Release 4.11 drivers/net/ethernet/emulex/benet/be_main.c

/*
 * Copyright (C) 2005 - 2016 Broadcom
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.  The full GNU General
 * Public License is included in this distribution in the file called COPYING.
 *
 * Contact Information:
 * linux-drivers@emulex.com
 *
 * Emulex
 * 3333 Susan Street
 * Costa Mesa, CA 92626
 */

#include <linux/prefetch.h>
#include <linux/module.h>
#include "be.h"
#include "be_cmds.h"
#include <asm/div64.h>
#include <linux/aer.h>
#include <linux/if_bridge.h>
#include <net/busy_poll.h>
#include <net/vxlan.h>


MODULE_VERSION(DRV_VER);
MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
MODULE_AUTHOR("Emulex Corporation");
MODULE_LICENSE("GPL");

/* num_vfs module param is obsolete.
 * Use sysfs method to enable/disable VFs.
 */

static unsigned int num_vfs;
module_param(num_vfs, uint, S_IRUGO);
MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");


static ushort rx_frag_size = 2048;
module_param(rx_frag_size, ushort, S_IRUGO);
MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");

/* Per-module error detection/recovery workq shared across all functions.
 * Each function schedules its own work request on this shared workq.
 */

static struct workqueue_struct *be_err_recovery_workq;


static const struct pci_device_id be_dev_ids[] = {
	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
	{ 0 }
};
MODULE_DEVICE_TABLE(pci, be_dev_ids);

/* Workqueue used by all functions for defering cmd calls to the adapter */

static struct workqueue_struct *be_wq;

/* UE Status Low CSR */

static const char * const ue_status_low_desc[] = {
	"CEV",
	"CTX",
	"DBUF",
	"ERX",
	"Host",
	"MPU",
	"NDMA",
	"PTC ",
	"RDMA ",
	"RXF ",
	"RXIPS ",
	"RXULP0 ",
	"RXULP1 ",
	"RXULP2 ",
	"TIM ",
	"TPOST ",
	"TPRE ",
	"TXIPS ",
	"TXULP0 ",
	"TXULP1 ",
	"UC ",
	"WDMA ",
	"TXULP2 ",
	"HOST1 ",
	"P0_OB_LINK ",
	"P1_OB_LINK ",
	"HOST_GPIO ",
	"MBOX ",
	"ERX2 ",
	"SPARE ",
	"JTAG ",
	"MPU_INTPEND "
};

/* UE Status High CSR */

static const char * const ue_status_hi_desc[] = {
	"LPCMEMHOST",
	"MGMT_MAC",
	"PCS0ONLINE",
	"MPU_IRAM",
	"PCS1ONLINE",
	"PCTL0",
	"PCTL1",
	"PMEM",
	"RR",
	"TXPB",
	"RXPP",
	"XAUI",
	"TXP",
	"ARM",
	"IPC",
	"HOST2",
	"HOST3",
	"HOST4",
	"HOST5",
	"HOST6",
	"HOST7",
	"ECRC",
	"Poison TLP",
	"NETC",
	"PERIPH",
	"LLTXULP",
	"D2P",
	"RCON",
	"LDMA",
	"LLTXP",
	"LLTXPB",
	"Unknown"
};


#define BE_VF_IF_EN_FLAGS	(BE_IF_FLAGS_UNTAGGED | \
                                 BE_IF_FLAGS_BROADCAST | \
                                 BE_IF_FLAGS_MULTICAST | \
                                 BE_IF_FLAGS_PASS_L3L4_ERRORS)



static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
{
	struct be_dma_mem *mem = &q->dma_mem;

	if (mem->va) {
		dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
				  mem->dma);
		mem->va = NULL;
	}
}

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58
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66.67%
Ivan Vecera
4
6.45%
1
33.33%
Total
62
100.00%
3
100.00%



static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
			  u16 len, u16 entry_size)
{
	struct be_dma_mem *mem = &q->dma_mem;

	memset(q, 0, sizeof(*q));
	q->len = len;
	q->entry_size = entry_size;
	mem->size = len * entry_size;
	mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
				      GFP_KERNEL);
	if (!mem->va)
		return -ENOMEM;
	return 0;
}

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98
94.23%
2
50.00%
Ivan Vecera
5
4.81%
1
25.00%
Joe Perches
1
0.96%
1
25.00%
Total
104
100.00%
4
100.00%



static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
{
	u32 reg, enabled;

	pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
			      &reg);
	enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;

	if (!enabled && enable)
		reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
	else if (enabled && !enable)
		reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
	else
		return;

	pci_write_config_dword(adapter->pdev,
			       PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
}

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73
98.65%
4
80.00%
Somnath Kotur
1
1.35%
1
20.00%
Total
74
100.00%
5
100.00%



static void be_intr_set(struct be_adapter *adapter, bool enable)
{
	int status = 0;

	/* On lancer interrupts can't be controlled via this register */
	if (lancer_chip(adapter))
		return;

	if (be_check_error(adapter, BE_ERROR_EEH))
		return;

	status = be_cmd_intr_set(adapter, enable);
	if (status)
		be_reg_intr_set(adapter, enable);
}

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Somnath Kotur
53
91.38%
1
50.00%
Venkat Duvvuru
5
8.62%
1
50.00%
Total
58
100.00%
2
100.00%



static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
{
	u32 val = 0;

	if (be_check_error(adapter, BE_ERROR_HW))
		return;

	val |= qid & DB_RQ_RING_ID_MASK;
	val |= posted << DB_RQ_NUM_POSTED_SHIFT;

	wmb();
	iowrite32(val, adapter->db + DB_RQ_OFFSET);
}

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Sathya Perla
48
82.76%
3
75.00%
Venkat Duvvuru
10
17.24%
1
25.00%
Total
58
100.00%
4
100.00%



static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
			  u16 posted)
{
	u32 val = 0;

	if (be_check_error(adapter, BE_ERROR_HW))
		return;

	val |= txo->q.id & DB_TXULP_RING_ID_MASK;
	val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;

	wmb();
	iowrite32(val, adapter->db + txo->db_offset);
}

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Sathya Perla
48
68.57%
3
60.00%
Vasundhara Volam
12
17.14%
1
20.00%
Venkat Duvvuru
10
14.29%
1
20.00%
Total
70
100.00%
5
100.00%



static void be_eq_notify(struct be_adapter *adapter, u16 qid,
			 bool arm, bool clear_int, u16 num_popped,
			 u32 eq_delay_mult_enc)
{
	u32 val = 0;

	val |= qid & DB_EQ_RING_ID_MASK;
	val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << DB_EQ_RING_ID_EXT_MASK_SHIFT);

	if (be_check_error(adapter, BE_ERROR_HW))
		return;

	if (arm)
		val |= 1 << DB_EQ_REARM_SHIFT;
	if (clear_int)
		val |= 1 << DB_EQ_CLR_SHIFT;
	val |= 1 << DB_EQ_EVNT_SHIFT;
	val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
	val |= eq_delay_mult_enc << DB_EQ_R2I_DLY_SHIFT;
	iowrite32(val, adapter->db + DB_EQ_OFFSET);
}

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Sathya Perla
94
87.04%
4
66.67%
Padmanabh Ratnakar
9
8.33%
1
16.67%
Venkat Duvvuru
5
4.63%
1
16.67%
Total
108
100.00%
6
100.00%



void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
{
	u32 val = 0;

	val |= qid & DB_CQ_RING_ID_MASK;
	val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
			DB_CQ_RING_ID_EXT_MASK_SHIFT);

	if (be_check_error(adapter, BE_ERROR_HW))
		return;

	if (arm)
		val |= 1 << DB_CQ_REARM_SHIFT;
	val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
	iowrite32(val, adapter->db + DB_CQ_OFFSET);
}

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Sathya Perla
74
93.67%
4
80.00%
Venkat Duvvuru
5
6.33%
1
20.00%
Total
79
100.00%
5
100.00%



static int be_dev_mac_add(struct be_adapter *adapter, u8 *mac)
{
	int i;

	/* Check if mac has already been added as part of uc-list */
	for (i = 0; i < adapter->uc_macs; i++) {
		if (ether_addr_equal(adapter->uc_list[i].mac, mac)) {
			/* mac already added, skip addition */
			adapter->pmac_id[0] = adapter->pmac_id[i + 1];
			return 0;
		}
	}

	return be_cmd_pmac_add(adapter, mac, adapter->if_handle,
			       &adapter->pmac_id[0], 0);
}

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97.92%
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50.00%
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2
2.08%
1
50.00%
Total
96
100.00%
2
100.00%



static void be_dev_mac_del(struct be_adapter *adapter, int pmac_id)
{
	int i;

	/* Skip deletion if the programmed mac is
         * being used in uc-list
         */
	for (i = 0; i < adapter->uc_macs; i++) {
		if (adapter->pmac_id[i + 1] == pmac_id)
			return;
	}
	be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
}

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1
100.00%



static int be_mac_addr_set(struct net_device *netdev, void *p)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct device *dev = &adapter->pdev->dev;
	struct sockaddr *addr = p;
	int status;
	u8 mac[ETH_ALEN];
	u32 old_pmac_id = adapter->pmac_id[0];

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	/* Proceed further only if, User provided MAC is different
         * from active MAC
         */
	if (ether_addr_equal(addr->sa_data, adapter->dev_mac))
		return 0;

	/* BE3 VFs without FILTMGMT privilege are not allowed to set its MAC
         * address
         */
	if (BEx_chip(adapter) && be_virtfn(adapter) &&
	    !check_privilege(adapter, BE_PRIV_FILTMGMT))
		return -EPERM;

	/* if device is not running, copy MAC to netdev->dev_addr */
	if (!netif_running(netdev))
		goto done;

	/* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
         * privilege or if PF did not provision the new MAC address.
         * On BE3, this cmd will always fail if the VF doesn't have the
         * FILTMGMT privilege. This failure is OK, only if the PF programmed
         * the MAC for the VF.
         */
	mutex_lock(&adapter->rx_filter_lock);
	status = be_dev_mac_add(adapter, (u8 *)addr->sa_data);
	if (!status) {

		/* Delete the old programmed MAC. This call may fail if the
                 * old MAC was already deleted by the PF driver.
                 */
		if (adapter->pmac_id[0] != old_pmac_id)
			be_dev_mac_del(adapter, old_pmac_id);
	}

	mutex_unlock(&adapter->rx_filter_lock);
	/* Decide if the new MAC is successfully activated only after
         * querying the FW
         */
	status = be_cmd_get_active_mac(adapter, adapter->pmac_id[0], mac,
				       adapter->if_handle, true, 0);
	if (status)
		goto err;

	/* The MAC change did not happen, either due to lack of privilege
         * or PF didn't pre-provision.
         */
	if (!ether_addr_equal(addr->sa_data, mac)) {
		status = -EPERM;
		goto err;
	}

	/* Remember currently programmed MAC */
	ether_addr_copy(adapter->dev_mac, addr->sa_data);
done:
	ether_addr_copy(netdev->dev_addr, addr->sa_data);
	dev_info(dev, "MAC address changed to %pM\n", addr->sa_data);
	return 0;
err:
	dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
	return status;
}

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43.48%
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Suresh Reddy
45
15.05%
3
20.00%
Somnath Kotur
32
10.70%
1
6.67%
Ivan Vecera
28
9.36%
2
13.33%
Ajit Khaparde
18
6.02%
3
20.00%
Kalesh Purayil
16
5.35%
1
6.67%
Vasundhara Volam
15
5.02%
1
6.67%
Padmanabh Ratnakar
13
4.35%
1
6.67%
Ding Tianhong
2
0.67%
1
6.67%
Total
299
100.00%
15
100.00%

/* BE2 supports only v0 cmd */


static void *hw_stats_from_cmd(struct be_adapter *adapter)
{
	if (BE2_chip(adapter)) {
		struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;

		return &cmd->hw_stats;
	} else if (BE3_chip(adapter)) {
		struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;

		return &cmd->hw_stats;
	} else {
		struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;

		return &cmd->hw_stats;
	}
}

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30
35.29%
2
66.67%
Total
85
100.00%
3
100.00%

/* BE2 supports only v0 cmd */


static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
{
	if (BE2_chip(adapter)) {
		struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);

		return &hw_stats->erx;
	} else if (BE3_chip(adapter)) {
		struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);

		return &hw_stats->erx;
	} else {
		struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);

		return &hw_stats->erx;
	}
}

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82
100.00%
2
100.00%



static void populate_be_v0_stats(struct be_adapter *adapter)
{
	struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
	struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
	struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
	struct be_port_rxf_stats_v0 *port_stats =
					&rxf_stats->port[adapter->port_num];
	struct be_drv_stats *drvs = &adapter->drv_stats;

	be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
	drvs->rx_pause_frames = port_stats->rx_pause_frames;
	drvs->rx_crc_errors = port_stats->rx_crc_errors;
	drvs->rx_control_frames = port_stats->rx_control_frames;
	drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
	drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
	drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
	drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
	drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
	drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
	drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
	drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
	drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
	drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
	drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
	drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
	drvs->rx_dropped_header_too_small =
		port_stats->rx_dropped_header_too_small;
	drvs->rx_address_filtered =
					port_stats->rx_address_filtered +
					port_stats->rx_vlan_filtered;
	drvs->rx_alignment_symbol_errors =
		port_stats->rx_alignment_symbol_errors;

	drvs->tx_pauseframes = port_stats->tx_pauseframes;
	drvs->tx_controlframes = port_stats->tx_controlframes;

	if (adapter->port_num)
		drvs->jabber_events = rxf_stats->port1_jabber_events;
	else
		drvs->jabber_events = rxf_stats->port0_jabber_events;
	drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
	drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
	drvs->forwarded_packets = rxf_stats->forwarded_packets;
	drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
	drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
	drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
}

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3
0.93%
1
20.00%
Total
322
100.00%
5
100.00%



static void populate_be_v1_stats(struct be_adapter *adapter)
{
	struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
	struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
	struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
	struct be_port_rxf_stats_v1 *port_stats =
					&rxf_stats->port[adapter->port_num];
	struct be_drv_stats *drvs = &adapter->drv_stats;

	be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
	drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
	drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
	drvs->rx_pause_frames = port_stats->rx_pause_frames;
	drvs->rx_crc_errors = port_stats->rx_crc_errors;
	drvs->rx_control_frames = port_stats->rx_control_frames;
	drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
	drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
	drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
	drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
	drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
	drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
	drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
	drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
	drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
	drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
	drvs->rx_dropped_header_too_small =
		port_stats->rx_dropped_header_too_small;
	drvs->rx_input_fifo_overflow_drop =
		port_stats->rx_input_fifo_overflow_drop;
	drvs->rx_address_filtered = port_stats->rx_address_filtered;
	drvs->rx_alignment_symbol_errors =
		port_stats->rx_alignment_symbol_errors;
	drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
	drvs->tx_pauseframes = port_stats->tx_pauseframes;
	drvs->tx_controlframes = port_stats->tx_controlframes;
	drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
	drvs->jabber_events = port_stats->jabber_events;
	drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
	drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
	drvs->forwarded_packets = rxf_stats->forwarded_packets;
	drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
	drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
	drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
}

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2
33.33%
Suresh Reddy
2
0.61%
1
16.67%
Total
327
100.00%
6
100.00%



static void populate_be_v2_stats(struct be_adapter *adapter)
{
	struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
	struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
	struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
	struct be_port_rxf_stats_v2 *port_stats =
					&rxf_stats->port[adapter->port_num];
	struct be_drv_stats *drvs = &adapter->drv_stats;

	be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
	drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
	drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
	drvs->rx_pause_frames = port_stats->rx_pause_frames;
	drvs->rx_crc_errors = port_stats->rx_crc_errors;
	drvs->rx_control_frames = port_stats->rx_control_frames;
	drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
	drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
	drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
	drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
	drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
	drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
	drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
	drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
	drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
	drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
	drvs->rx_dropped_header_too_small =
		port_stats->rx_dropped_header_too_small;
	drvs->rx_input_fifo_overflow_drop =
		port_stats->rx_input_fifo_overflow_drop;
	drvs->rx_address_filtered = port_stats->rx_address_filtered;
	drvs->rx_alignment_symbol_errors =
		port_stats->rx_alignment_symbol_errors;
	drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
	drvs->tx_pauseframes = port_stats->tx_pauseframes;
	drvs->tx_controlframes = port_stats->tx_controlframes;
	drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
	drvs->jabber_events = port_stats->jabber_events;
	drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
	drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
	drvs->forwarded_packets = rxf_stats->forwarded_packets;
	drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
	drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
	drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
	if (be_roce_supported(adapter)) {
		drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
		drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
		drvs->rx_roce_frames = port_stats->roce_frames_received;
		drvs->roce_drops_crc = port_stats->roce_drops_crc;
		drvs->roce_drops_payload_len =
			port_stats->roce_drops_payload_len;
	}
}

Contributors
Person
Tokens
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CommitProp
Ajit Khaparde
376
100.00%
2
100.00%
Total
376
100.00%
2
100.00%



static void populate_lancer_stats(struct be_adapter *adapter)
{
	struct be_drv_stats *drvs = &adapter->drv_stats;
	struct lancer_pport_stats *pport_stats = pport_stats_from_cmd(adapter);

	be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
	drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
	drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
	drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
	drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
	drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
	drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
	drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
	drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
	drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
	drvs->rx_dropped_tcp_length =
				pport_stats->rx_dropped_invalid_tcp_length;
	drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
	drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
	drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
	drvs->rx_dropped_header_too_small =
				pport_stats->rx_dropped_header_too_small;
	drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
	drvs->rx_address_filtered =
					pport_stats->rx_address_filtered +
					pport_stats->rx_vlan_filtered;
	drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
	drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
	drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
	drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
	drvs->jabber_events = pport_stats->rx_jabbers;
	drvs->forwarded_packets = pport_stats->num_forwards_lo;
	drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
	drvs->rx_drops_too_many_frags =
				pport_stats->rx_drops_too_many_frags_lo;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Selvin Xavier
221
92.86%
2
40.00%
Sathya Perla
14
5.88%
2
40.00%
Suresh Reddy
3
1.26%
1
20.00%
Total
238
100.00%
5
100.00%



static void accumulate_16bit_val(u32 *acc, u16 val)
{

#define lo(x)			(x & 0xFFFF)

#define hi(x)			(x & 0xFFFF0000)
	bool wrapped = val < lo(*acc);
	u32 newacc = hi(*acc) + val;

	if (wrapped)
		newacc += 65536;
	ACCESS_ONCE(*acc) = newacc;
}

Contributors
Person
Tokens
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CommitProp
Sathya Perla
65
100.00%
1
100.00%
Total
65
100.00%
1
100.00%



static void populate_erx_stats(struct be_adapter *adapter,
			       struct be_rx_obj *rxo, u32 erx_stat)
{
	if (!BEx_chip(adapter))
		rx_stats(rxo)->rx_drops_no_frags = erx_stat;
	else
		/* below erx HW counter can actually wrap around after
                 * 65535. Driver accumulates a 32-bit value
                 */
		accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
				     (u16)erx_stat);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
53
98.15%
1
50.00%
Jingoo Han
1
1.85%
1
50.00%
Total
54
100.00%
2
100.00%



void be_parse_stats(struct be_adapter *adapter)
{
	struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
	struct be_rx_obj *rxo;
	int i;
	u32 erx_stat;

	if (lancer_chip(adapter)) {
		populate_lancer_stats(adapter);
	} else {
		if (BE2_chip(adapter))
			populate_be_v0_stats(adapter);
		else if (BE3_chip(adapter))
			/* for BE3 */
			populate_be_v1_stats(adapter);
		else
			populate_be_v2_stats(adapter);

		/* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
		for_all_rx_queues(adapter, rxo, i) {
			erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
			populate_erx_stats(adapter, rxo, erx_stat);
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
59
52.21%
4
44.44%
Ajit Khaparde
39
34.51%
3
33.33%
Selvin Xavier
12
10.62%
1
11.11%
Padmanabh Ratnakar
3
2.65%
1
11.11%
Total
113
100.00%
9
100.00%



static void be_get_stats64(struct net_device *netdev,
			   struct rtnl_link_stats64 *stats)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_drv_stats *drvs = &adapter->drv_stats;
	struct be_rx_obj *rxo;
	struct be_tx_obj *txo;
	u64 pkts, bytes;
	unsigned int start;
	int i;

	for_all_rx_queues(adapter, rxo, i) {
		const struct be_rx_stats *rx_stats = rx_stats(rxo);

		do {
			start = u64_stats_fetch_begin_irq(&rx_stats->sync);
			pkts = rx_stats(rxo)->rx_pkts;
			bytes = rx_stats(rxo)->rx_bytes;
		} while (u64_stats_fetch_retry_irq(&rx_stats->sync, start));
		stats->rx_packets += pkts;
		stats->rx_bytes += bytes;
		stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
		stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
					rx_stats(rxo)->rx_drops_no_frags;
	}

	for_all_tx_queues(adapter, txo, i) {
		const struct be_tx_stats *tx_stats = tx_stats(txo);

		do {
			start = u64_stats_fetch_begin_irq(&tx_stats->sync);
			pkts = tx_stats(txo)->tx_pkts;
			bytes = tx_stats(txo)->tx_bytes;
		} while (u64_stats_fetch_retry_irq(&tx_stats->sync, start));
		stats->tx_packets += pkts;
		stats->tx_bytes += bytes;
	}

	/* bad pkts received */
	stats->rx_errors = drvs->rx_crc_errors +
		drvs->rx_alignment_symbol_errors +
		drvs->rx_in_range_errors +
		drvs->rx_out_range_errors +
		drvs->rx_frame_too_long +
		drvs->rx_dropped_too_small +
		drvs->rx_dropped_too_short +
		drvs->rx_dropped_header_too_small +
		drvs->rx_dropped_tcp_length +
		drvs->rx_dropped_runt;

	/* detailed rx errors */
	stats->rx_length_errors = drvs->rx_in_range_errors +
		drvs->rx_out_range_errors +
		drvs->rx_frame_too_long;

	stats->rx_crc_errors = drvs->rx_crc_errors;

	/* frame alignment errors */
	stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;

	/* receiver fifo overrun */
	/* drops_no_pbuf is no per i/f, it's per BE card */
	stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
				drvs->rx_input_fifo_overflow_drop +
				drvs->rx_drops_no_pbuf;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
294
86.98%
7
53.85%
Ajit Khaparde
33
9.76%
3
23.08%
Eric Dumazet
6
1.78%
1
7.69%
Eric W. Biedermann
4
1.18%
1
7.69%
Stephen Hemminger
1
0.30%
1
7.69%
Total
338
100.00%
13
100.00%



void be_link_status_update(struct be_adapter *adapter, u8 link_status)
{
	struct net_device *netdev = adapter->netdev;

	if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
		netif_carrier_off(netdev);
		adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
	}

	if (link_status)
		netif_carrier_on(netdev);
	else
		netif_carrier_off(netdev);

	netdev_info(netdev, "Link is %s\n", link_status ? "Up" : "Down");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
36
48.65%
5
55.56%
Ajit Khaparde
24
32.43%
2
22.22%
Ivan Vecera
13
17.57%
1
11.11%
Stephen Hemminger
1
1.35%
1
11.11%
Total
74
100.00%
9
100.00%



static int be_gso_hdr_len(struct sk_buff *skb)
{
	if (skb->encapsulation)
		return skb_inner_transport_offset(skb) +
		       inner_tcp_hdrlen(skb);
	return skb_transport_offset(skb) + tcp_hdrlen(skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
39
100.00%
1
100.00%
Total
39
100.00%
1
100.00%



static void be_tx_stats_update(struct be_tx_obj *txo, struct sk_buff *skb)
{
	struct be_tx_stats *stats = tx_stats(txo);
	u32 tx_pkts = skb_shinfo(skb)->gso_segs ? : 1;
	/* Account for headers which get duplicated in TSO pkt */
	u32 dup_hdr_len = tx_pkts > 1 ? be_gso_hdr_len(skb) * (tx_pkts - 1) : 0;

	u64_stats_update_begin(&stats->sync);
	stats->tx_reqs++;
	stats->tx_bytes += skb->len + dup_hdr_len;
	stats->tx_pkts += tx_pkts;
	if (skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL)
		stats->tx_vxlan_offload_pkts += tx_pkts;
	u64_stats_update_end(&stats->sync);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
58
50.43%
6
66.67%
Sriharsha Basavapatna
53
46.09%
2
22.22%
Ajit Khaparde
4
3.48%
1
11.11%
Total
115
100.00%
9
100.00%

/* Returns number of WRBs needed for the skb */


static u32 skb_wrb_cnt(struct sk_buff *skb)
{
	/* +1 for the header wrb */
	return 1 + (skb_headlen(skb) ? 1 : 0) + skb_shinfo(skb)->nr_frags;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
31
93.94%
2
66.67%
David S. Miller
2
6.06%
1
33.33%
Total
33
100.00%
3
100.00%



static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
{
	wrb->frag_pa_hi = cpu_to_le32(upper_32_bits(addr));
	wrb->frag_pa_lo = cpu_to_le32(lower_32_bits(addr));
	wrb->frag_len = cpu_to_le32(len & ETH_WRB_FRAG_LEN_MASK);
	wrb->rsvd0 = 0;
}

Contributors
Person
Tokens
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CommitProp
Sathya Perla
59
100.00%
2
100.00%
Total
59
100.00%
2
100.00%

/* A dummy wrb is just all zeros. Using a separate routine for dummy-wrb
 * to avoid the swap and shift/mask operations in wrb_fill().
 */


static inline void wrb_fill_dummy(struct be_eth_wrb *wrb)
{
	wrb->frag_pa_hi = 0;
	wrb->frag_pa_lo = 0;
	wrb->frag_len = 0;
	wrb->rsvd0 = 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
30
83.33%
2
66.67%
Somnath Kotur
6
16.67%
1
33.33%
Total
36
100.00%
3
100.00%



static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
				     struct sk_buff *skb)
{
	u8 vlan_prio;
	u16 vlan_tag;

	vlan_tag = skb_vlan_tag_get(skb);
	vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
	/* If vlan priority provided by OS is NOT in available bmap */
	if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
		vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
				adapter->recommended_prio_bits;

	return vlan_tag;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
70
97.22%
1
33.33%
Sathya Perla
1
1.39%
1
33.33%
Jiri Pirko
1
1.39%
1
33.33%
Total
72
100.00%
3
100.00%

/* Used only for IP tunnel packets */


static u16 skb_inner_ip_proto(struct sk_buff *skb)
{
	return (inner_ip_hdr(skb)->version == 4) ?
		inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
37
100.00%
1
100.00%
Total
37
100.00%
1
100.00%



static u16 skb_ip_proto(struct sk_buff *skb)
{
	return (ip_hdr(skb)->version == 4) ?
		ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
37
100.00%
1
100.00%
Total
37
100.00%
1
100.00%



static inline bool be_is_txq_full(struct be_tx_obj *txo)
{
	return atomic_read(&txo->q.used) + BE_MAX_TX_FRAG_COUNT >= txo->q.len;
}

Contributors
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CommitProp
Sriharsha Basavapatna
31
100.00%
1
100.00%
Total
31
100.00%
1
100.00%



static inline bool be_can_txq_wake(struct be_tx_obj *txo)
{
	return atomic_read(&txo->q.used) < txo->q.len / 2;
}

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Sriharsha Basavapatna
31
100.00%
1
100.00%
Total
31
100.00%
1
100.00%



static inline bool be_is_tx_compl_pending(struct be_tx_obj *txo)
{
	return atomic_read(&txo->q.used) > txo->pend_wrb_cnt;
}

Contributors
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CommitProp
Sriharsha Basavapatna
27
100.00%
1
100.00%
Total
27
100.00%
1
100.00%



static void be_get_wrb_params_from_skb(struct be_adapter *adapter,
				       struct sk_buff *skb,
				       struct be_wrb_params *wrb_params)
{
	u16 proto;

	if (skb_is_gso(skb)) {
		BE_WRB_F_SET(wrb_params->features, LSO, 1);
		wrb_params->lso_mss = skb_shinfo(skb)->gso_size;
		if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
			BE_WRB_F_SET(wrb_params->features, LSO6, 1);
	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
		if (skb->encapsulation) {
			BE_WRB_F_SET(wrb_params->features, IPCS, 1);
			proto = skb_inner_ip_proto(skb);
		} else {
			proto = skb_ip_proto(skb);
		}
		if (proto == IPPROTO_TCP)
			BE_WRB_F_SET(wrb_params->features, TCPCS, 1);
		else if (proto == IPPROTO_UDP)
			BE_WRB_F_SET(wrb_params->features, UDPCS, 1);
	}

	if (skb_vlan_tag_present(skb)) {
		BE_WRB_F_SET(wrb_params->features, VLAN, 1);
		wrb_params->vlan_tag = be_get_tx_vlan_tag(adapter, skb);
	}

	BE_WRB_F_SET(wrb_params->features, CRC, 1);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
119
58.62%
3
37.50%
Sriharsha Basavapatna
53
26.11%
1
12.50%
Ajit Khaparde
17
8.37%
2
25.00%
Somnath Kotur
13
6.40%
1
12.50%
Jiri Pirko
1
0.49%
1
12.50%
Total
203
100.00%
8
100.00%



static void wrb_fill_hdr(struct be_adapter *adapter,
			 struct be_eth_hdr_wrb *hdr,
			 struct be_wrb_params *wrb_params,
			 struct sk_buff *skb)
{
	memset(hdr, 0, sizeof(*hdr));

	SET_TX_WRB_HDR_BITS(crc, hdr,
			    BE_WRB_F_GET(wrb_params->features, CRC));
	SET_TX_WRB_HDR_BITS(ipcs, hdr,
			    BE_WRB_F_GET(wrb_params->features, IPCS));
	SET_TX_WRB_HDR_BITS(tcpcs, hdr,
			    BE_WRB_F_GET(wrb_params->features, TCPCS));
	SET_TX_WRB_HDR_BITS(udpcs, hdr,
			    BE_WRB_F_GET(wrb_params->features, UDPCS));

	SET_TX_WRB_HDR_BITS(lso, hdr,
			    BE_WRB_F_GET(wrb_params->features, LSO));
	SET_TX_WRB_HDR_BITS(lso6, hdr,
			    BE_WRB_F_GET(wrb_params->features, LSO6));
	SET_TX_WRB_HDR_BITS(lso_mss, hdr, wrb_params->lso_mss);

	/* Hack to skip HW VLAN tagging needs evt = 1, compl = 0. When this
         * hack is not needed, the evt bit is set while ringing DB.
         */
	SET_TX_WRB_HDR_BITS(event, hdr,
			    BE_WRB_F_GET(wrb_params->features, VLAN_SKIP_HW));
	SET_TX_WRB_HDR_BITS(vlan, hdr,
			    BE_WRB_F_GET(wrb_params->features, VLAN));
	SET_TX_WRB_HDR_BITS(vlan_tag, hdr, wrb_params->vlan_tag);

	SET_TX_WRB_HDR_BITS(num_wrb, hdr, skb_wrb_cnt(skb));
	SET_TX_WRB_HDR_BITS(len, hdr, skb->len);
	SET_TX_WRB_HDR_BITS(mgmt, hdr,
			    BE_WRB_F_GET(wrb_params->features, OS2BMC));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
183
79.91%
1
20.00%
Sathya Perla
30
13.10%
3
60.00%
Venkat Duvvuru
16
6.99%
1
20.00%
Total
229
100.00%
5
100.00%



static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
			  bool unmap_single)
{
	dma_addr_t dma;
	u32 frag_len = le32_to_cpu(wrb->frag_len);


	dma = (u64)le32_to_cpu(wrb->frag_pa_hi) << 32 |
		(u64)le32_to_cpu(wrb->frag_pa_lo);
	if (frag_len) {
		if (unmap_single)
			dma_unmap_single(dev, dma, frag_len, DMA_TO_DEVICE);
		else
			dma_unmap_page(dev, dma, frag_len, DMA_TO_DEVICE);
	}
}

Contributors
Person
Tokens
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Commits
CommitProp
Sathya Perla
80
89.89%
2
50.00%
Ivan Vecera
8
8.99%
1
25.00%
FUJITA Tomonori
1
1.12%
1
25.00%
Total
89
100.00%
4
100.00%

/* Grab a WRB header for xmit */


static u32 be_tx_get_wrb_hdr(struct be_tx_obj *txo)
{
	u32 head = txo->q.head;

	queue_head_inc(&txo->q);
	return head;
}

Contributors
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Sriharsha Basavapatna
29
93.55%
1
50.00%
Ajit Khaparde
2
6.45%
1
50.00%
Total
31
100.00%
2
100.00%

/* Set up the WRB header for xmit */


static void be_tx_setup_wrb_hdr(struct be_adapter *adapter,
				struct be_tx_obj *txo,
				struct be_wrb_params *wrb_params,
				struct sk_buff *skb, u16 head)
{
	u32 num_frags = skb_wrb_cnt(skb);
	struct be_queue_info *txq = &txo->q;
	struct be_eth_hdr_wrb *hdr = queue_index_node(txq, head);

	wrb_fill_hdr(adapter, hdr, wrb_params, skb);
	be_dws_cpu_to_le(hdr, sizeof(*hdr));

	BUG_ON(txo->sent_skb_list[head]);
	txo->sent_skb_list[head] = skb;
	txo->last_req_hdr = head;
	atomic_add(num_frags, &txq->used);
	txo->last_req_wrb_cnt = num_frags;
	txo->pend_wrb_cnt += num_frags;
}

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Sriharsha Basavapatna
128
100.00%
1
100.00%
Total
128
100.00%
1
100.00%

/* Setup a WRB fragment (buffer descriptor) for xmit */


static void be_tx_setup_wrb_frag(struct be_tx_obj *txo, dma_addr_t busaddr,
				 int len)
{
	struct be_eth_wrb *wrb;
	struct be_queue_info *txq = &txo->q;

	wrb = queue_head_node(txq);
	wrb_fill(wrb, busaddr, len);
	queue_head_inc(txq);
}

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Sriharsha Basavapatna
53
100.00%
1
100.00%
Total
53
100.00%
1
100.00%

/* Bring the queue back to the state it was in before be_xmit_enqueue() routine
 * was invoked. The producer index is restored to the previous packet and the
 * WRBs of the current packet are unmapped. Invoked to handle tx setup errors.
 */


static void be_xmit_restore(struct be_adapter *adapter,
			    struct be_tx_obj *txo, u32 head, bool map_single,
			    u32 copied)
{
	struct device *dev;
	struct be_eth_wrb *wrb;
	struct be_queue_info *txq = &txo->q;

	dev = &adapter->pdev->dev;
	txq->head = head;

	/* skip the first wrb (hdr); it's not mapped */
	queue_head_inc(txq);
	while (copied) {
		wrb = queue_head_node(txq);
		unmap_tx_frag(dev, wrb, map_single);
		map_single = false;
		copied -= le32_to_cpu(wrb->frag_len);
		queue_head_inc(txq);
	}

	txq->head = head;
}

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Sriharsha Basavapatna
111
99.11%
1
50.00%
Ajit Khaparde
1
0.89%
1
50.00%
Total
112
100.00%
2
100.00%

/* Enqueue the given packet for transmit. This routine allocates WRBs for the
 * packet, dma maps the packet buffers and sets up the WRBs. Returns the number
 * of WRBs used up by the packet.
 */


static u32 be_xmit_enqueue(struct be_adapter *adapter, struct be_tx_obj *txo,
			   struct sk_buff *skb,
			   struct be_wrb_params *wrb_params)
{
	u32 i, copied = 0, wrb_cnt = skb_wrb_cnt(skb);
	struct device *dev = &adapter->pdev->dev;
	struct be_queue_info *txq = &txo->q;
	bool map_single = false;
	u32 head = txq->head;
	dma_addr_t busaddr;
	int len;

	head = be_tx_get_wrb_hdr(txo);

	if (skb->len > skb->data_len) {
		len = skb_headlen(skb);

		busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
		if (dma_mapping_error(dev, busaddr))
			goto dma_err;
		map_single = true;
		be_tx_setup_wrb_frag(txo, busaddr, len);
		copied += len;
	}

	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
		const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
		len = skb_frag_size(frag);

		busaddr = skb_frag_dma_map(dev, frag, 0, len, DMA_TO_DEVICE);
		if (dma_mapping_error(dev, busaddr))
			goto dma_err;
		be_tx_setup_wrb_frag(txo, busaddr, len);
		copied += len;
	}

	be_tx_setup_wrb_hdr(adapter, txo, wrb_params, skb, head);

	be_tx_stats_update(txo, skb);
	return wrb_cnt;

dma_err:
	adapter->drv_stats.dma_map_errors++;
	be_xmit_restore(adapter, txo, head, map_single, copied);
	return 0;
}

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Sathya Perla
191
67.73%
4
28.57%
Sriharsha Basavapatna
46
16.31%
2
14.29%
Alexander Duyck
14
4.96%
1
7.14%
Ivan Vecera
14
4.96%
1
7.14%
Vasundhara Volam
7
2.48%
1
7.14%
Eric Dumazet
4
1.42%
2
14.29%
Ajit Khaparde
4
1.42%
2
14.29%
Ian Campbell
2
0.71%
1
7.14%
Total
282
100.00%
14
100.00%



static inline int qnq_async_evt_rcvd(struct be_adapter *adapter)
{
	return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD;
}

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Sathya Perla
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%



static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
					     struct sk_buff *skb,
					     struct be_wrb_params
					     *wrb_params)
{
	u16 vlan_tag = 0;

	skb = skb_share_check(skb, GFP_ATOMIC);
	if (unlikely(!skb))
		return skb;

	if (skb_vlan_tag_present(skb))
		vlan_tag = be_get_tx_vlan_tag(adapter, skb);

	if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
		if (!vlan_tag)
			vlan_tag = adapter->pvid;
		/* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
                 * skip VLAN insertion
                 */
		BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);
	}

	if (vlan_tag) {
		skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q),
						vlan_tag);
		if (unlikely(!skb))
			return skb;
		skb->vlan_tci = 0;
	}

	/* Insert the outer VLAN, if any */
	if (adapter->qnq_vid) {
		vlan_tag = adapter->qnq_vid;
		skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q),
						vlan_tag);
		if (unlikely(!skb))
			return skb;
		BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);
	}

	return skb;
}

Contributors
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CommitProp
Ajit Khaparde
85
44.50%
1
14.29%
Somnath Kotur
61
31.94%
1
14.29%
Sriharsha Basavapatna
23
12.04%
1
14.29%
David S. Miller
10
5.24%
1
14.29%
Sarveshwar Bandi
9
4.71%
1
14.29%
Jiri Pirko
3
1.57%
2
28.57%
Total
191
100.00%
7
100.00%



static bool be_ipv6_exthdr_check(struct sk_buff *skb)
{
	struct ethhdr *eh = (struct ethhdr *)skb->data;
	u16 offset = ETH_HLEN;

	if (eh->h_proto == htons(ETH_P_IPV6)) {
		struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);

		offset += sizeof(struct ipv6hdr);
		if (ip6h->nexthdr != NEXTHDR_TCP &&
		    ip6h->nexthdr != NEXTHDR_UDP) {
			struct ipv6_opt_hdr *ehdr =
				(struct ipv6_opt_hdr *)(skb->data + offset);

			/* offending pkt: 2nd byte following IPv6 hdr is 0xff */
			if (ehdr->hdrlen == 0xff)
				return true;
		}
	}
	return false;
}

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Ajit Khaparde
118
100.00%
1
100.00%
Total
118
100.00%
1
100.00%



static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
{
	return skb_vlan_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
}

Contributors
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Ajit Khaparde
29
96.67%
1
50.00%
Jiri Pirko
1
3.33%
1
50.00%
Total
30
100.00%
2
100.00%



static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb)
{
	return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
}

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Ajit Khaparde
23
85.19%
1
50.00%
Somnath Kotur
4
14.81%
1
50.00%
Total
27
100.00%
2
100.00%



static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter,
						  struct sk_buff *skb,
						  struct be_wrb_params
						  *wrb_params)
{
	struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
	unsigned int eth_hdr_len;
	struct iphdr *ip;

	/* For padded packets, BE HW modifies tot_len field in IP header
         * incorrecly when VLAN tag is inserted by HW.
         * For padded packets, Lancer computes incorrect checksum.
         */
	eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
						VLAN_ETH_HLEN : ETH_HLEN;
	if (skb->len <= 60 &&
	    (lancer_chip(adapter) || skb_vlan_tag_present(skb)) &&
	    is_ipv4_pkt(skb)) {
		ip = (struct iphdr *)ip_hdr(skb);
		pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
	}

	/* If vlan tag is already inlined in the packet, skip HW VLAN
         * tagging in pvid-tagging mode
         */
	if (be_pvid_tagging_enabled(adapter) &&
	    veh->h_vlan_proto == htons(ETH_P_8021Q))
		BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1);

	/* HW has a bug wherein it will calculate CSUM for VLAN
         * pkts even though it is disabled.
         * Manually insert VLAN in pkt.
         */
	if (skb->ip_summed != CHECKSUM_PARTIAL &&
	    skb_vlan_tag_present(skb)) {
		skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params);
		if (unlikely(!skb))
			goto err;
	}

	/* HW may lockup when VLAN HW tagging is requested on
         * certain ipv6 packets. Drop such pkts if the HW workaround to
         * skip HW tagging is not enabled by FW.
         */
	if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
		     (adapter->pvid || adapter->qnq_vid) &&
		     !qnq_async_evt_rcvd(adapter)))
		goto tx_drop;

	/* Manual VLAN tag insertion to prevent:
         * ASIC lockup when the ASIC inserts VLAN tag into
         * certain ipv6 packets. Insert VLAN tags in driver,
         * and set event, completion, vlan bits accordingly
         * in the Tx WRB.
         */
	if (be_ipv6_tx_stall_chk(adapter, skb) &&
	    be_vlan_tag_tx_chk(adapter, skb)) {
		skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params);
		if (unlikely(!skb))
			goto err;
	}

	return skb;
tx_drop:
	dev_kfree_skb_any(skb);
err:
	return NULL;
}

Contributors
Person
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CommitProp
Ajit Khaparde
137
50.93%
3
23.08%
Somnath Kotur
65
24.16%
2
15.38%
Sathya Perla
41
15.24%
3
23.08%
Sriharsha Basavapatna
15
5.58%
1
7.69%
Vasundhara Volam
9
3.35%
3
23.08%
Jiri Pirko
2
0.74%
1
7.69%
Total
269
100.00%
13
100.00%



static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
					   struct sk_buff *skb,
					   struct be_wrb_params *wrb_params)
{
	int err;

	/* Lancer, SH and BE3 in SRIOV mode have a bug wherein
         * packets that are 32b or less may cause a transmit stall
         * on that port. The workaround is to pad such packets
         * (len <= 32 bytes) to a minimum length of 36b.
         */
	if (skb->len <= 32) {
		if (skb_put_padto(skb, 36))
			return NULL;
	}

	if (BEx_chip(adapter) || lancer_chip(adapter)) {
		skb = be_lancer_xmit_workarounds(adapter, skb, wrb_params);
		if (!skb)
			return NULL;
	}

	/* The stack can send us skbs with length greater than
         * what the HW can handle. Trim the extra bytes.
         */
	WARN_ON_ONCE(skb->len > BE_MAX_GSO_SIZE);
	err = pskb_trim(skb, BE_MAX_GSO_SIZE);
	WARN_ON(err);

	return skb;
}

Contributors
Person
Tokens
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CommitProp
Vasundhara Volam
76
69.72%
1
20.00%
Ajit Khaparde
27
24.77%
1
20.00%
Sriharsha Basavapatna
4
3.67%
1
20.00%
Alexander Duyck
1
0.92%
1
20.00%
Suresh Reddy
1
0.92%
1
20.00%
Total
109
100.00%
5
100.00%



static void be_xmit_flush(struct be_adapter *adapter, struct be_tx_obj *txo)
{
	struct be_queue_info *txq = &txo->q;
	struct be_eth_hdr_wrb *hdr = queue_index_node(txq, txo->last_req_hdr);

	/* Mark the last request eventable if it hasn't been marked already */
	if (!(hdr->dw[2] & cpu_to_le32(TX_HDR_WRB_EVT)))
		hdr->dw[2] |= cpu_to_le32(TX_HDR_WRB_EVT | TX_HDR_WRB_COMPL);

	/* compose a dummy wrb if there are odd set of wrbs to notify */
	if (!lancer_chip(adapter) && (txo->pend_wrb_cnt & 1)) {
		wrb_fill_dummy(queue_head_node(txq));
		queue_head_inc(txq);
		atomic_inc(&txq->used);
		txo->pend_wrb_cnt++;
		hdr->dw[2] &= ~cpu_to_le32(TX_HDR_WRB_NUM_MASK <<
					   TX_HDR_WRB_NUM_SHIFT);
		hdr->dw[2] |= cpu_to_le32((txo->last_req_wrb_cnt + 1) <<
					  TX_HDR_WRB_NUM_SHIFT);
	}
	be_txq_notify(adapter, txo, txo->pend_wrb_cnt);
	txo->pend_wrb_cnt = 0;
}

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Sathya Perla
169
100.00%
2
100.00%
Total
169
100.00%
2
100.00%

/* OS2BMC related */


#define DHCP_CLIENT_PORT	68

#define DHCP_SERVER_PORT	67

#define NET_BIOS_PORT1		137

#define NET_BIOS_PORT2		138

#define DHCPV6_RAS_PORT		547


#define is_mc_allowed_on_bmc(adapter, eh)	\
	(!is_multicast_filt_enabled(adapter) && \
         is_multicast_ether_addr(eh->h_dest) && \
         !is_broadcast_ether_addr(eh->h_dest))


#define is_bc_allowed_on_bmc(adapter, eh)	\
	(!is_broadcast_filt_enabled(adapter) && \
         is_broadcast_ether_addr(eh->h_dest))


#define is_arp_allowed_on_bmc(adapter, skb)	\
	(is_arp(skb) && is_arp_filt_enabled(adapter))


#define is_broadcast_packet(eh, adapter)	\
		(is_multicast_ether_addr(eh->h_dest) && \
                !compare_ether_addr(eh->h_dest, adapter->netdev->broadcast))


#define is_arp(skb)	(skb->protocol == htons(ETH_P_ARP))


#define is_arp_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & (BMC_FILT_BROADCAST_ARP))


#define is_dhcp_client_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_CLIENT)


#define is_dhcp_srvr_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_SERVER)


#define is_nbios_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_BROADCAST_NET_BIOS)


#define is_ipv6_na_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask &       \
                        BMC_FILT_MULTICAST_IPV6_NEIGH_ADVER)


#define is_ipv6_ra_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RA)


#define is_ipv6_ras_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RAS)


#define is_broadcast_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_BROADCAST)


#define is_multicast_filt_enabled(adapter)	\
		(adapter->bmc_filt_mask & BMC_FILT_MULTICAST)



static bool be_send_pkt_to_bmc(struct be_adapter *adapter,
			       struct sk_buff **skb)
{
	struct ethhdr *eh = (struct ethhdr *)(*skb)->data;
	bool os2bmc = false;

	if (!be_is_os2bmc_enabled(adapter))
		goto done;

	if (!is_multicast_ether_addr(eh->h_dest))
		goto done;

	if (is_mc_allowed_on_bmc(adapter, eh) ||
	    is_bc_allowed_on_bmc(adapter, eh) ||
	    is_arp_allowed_on_bmc(adapter, (*skb))) {
		os2bmc = true;
		goto done;
	}

	if ((*skb)->protocol == htons(ETH_P_IPV6)) {
		struct ipv6hdr *hdr = ipv6_hdr((*skb));
		u8 nexthdr = hdr->nexthdr;

		if (nexthdr == IPPROTO_ICMPV6) {
			struct icmp6hdr *icmp6 = icmp6_hdr((*skb));

			switch (icmp6->icmp6_type) {
			case NDISC_ROUTER_ADVERTISEMENT:
				os2bmc = is_ipv6_ra_filt_enabled(adapter);
				goto done;
			case NDISC_NEIGHBOUR_ADVERTISEMENT:
				os2bmc = is_ipv6_na_filt_enabled(adapter);
				goto done;
			default:
				break;
			}
		}
	}

	if (is_udp_pkt((*skb))) {
		struct udphdr *udp = udp_hdr((*skb));

		switch (ntohs(udp->dest)) {
		case DHCP_CLIENT_PORT:
			os2bmc = is_dhcp_client_filt_enabled(adapter);
			goto done;
		case DHCP_SERVER_PORT:
			os2bmc = is_dhcp_srvr_filt_enabled(adapter);
			goto done;
		case NET_BIOS_PORT1:
		case NET_BIOS_PORT2:
			os2bmc = is_nbios_filt_enabled(adapter);
			goto done;
		case DHCPV6_RAS_PORT:
			os2bmc = is_ipv6_ras_filt_enabled(adapter);
			goto done;
		default:
			break;
		}
	}
done:
	/* For packets over a vlan, which are destined
         * to BMC, asic expects the vlan to be inline in the packet.
         */
	if (os2bmc)
		*skb = be_insert_vlan_in_pkt(adapter, *skb, NULL);

	return os2bmc;
}

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Venkat Duvvuru
307
100.00%
2
100.00%
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307
100.00%
2
100.00%



static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	u16 q_idx = skb_get_queue_mapping(skb);
	struct be_tx_obj *txo = &adapter->tx_obj[q_idx];
	struct be_wrb_params wrb_params = { 0 };
	bool flush = !skb->xmit_more;
	u16 wrb_cnt;

	skb = be_xmit_workarounds(adapter, skb, &wrb_params);
	if (unlikely(!skb))
		goto drop;

	be_get_wrb_params_from_skb(adapter, skb, &wrb_params);

	wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params);
	if (unlikely(!wrb_cnt)) {
		dev_kfree_skb_any(skb);
		goto drop;
	}

	/* if os2bmc is enabled and if the pkt is destined to bmc,
         * enqueue the pkt a 2nd time with mgmt bit set.
         */
	if (be_send_pkt_to_bmc(adapter, &skb)) {
		BE_WRB_F_SET(wrb_params.features, OS2BMC, 1);
		wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params);
		if (unlikely(!wrb_cnt))
			goto drop;
		else
			skb_get(skb);
	}

	if (be_is_txq_full(txo)) {
		netif_stop_subqueue(netdev, q_idx);
		tx_stats(txo)->tx_stops++;
	}

	if (flush || __netif_subqueue_stopped(netdev, q_idx))
		be_xmit_flush(adapter, txo);

	return NETDEV_TX_OK;
drop:
	tx_stats(txo)->tx_drv_drops++;
	/* Flush the already enqueued tx requests */
	if (flush && txo->pend_wrb_cnt)
		be_xmit_flush(adapter, txo);

	return NETDEV_TX_OK;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
166
63.85%
7
50.00%
Venkat Duvvuru
55
21.15%
1
7.14%
Sriharsha Basavapatna
30
11.54%
2
14.29%
Ajit Khaparde
6
2.31%
2
14.29%
Eric Dumazet
2
0.77%
1
7.14%
Vasundhara Volam
1
0.38%
1
7.14%
Total
260
100.00%
14
100.00%



static inline bool be_in_all_promisc(struct be_adapter *adapter)
{
	return (adapter->if_flags & BE_IF_FLAGS_ALL_PROMISCUOUS) ==
			BE_IF_FLAGS_ALL_PROMISCUOUS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
23
100.00%
1
100.00%
Total
23
100.00%
1
100.00%



static int be_set_vlan_promisc(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	int status;

	if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS)
		return 0;

	status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, ON);
	if (!status) {
		dev_info(dev, "Enabled VLAN promiscuous mode\n");
		adapter->if_flags |= BE_IF_FLAGS_VLAN_PROMISCUOUS;
	} else {
		dev_err(dev, "Failed to enable VLAN promiscuous mode\n");
	}
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
81
100.00%
1
100.00%
Total
81
100.00%
1
100.00%



static int be_clear_vlan_promisc(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	int status;

	status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, OFF);
	if (!status) {
		dev_info(dev, "Disabling VLAN promiscuous mode\n");
		adapter->if_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
	}
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
61
100.00%
1
100.00%
Total
61
100.00%
1
100.00%

/*
 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
 * If the user configures more, place BE in vlan promiscuous mode.
 */


static int be_vid_config(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	u16 vids[BE_NUM_VLANS_SUPPORTED];
	u16 num = 0, i = 0;
	int status = 0;

	/* No need to change the VLAN state if the I/F is in promiscuous */
	if (adapter->netdev->flags & IFF_PROMISC)
		return 0;

	if (adapter->vlans_added > be_max_vlans(adapter))
		return be_set_vlan_promisc(adapter);

	if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) {
		status = be_clear_vlan_promisc(adapter);
		if (status)
			return status;
	}
	/* Construct VLAN Table to give to HW */
	for_each_set_bit(i, adapter->vids, VLAN_N_VID)
		vids[num++] = cpu_to_le16(i);

	status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num, 0);
	if (status) {
		dev_err(dev, "Setting HW VLAN filtering failed\n");
		/* Set to VLAN promisc mode as setting VLAN filter failed */
		if (addl_status(status) == MCC_ADDL_STATUS_INSUFFICIENT_VLANS ||
		    addl_status(status) ==
				MCC_ADDL_STATUS_INSUFFICIENT_RESOURCES)
			return be_set_vlan_promisc(adapter);
	}
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
88
50.57%
7
41.18%
Somnath Kotur
24
13.79%
1
5.88%
Vasundhara Volam
14
8.05%
2
11.76%
Ajit Khaparde
14
8.05%
2
11.76%
Kalesh Purayil
11
6.32%
2
11.76%
Ravikumar Nelavelli
10
5.75%
1
5.88%
Sriharsha Basavapatna
7
4.02%
1
5.88%
Padmanabh Ratnakar
6
3.45%
1
5.88%
Total
174
100.00%
17
100.00%



static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	int status = 0;

	mutex_lock(&adapter->rx_filter_lock);

	/* Packets with VID 0 are always received by Lancer by default */
	if (lancer_chip(adapter) && vid == 0)
		goto done;

	if (test_bit(vid, adapter->vids))
		goto done;

	set_bit(vid, adapter->vids);
	adapter->vlans_added++;

	status = be_vid_config(adapter);
done:
	mutex_unlock(&adapter->rx_filter_lock);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
59
57.28%
5
38.46%
Padmanabh Ratnakar
12
11.65%
1
7.69%
Ravikumar Nelavelli
12
11.65%
1
7.69%
Ajit Khaparde
8
7.77%
2
15.38%
Vasundhara Volam
5
4.85%
1
7.69%
Patrick McHardy
3
2.91%
1
7.69%
Jiri Pirko
2
1.94%
1
7.69%
Somnath Kotur
2
1.94%
1
7.69%
Total
103
100.00%
13
100.00%



static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	int status = 0;

	mutex_lock(&adapter->rx_filter_lock);

	/* Packets with VID 0 are always received by Lancer by default */
	if (lancer_chip(adapter) && vid == 0)
		goto done;

	if (!test_bit(vid, adapter->vids))
		goto done;

	clear_bit(vid, adapter->vids);
	adapter->vlans_added--;

	status = be_vid_config(adapter);
done:
	mutex_unlock(&adapter->rx_filter_lock);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
60
57.69%
2
22.22%
Sriharsha Basavapatna
12
11.54%
1
11.11%
Padmanabh Ratnakar
12
11.54%
1
11.11%
Ravikumar Nelavelli
8
7.69%
1
11.11%
Ajit Khaparde
6
5.77%
1
11.11%
Patrick McHardy
3
2.88%
1
11.11%
Jiri Pirko
2
1.92%
1
11.11%
Kalesh Purayil
1
0.96%
1
11.11%
Total
104
100.00%
9
100.00%



static void be_set_all_promisc(struct be_adapter *adapter)
{
	be_cmd_rx_filter(adapter, BE_IF_FLAGS_ALL_PROMISCUOUS, ON);
	adapter->if_flags |= BE_IF_FLAGS_ALL_PROMISCUOUS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Somnath Kotur
14
53.85%
1
33.33%
Sathya Perla
9
34.62%
1
33.33%
Sriharsha Basavapatna
3
11.54%
1
33.33%
Total
26
100.00%
3
100.00%



static void be_set_mc_promisc(struct be_adapter *adapter)
{
	int status;

	if (adapter->if_flags & BE_IF_FLAGS_MCAST_PROMISCUOUS)
		return;

	status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MCAST_PROMISCUOUS, ON);
	if (!status)
		adapter->if_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
22
48.89%
1
33.33%
Sathya Perla
15
33.33%
1
33.33%
Somnath Kotur
8
17.78%
1
33.33%
Total
45
100.00%
3
100.00%



static void be_set_uc_promisc(struct be_adapter *adapter)
{
	int status;

	if (adapter->if_flags & BE_IF_FLAGS_PROMISCUOUS)
		return;

	status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_PROMISCUOUS, ON);
	if (!status)
		adapter->if_flags |= BE_IF_FLAGS_PROMISCUOUS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
36
80.00%
5
71.43%
Sriharsha Basavapatna
6
13.33%
1
14.29%
Padmanabh Ratnakar
3
6.67%
1
14.29%
Total
45
100.00%
7
100.00%



static void be_clear_uc_promisc(struct be_adapter *adapter)
{
	int status;

	if (!(adapter->if_flags & BE_IF_FLAGS_PROMISCUOUS))
		return;

	status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_PROMISCUOUS, OFF);
	if (!status)
		adapter->if_flags &= ~BE_IF_FLAGS_PROMISCUOUS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
49
100.00%
1
100.00%
Total
49
100.00%
1
100.00%

/* The below 2 functions are the callback args for __dev_mc_sync/dev_uc_sync().
 * We use a single callback function for both sync and unsync. We really don't
 * add/remove addresses through this callback. But, we use it to detect changes
 * to the uc/mc lists. The entire uc/mc list is programmed in be_set_rx_mode().
 */


static int be_uc_list_update(struct net_device *netdev,
			     const unsigned char *addr)
{
	struct be_adapter *adapter = netdev_priv(netdev);

	adapter->update_uc_list = true;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
35
97.22%
1
50.00%
Sathya Perla
1
2.78%
1
50.00%
Total
36
100.00%
2
100.00%



static int be_mc_list_update(struct net_device *netdev,
			     const unsigned char *addr)
{
	struct be_adapter *adapter = netdev_priv(netdev);

	adapter->update_mc_list = true;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
35
97.22%
1
50.00%
Sathya Perla
1
2.78%
1
50.00%
Total
36
100.00%
2
100.00%



static void be_set_mc_list(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	struct netdev_hw_addr *ha;
	bool mc_promisc = false;
	int status;

	netif_addr_lock_bh(netdev);
	__dev_mc_sync(netdev, be_mc_list_update, be_mc_list_update);

	if (netdev->flags & IFF_PROMISC) {
		adapter->update_mc_list = false;
	} else if (netdev->flags & IFF_ALLMULTI ||
		   netdev_mc_count(netdev) > be_max_mc(adapter)) {
		/* Enable multicast promisc if num configured exceeds
                 * what we support
                 */
		mc_promisc = true;
		adapter->update_mc_list = false;
	} else if (adapter->if_flags & BE_IF_FLAGS_MCAST_PROMISCUOUS) {
		/* Update mc-list unconditionally if the iface was previously
                 * in mc-promisc mode and now is out of that mode.
                 */
		adapter->update_mc_list = true;
	}

	if (adapter->update_mc_list) {
		int i = 0;

		/* cache the mc-list in adapter */
		netdev_for_each_mc_addr(ha, netdev) {
			ether_addr_copy(adapter->mc_list[i].mac, ha->addr);
			i++;
		}
		adapter->mc_count = netdev_mc_count(netdev);
	}
	netif_addr_unlock_bh(netdev);

	if (mc_promisc) {
		be_set_mc_promisc(adapter);
	} else if (adapter->update_mc_list) {
		status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MULTICAST, ON);
		if (!status)
			adapter->if_flags &= ~BE_IF_FLAGS_MCAST_PROMISCUOUS;
		else
			be_set_mc_promisc(adapter);

		adapter->update_mc_list = false;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
116
52.02%
1
14.29%
Sathya Perla
107
47.98%
6
85.71%
Total
223
100.00%
7
100.00%



static void be_clear_mc_list(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;

	__dev_mc_unsync(netdev, NULL);
	be_cmd_rx_filter(adapter, BE_IF_FLAGS_MULTICAST, OFF);
	adapter->mc_count = 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
35
83.33%
1
33.33%
Sathya Perla
7
16.67%
2
66.67%
Total
42
100.00%
3
100.00%



static int be_uc_mac_add(struct be_adapter *adapter, int uc_idx)
{
	if (ether_addr_equal(adapter->uc_list[uc_idx].mac, adapter->dev_mac)) {
		adapter->pmac_id[uc_idx + 1] = adapter->pmac_id[0];
		return 0;
	}

	return be_cmd_pmac_add(adapter, adapter->uc_list[uc_idx].mac,
			       adapter->if_handle,
			       &adapter->pmac_id[uc_idx + 1], 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Suresh Reddy
80
95.24%
2
66.67%
Ivan Vecera
4
4.76%
1
33.33%
Total
84
100.00%
3
100.00%



static void be_uc_mac_del(struct be_adapter *adapter, int pmac_id)
{
	if (pmac_id == adapter->pmac_id[0])
		return;

	be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Suresh Reddy
39
100.00%
1
100.00%
Total
39
100.00%
1
100.00%



static void be_set_uc_list(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	struct netdev_hw_addr *ha;
	bool uc_promisc = false;
	int curr_uc_macs = 0, i;

	netif_addr_lock_bh(netdev);
	__dev_uc_sync(netdev, be_uc_list_update, be_uc_list_update);

	if (netdev->flags & IFF_PROMISC) {
		adapter->update_uc_list = false;
	} else if (netdev_uc_count(netdev) > (be_max_uc(adapter) - 1)) {
		uc_promisc = true;
		adapter->update_uc_list = false;
	}  else if (adapter->if_flags & BE_IF_FLAGS_PROMISCUOUS) {
		/* Update uc-list unconditionally if the iface was previously
                 * in uc-promisc mode and now is out of that mode.
                 */
		adapter->update_uc_list = true;
	}

	if (adapter->update_uc_list) {
		/* cache the uc-list in adapter array */
		i = 0;
		netdev_for_each_uc_addr(ha, netdev) {
			ether_addr_copy(adapter->uc_list[i].mac, ha->addr);
			i++;
		}
		curr_uc_macs = netdev_uc_count(netdev);
	}
	netif_addr_unlock_bh(netdev);

	if (uc_promisc) {
		be_set_uc_promisc(adapter);
	} else if (adapter->update_uc_list) {
		be_clear_uc_promisc(adapter);

		for (i = 0; i < adapter->uc_macs; i++)
			be_uc_mac_del(adapter, adapter->pmac_id[i + 1]);

		for (i = 0; i < curr_uc_macs; i++)
			be_uc_mac_add(adapter, i);
		adapter->uc_macs = curr_uc_macs;
		adapter->update_uc_list = false;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
117
46.43%
1
16.67%
Sathya Perla
93
36.90%
2
33.33%
Ajit Khaparde
38
15.08%
1
16.67%
Ivan Vecera
2
0.79%
1
16.67%
Suresh Reddy
2
0.79%
1
16.67%
Total
252
100.00%
6
100.00%



static void be_clear_uc_list(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	int i;

	__dev_uc_unsync(netdev, NULL);
	for (i = 0; i < adapter->uc_macs; i++)
		be_uc_mac_del(adapter, adapter->pmac_id[i + 1]);

	adapter->uc_macs = 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
47
72.31%
4
57.14%
Sriharsha Basavapatna
16
24.62%
1
14.29%
Padmanabh Ratnakar
1
1.54%
1
14.29%
Suresh Reddy
1
1.54%
1
14.29%
Total
65
100.00%
7
100.00%



static void __be_set_rx_mode(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;

	mutex_lock(&adapter->rx_filter_lock);

	if (netdev->flags & IFF_PROMISC) {
		if (!be_in_all_promisc(adapter))
			be_set_all_promisc(adapter);
	} else if (be_in_all_promisc(adapter)) {
		/* We need to re-program the vlan-list or clear
                 * vlan-promisc mode (if needed) when the interface
                 * comes out of promisc mode.
                 */
		be_vid_config(adapter);
	}

	be_set_uc_list(adapter);
	be_set_mc_list(adapter);

	mutex_unlock(&adapter->rx_filter_lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
61
71.76%
2
40.00%
Padmanabh Ratnakar
10
11.76%
1
20.00%
Kalesh Purayil
8
9.41%
1
20.00%
Sriharsha Basavapatna
6
7.06%
1
20.00%
Total
85
100.00%
5
100.00%



static void be_work_set_rx_mode(struct work_struct *work)
{
	struct be_cmd_work *cmd_work =
				container_of(work, struct be_cmd_work, work);

	__be_set_rx_mode(cmd_work->adapter);
	kfree(cmd_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
38
100.00%
2
100.00%
Total
38
100.00%
2
100.00%



static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
	int status;

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
		return -EINVAL;

	/* Proceed further only if user provided MAC is different
         * from active MAC
         */
	if (ether_addr_equal(mac, vf_cfg->mac_addr))
		return 0;

	if (BEx_chip(adapter)) {
		be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
				vf + 1);

		status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
					 &vf_cfg->pmac_id, vf + 1);
	} else {
		status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
					vf + 1);
	}

	if (status) {
		dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed: %#x",
			mac, vf, status);
		return be_cmd_status(status);
	}

	ether_addr_copy(vf_cfg->mac_addr, mac);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sarveshwar Bandi
90
45.23%
1
11.11%
Sathya Perla
35
17.59%
2
22.22%
Padmanabh Ratnakar
30
15.08%
2
22.22%
Ajit Khaparde
16
8.04%
2
22.22%
Vasundhara Volam
15
7.54%
1
11.11%
Kalesh Purayil
13
6.53%
1
11.11%
Total
199
100.00%
9
100.00%



static int be_get_vf_config(struct net_device *netdev, int vf,
			    struct ifla_vf_info *vi)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (vf >= adapter->num_vfs)
		return -EINVAL;

	vi->vf = vf;
	vi->max_tx_rate = vf_cfg->tx_rate;
	vi->min_tx_rate = 0;
	vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
	vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
	memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
	vi->linkstate = adapter->vf_cfg[vf].plink_tracking;
	vi->spoofchk = adapter->vf_cfg[vf].spoofchk;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
92
61.74%
4
50.00%
Sathya Perla
24
16.11%
1
12.50%
Suresh Reddy
13
8.72%
1
12.50%
Kalesh Purayil
13
8.72%
1
12.50%
Sucheta Chakraborty
7
4.70%
1
12.50%
Total
149
100.00%
8
100.00%



static int be_set_vf_tvt(struct be_adapter *adapter, int vf, u16 vlan)
{
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
	u16 vids[BE_NUM_VLANS_SUPPORTED];
	int vf_if_id = vf_cfg->if_handle;
	int status;

	/* Enable Transparent VLAN Tagging */
	status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, vf_if_id, 0, 0);
	if (status)
		return status;

	/* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */
	vids[0] = 0;
	status = be_cmd_vlan_config(adapter, vf_if_id, vids, 1, vf + 1);
	if (!status)
		dev_info(&adapter->pdev->dev,
			 "Cleared guest VLANs on VF%d", vf);

	/* After TVT is enabled, disallow VFs to program VLAN filters */
	if (vf_cfg->privileges & BE_PRIV_FILTMGMT) {
		status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges &
						  ~BE_PRIV_FILTMGMT, vf + 1);
		if (!status)
			vf_cfg->privileges &= ~BE_PRIV_FILTMGMT;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
159
98.76%
1
50.00%
Kalesh Purayil
2
1.24%
1
50.00%
Total
161
100.00%
2
100.00%



static int be_clear_vf_tvt(struct be_adapter *adapter, int vf)
{
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
	struct device *dev = &adapter->pdev->dev;
	int status;

	/* Reset Transparent VLAN Tagging. */
	status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID, vf + 1,
				       vf_cfg->if_handle, 0, 0);
	if (status)
		return status;

	/* Allow VFs to program VLAN filtering */
	if (!(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
		status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges |
						  BE_PRIV_FILTMGMT, vf + 1);
		if (!status) {
			vf_cfg->privileges |= BE_PRIV_FILTMGMT;
			dev_info(dev, "VF%d: FILTMGMT priv enabled", vf);
		}
	}

	dev_info(dev,
		 "Disable/re-enable i/f in VM to clear Transparent VLAN tag");
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
132
98.51%
1
50.00%
Kalesh Purayil
2
1.49%
1
50.00%
Total
134
100.00%
2
100.00%



static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
			  __be16 vlan_proto)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
	int status;

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
		return -EINVAL;

	if (vlan_proto != htons(ETH_P_8021Q))
		return -EPROTONOSUPPORT;

	if (vlan || qos) {
		vlan |= qos << VLAN_PRIO_SHIFT;
		status = be_set_vf_tvt(adapter, vf, vlan);
	} else {
		status = be_clear_vf_tvt(adapter, vf);
	}

	if (status) {
		dev_err(&adapter->pdev->dev,
			"VLAN %d config on VF %d failed : %#x\n", vlan, vf,
			status);
		return be_cmd_status(status);
	}

	vf_cfg->vlan_tag = vlan;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
128
75.29%
3
42.86%
Kalesh Purayil
18
10.59%
1
14.29%
Moshe Shemesh
16
9.41%
1
14.29%
Sathya Perla
5
2.94%
1
14.29%
Vasundhara Volam
3
1.76%
1
14.29%
Total
170
100.00%
7
100.00%



static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
			     int min_tx_rate, int max_tx_rate)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct device *dev = &adapter->pdev->dev;
	int percent_rate, status = 0;
	u16 link_speed = 0;
	u8 link_status;

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (vf >= adapter->num_vfs)
		return -EINVAL;

	if (min_tx_rate)
		return -EINVAL;

	if (!max_tx_rate)
		goto config_qos;

	status = be_cmd_link_status_query(adapter, &link_speed,
					  &link_status, 0);
	if (status)
		goto err;

	if (!link_status) {
		dev_err(dev, "TX-rate setting not allowed when link is down\n");
		status = -ENETDOWN;
		goto err;
	}

	if (max_tx_rate < 100 || max_tx_rate > link_speed) {
		dev_err(dev, "TX-rate must be between 100 and %d Mbps\n",
			link_speed);
		status = -EINVAL;
		goto err;
	}

	/* On Skyhawk the QOS setting must be done only as a % value */
	percent_rate = link_speed / 100;
	if (skyhawk_chip(adapter) && (max_tx_rate % percent_rate)) {
		dev_err(dev, "TX-rate must be a multiple of %d Mbps\n",
			percent_rate);
		status = -EINVAL;
		goto err;
	}

config_qos:
	status = be_cmd_config_qos(adapter, max_tx_rate, link_speed, vf + 1);
	if (status)
		goto err;

	adapter->vf_cfg[vf].tx_rate = max_tx_rate;
	return 0;

err:
	dev_err(dev, "TX-rate setting of %dMbps on VF%d failed\n",
		max_tx_rate, vf);
	return be_cmd_status(status);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ravikumar Nelavelli
144
54.14%
1
11.11%
Ajit Khaparde
96
36.09%
3
33.33%
Sucheta Chakraborty
16
6.02%
1
11.11%
Sathya Perla
6
2.26%
2
22.22%
Kalesh Purayil
4
1.50%
2
22.22%
Total
266
100.00%
9
100.00%



static int be_set_vf_link_state(struct net_device *netdev, int vf,
				int link_state)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	int status;

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (vf >= adapter->num_vfs)
		return -EINVAL;

	status = be_cmd_set_logical_link_config(adapter, link_state, vf+1);
	if (status) {
		dev_err(&adapter->pdev->dev,
			"Link state change on VF %d failed: %#x\n", vf, status);
		return be_cmd_status(status);
	}

	adapter->vf_cfg[vf].plink_tracking = link_state;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Suresh Reddy
84
77.06%
1
50.00%
Kalesh Purayil
25
22.94%
1
50.00%
Total
109
100.00%
2
100.00%



static int be_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
	u8 spoofchk;
	int status;

	if (!sriov_enabled(adapter))
		return -EPERM;

	if (vf >= adapter->num_vfs)
		return -EINVAL;

	if (BEx_chip(adapter))
		return -EOPNOTSUPP;

	if (enable == vf_cfg->spoofchk)
		return 0;

	spoofchk = enable ? ENABLE_MAC_SPOOFCHK : DISABLE_MAC_SPOOFCHK;

	status = be_cmd_set_hsw_config(adapter, 0, vf + 1, vf_cfg->if_handle,
				       0, spoofchk);
	if (status) {
		dev_err(&adapter->pdev->dev,
			"Spoofchk change on VF %d failed: %#x\n", vf, status);
		return be_cmd_status(status);
	}

	vf_cfg->spoofchk = enable;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
158
100.00%
1
100.00%
Total
158
100.00%
1
100.00%



static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
			  ulong now)
{
	aic->rx_pkts_prev = rx_pkts;
	aic->tx_reqs_prev = tx_pkts;
	aic->jiffies = now;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
38
100.00%
1
100.00%
Total
38
100.00%
1
100.00%



static int be_get_new_eqd(struct be_eq_obj *eqo)
{
	struct be_adapter *adapter = eqo->adapter;
	int eqd, start;
	struct be_aic_obj *aic;
	struct be_rx_obj *rxo;
	struct be_tx_obj *txo;
	u64 rx_pkts = 0, tx_pkts = 0;
	ulong now;
	u32 pps, delta;
	int i;

	aic = &adapter->aic_obj[eqo->idx];
	if (!aic->enable) {
		if (aic->jiffies)
			aic->jiffies = 0;
		eqd = aic->et_eqd;
		return eqd;
	}

	for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
		do {
			start = u64_stats_fetch_begin_irq(&rxo->stats.sync);
			rx_pkts += rxo->stats.rx_pkts;
		} while (u64_stats_fetch_retry_irq(&rxo->stats.sync, start));
	}

	for_all_tx_queues_on_eq(adapter, eqo, txo, i) {
		do {
			start = u64_stats_fetch_begin_irq(&txo->stats.sync);
			tx_pkts += txo->stats.tx_reqs;
		} while (u64_stats_fetch_retry_irq(&txo->stats.sync, start));
	}

	/* Skip, if wrapped around or first calculation */
	now = jiffies;
	if (!aic->jiffies || time_before(now, aic->jiffies) ||
	    rx_pkts < aic->rx_pkts_prev ||
	    tx_pkts < aic->tx_reqs_prev) {
		be_aic_update(aic, rx_pkts, tx_pkts, now);
		return aic->prev_eqd;
	}

	delta = jiffies_to_msecs(now - aic->jiffies);
	if (delta == 0)
		return aic->prev_eqd;

	pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
		(((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
	eqd = (pps / 15000) << 2;

	if (eqd < 8)
		eqd = 0;
	eqd = min_t(u32, eqd, aic->max_eqd);
	eqd = max_t(u32, eqd, aic->min_eqd);

	be_aic_update(aic, rx_pkts, tx_pkts, now);

	return eqd;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
299
79.73%
6
60.00%
Padmanabh Ratnakar
67
17.87%
1
10.00%
Eric W. Biedermann
4
1.07%
1
10.00%
Eric Dumazet
4
1.07%
1
10.00%
Stephen Hemminger
1
0.27%
1
10.00%
Total
375
100.00%
10
100.00%

/* For Skyhawk-R only */


static u32 be_get_eq_delay_mult_enc(struct be_eq_obj *eqo)
{
	struct be_adapter *adapter = eqo->adapter;
	struct be_aic_obj *aic = &adapter->aic_obj[eqo->idx];
	ulong now = jiffies;
	int eqd;
	u32 mult_enc;

	if (!aic->enable)
		return 0;

	if (jiffies_to_msecs(now - aic->jiffies) < 1)
		eqd = aic->prev_eqd;
	else
		eqd = be_get_new_eqd(eqo);

	if (eqd > 100)
		mult_enc = R2I_DLY_ENC_1;
	else if (eqd > 60)
		mult_enc = R2I_DLY_ENC_2;
	else if (eqd > 20)
		mult_enc = R2I_DLY_ENC_3;
	else
		mult_enc = R2I_DLY_ENC_0;

	aic->prev_eqd = eqd;

	return mult_enc;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Padmanabh Ratnakar
127
98.45%
1
50.00%
Sathya Perla
2
1.55%
1
50.00%
Total
129
100.00%
2
100.00%



void be_eqd_update(struct be_adapter *adapter, bool force_update)
{
	struct be_set_eqd set_eqd[MAX_EVT_QS];
	struct be_aic_obj *aic;
	struct be_eq_obj *eqo;
	int i, num = 0, eqd;

	for_all_evt_queues(adapter, eqo, i) {
		aic = &adapter->aic_obj[eqo->idx];
		eqd = be_get_new_eqd(eqo);
		if (force_update || eqd != aic->prev_eqd) {
			set_eqd[num].delay_multiplier = (eqd * 65)/100;
			set_eqd[num].eq_id = eqo->q.id;
			aic->prev_eqd = eqd;
			num++;
		}
	}

	if (num)
		be_cmd_modify_eqd(adapter, set_eqd, num);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Padmanabh Ratnakar
70
53.85%
1
20.00%
Sathya Perla
60
46.15%
4
80.00%
Total
130
100.00%
5
100.00%



static void be_rx_stats_update(struct be_rx_obj *rxo,
			       struct be_rx_compl_info *rxcp)
{
	struct be_rx_stats *stats = rx_stats(rxo);

	u64_stats_update_begin(&stats->sync);
	stats->rx_compl++;
	stats->rx_bytes += rxcp->pkt_size;
	stats->rx_pkts++;
	if (rxcp->tunneled)
		stats->rx_vxlan_offload_pkts++;
	if (rxcp->pkt_type == BE_MULTICAST_PACKET)
		stats->rx_mcast_pkts++;
	if (rxcp->err)
		stats->rx_compl_err++;
	u64_stats_update_end(&stats->sync);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
70
73.68%
5
62.50%
Ajit Khaparde
14
14.74%
2
25.00%
Sriharsha Basavapatna
11
11.58%
1
12.50%
Total
95
100.00%
8
100.00%



static inline bool csum_passed(struct be_rx_compl_info *rxcp)
{
	/* L4 checksum is not reliable for non TCP/UDP packets.
         * Also ignore ipcksm for ipv6 pkts
         */
	return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
		(rxcp->ip_csum || rxcp->ipv6) && !rxcp->err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
19
44.19%
2
40.00%
Ajit Khaparde
14
32.56%
1
20.00%
Padmanabh Ratnakar
6
13.95%
1
20.00%
Somnath Kotur
4
9.30%
1
20.00%
Total
43
100.00%
5
100.00%



static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo)
{
	struct be_adapter *adapter = rxo->adapter;
	struct be_rx_page_info *rx_page_info;
	struct be_queue_info *rxq = &rxo->q;
	u32 frag_idx = rxq->tail;

	rx_page_info = &rxo->page_info_tbl[frag_idx];
	BUG_ON(!rx_page_info->page);

	if (rx_page_info->last_frag) {
		dma_unmap_page(&adapter->pdev->dev,
			       dma_unmap_addr(rx_page_info, bus),
			       adapter->big_page_size, DMA_FROM_DEVICE);
		rx_page_info->last_frag = false;
	} else {
		dma_sync_single_for_cpu(&adapter->pdev->dev,
					dma_unmap_addr(rx_page_info, bus),
					rx_frag_size, DMA_FROM_DEVICE);
	}

	queue_tail_inc(rxq);
	atomic_dec(&rxq->used);
	return rx_page_info;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
114
82.01%
4
44.44%
Suresh Reddy
11
7.91%
1
11.11%
Ajit Khaparde
8
5.76%
2
22.22%
Ivan Vecera
5
3.60%
1
11.11%
FUJITA Tomonori
1
0.72%
1
11.11%
Total
139
100.00%
9
100.00%

/* Throwaway the data in the Rx completion */


static void be_rx_compl_discard(struct be_rx_obj *rxo,
				struct be_rx_compl_info *rxcp)
{
	struct be_rx_page_info *page_info;
	u16 i, num_rcvd = rxcp->num_rcvd;

	for (i = 0; i < num_rcvd; i++) {
		page_info = get_rx_page_info(rxo);
		put_page(page_info->page);
		memset(page_info, 0, sizeof(*page_info));
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
72
100.00%
3
100.00%
Total
72
100.00%
3
100.00%

/*
 * skb_fill_rx_data forms a complete skb for an ether frame
 * indicated by rxcp.
 */


static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
			     struct be_rx_compl_info *rxcp)
{
	struct be_rx_page_info *page_info;
	u16 i, j;
	u16 hdr_len, curr_frag_len, remaining;
	u8 *start;

	page_info = get_rx_page_info(rxo);
	start = page_address(page_info->page) + page_info->page_offset;
	prefetch(start);

	/* Copy data in the first descriptor of this completion */
	curr_frag_len = min(rxcp->pkt_size, rx_frag_size);

	skb->len = curr_frag_len;
	if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
		memcpy(skb->data, start, curr_frag_len);
		/* Complete packet has now been moved to data */
		put_page(page_info->page);
		skb->data_len = 0;
		skb->tail += curr_frag_len;
	} else {
		hdr_len = ETH_HLEN;
		memcpy(skb->data, start, hdr_len);
		skb_shinfo(skb)->nr_frags = 1;
		skb_frag_set_page(skb, 0, page_info->page);
		skb_shinfo(skb)->frags[0].page_offset =
					page_info->page_offset + hdr_len;
		skb_frag_size_set(&skb_shinfo(skb)->frags[0],
				  curr_frag_len - hdr_len);
		skb->data_len = curr_frag_len - hdr_len;
		skb->truesize += rx_frag_size;
		skb->tail += hdr_len;
	}
	page_info->page = NULL;

	if (rxcp->pkt_size <= rx_frag_size) {
		BUG_ON(rxcp->num_rcvd != 1);
		return;
	}

	/* More frags present for this completion */
	remaining = rxcp->pkt_size - curr_frag_len;
	for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
		page_info = get_rx_page_info(rxo);
		curr_frag_len = min(remaining, rx_frag_size);

		/* Coalesce all frags from the same physical page in one slot */
		if (page_info->page_offset == 0) {
			/* Fresh page */
			j++;
			skb_frag_set_page(skb, j, page_info->page);
			skb_shinfo(skb)->frags[j].page_offset =
							page_info->page_offset;
			skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
			skb_shinfo(skb)->nr_frags++;
		} else {
			put_page(page_info->page);
		}

		skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
		skb->len += curr_frag_len;
		skb->data_len += curr_frag_len;
		skb->truesize += rx_frag_size;
		remaining -= curr_frag_len;
		page_info->page = NULL;
	}
	BUG_ON(j > MAX_SKB_FRAGS);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
290
69.38%
3
30.00%
Ajit Khaparde
67
16.03%
3
30.00%
Eric Dumazet
53
12.68%
3
30.00%
Ian Campbell
8
1.91%
1
10.00%
Total
418
100.00%
10
100.00%

/* Process the RX completion indicated by rxcp when GRO is disabled */


static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
				struct be_rx_compl_info *rxcp)
{
	struct be_adapter *adapter = rxo->adapter;
	struct net_device *netdev = adapter->netdev;
	struct sk_buff *skb;

	skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
	if (unlikely(!skb)) {
		rx_stats(rxo)->rx_drops_no_skbs++;
		be_rx_compl_discard(rxo, rxcp);
		return;
	}

	skb_fill_rx_data(rxo, skb, rxcp);

	if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
		skb->ip_summed = CHECKSUM_UNNECESSARY;
	else
		skb_checksum_none_assert(skb);

	skb->protocol = eth_type_trans(skb, netdev);
	skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
	if (netdev->features & NETIF_F_RXHASH)
		skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);

	skb->csum_level = rxcp->tunneled;
	skb_mark_napi_id(skb, napi);

	if (rxcp->vlanf)
		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);

	netif_receive_skb(skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
123
60.59%
8
33.33%
Somnath Kotur
28
13.79%
3
12.50%
Ajit Khaparde
19
9.36%
5
20.83%
Michał Mirosław
15
7.39%
1
4.17%
Tom Herbert
7
3.45%
2
8.33%
Eric Dumazet
6
2.96%
4
16.67%
Patrick McHardy
5
2.46%
1
4.17%
Total
203
100.00%
24
100.00%

/* Process the RX completion indicated by rxcp when GRO is enabled */


static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
				    struct napi_struct *napi,
				    struct be_rx_compl_info *rxcp)
{
	struct be_adapter *adapter = rxo->adapter;
	struct be_rx_page_info *page_info;
	struct sk_buff *skb = NULL;
	u16 remaining, curr_frag_len;
	u16 i, j;

	skb = napi_get_frags(napi);
	if (!skb) {
		be_rx_compl_discard(rxo, rxcp);
		return;
	}

	remaining = rxcp->pkt_size;
	for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
		page_info = get_rx_page_info(rxo);

		curr_frag_len = min(remaining, rx_frag_size);

		/* Coalesce all frags from the same physical page in one slot */
		if (i == 0 || page_info->page_offset == 0) {
			/* First frag or Fresh page */
			j++;
			skb_frag_set_page(skb, j, page_info->page);
			skb_shinfo(skb)->frags[j].page_offset =
							page_info->page_offset;
			skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
		} else {
			put_page(page_info->page);
		}
		skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
		skb->truesize += rx_frag_size;
		remaining -= curr_frag_len;
		memset(page_info, 0, sizeof(*page_info));
	}
	BUG_ON(j > MAX_SKB_FRAGS);

	skb_shinfo(skb)->nr_frags = j + 1;
	skb->len = rxcp->pkt_size;
	skb->data_len = rxcp->pkt_size;
	skb->ip_summed = CHECKSUM_UNNECESSARY;
	skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
	if (adapter->netdev->features & NETIF_F_RXHASH)
		skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3);

	skb->csum_level = rxcp->tunneled;

	if (rxcp->vlanf)
		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);

	napi_gro_frags(napi);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
163
48.22%
5
26.32%
Ajit Khaparde
127
37.57%
6
31.58%
Eric Dumazet
16
4.73%
2
10.53%
Somnath Kotur
15
4.44%
1
5.26%
Tom Herbert
7
2.07%
2
10.53%
Patrick McHardy
5
1.48%
1
5.26%
Ian Campbell
4
1.18%
1
5.26%
Jingoo Han
1
0.30%
1
5.26%
Total
338
100.00%
19
100.00%



static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
				 struct be_rx_compl_info *rxcp)
{
	rxcp->pkt_size = GET_RX_COMPL_V1_BITS(pktsize, compl);
	rxcp->vlanf = GET_RX_COMPL_V1_BITS(vtp, compl);
	rxcp->err = GET_RX_COMPL_V1_BITS(err, compl);
	rxcp->tcpf = GET_RX_COMPL_V1_BITS(tcpf, compl);
	rxcp->udpf = GET_RX_COMPL_V1_BITS(udpf, compl);
	rxcp->ip_csum = GET_RX_COMPL_V1_BITS(ipcksm, compl);
	rxcp->l4_csum = GET_RX_COMPL_V1_BITS(l4_cksm, compl);
	rxcp->ipv6 = GET_RX_COMPL_V1_BITS(ip_version, compl);
	rxcp->num_rcvd = GET_RX_COMPL_V1_BITS(numfrags, compl);
	rxcp->pkt_type = GET_RX_COMPL_V1_BITS(cast_enc, compl);
	rxcp->rss_hash = GET_RX_COMPL_V1_BITS(rsshash, compl);
	if (rxcp->vlanf) {
		rxcp->qnq = GET_RX_COMPL_V1_BITS(qnq, compl);
		rxcp->vlan_tag = GET_RX_COMPL_V1_BITS(vlan_tag, compl);
	}
	rxcp->port = GET_RX_COMPL_V1_BITS(port, compl);
	rxcp->tunneled =
		GET_RX_COMPL_V1_BITS(tunneled, compl);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
166
87.83%
7
58.33%
Padmanabh Ratnakar
10
5.29%
1
8.33%
Ajit Khaparde
9
4.76%
1
8.33%
Vasundhara Volam
2
1.06%
1
8.33%
Somnath Kotur
1
0.53%
1
8.33%
Sarveshwar Bandi
1
0.53%
1
8.33%
Total
189
100.00%
12
100.00%



static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
				 struct be_rx_compl_info *rxcp)
{
	rxcp->pkt_size = GET_RX_COMPL_V0_BITS(pktsize, compl);
	rxcp->vlanf = GET_RX_COMPL_V0_BITS(vtp, compl);
	rxcp->err = GET_RX_COMPL_V0_BITS(err, compl);
	rxcp->tcpf = GET_RX_COMPL_V0_BITS(tcpf, compl);
	rxcp->udpf = GET_RX_COMPL_V0_BITS(udpf, compl);
	rxcp->ip_csum = GET_RX_COMPL_V0_BITS(ipcksm, compl);
	rxcp->l4_csum = GET_RX_COMPL_V0_BITS(l4_cksm, compl);
	rxcp->ipv6 = GET_RX_COMPL_V0_BITS(ip_version, compl);
	rxcp->num_rcvd = GET_RX_COMPL_V0_BITS(numfrags, compl);
	rxcp->pkt_type = GET_RX_COMPL_V0_BITS(cast_enc, compl);
	rxcp->rss_hash = GET_RX_COMPL_V0_BITS(rsshash, compl);
	if (rxcp->vlanf) {
		rxcp->qnq = GET_RX_COMPL_V0_BITS(qnq, compl);
		rxcp->vlan_tag = GET_RX_COMPL_V0_BITS(vlan_tag, compl);
	}
	rxcp->port = GET_RX_COMPL_V0_BITS(port, compl);
	rxcp->ip_frag = GET_RX_COMPL_V0_BITS(ip_frag, compl);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
156
82.54%
5
45.45%
Somnath Kotur
11
5.82%
2
18.18%
Padmanabh Ratnakar
10
5.29%
1
9.09%
Ajit Khaparde
9
4.76%
1
9.09%
Vasundhara Volam
2
1.06%
1
9.09%
Sarveshwar Bandi
1
0.53%
1
9.09%
Total
189
100.00%
11
100.00%



static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
{
	struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
	struct be_rx_compl_info *rxcp = &rxo->rxcp;
	struct be_adapter *adapter = rxo->adapter;

	/* For checking the valid bit it is Ok to use either definition as the
         * valid bit is at the same position in both v0 and v1 Rx compl */
	if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
		return NULL;

	rmb();
	be_dws_le_to_cpu(compl, sizeof(*compl));

	if (adapter->be3_native)
		be_parse_rx_compl_v1(compl, rxcp);
	else
		be_parse_rx_compl_v0(compl, rxcp);

	if (rxcp->ip_frag)
		rxcp->l4_csum = 0;

	if (rxcp->vlanf) {
		/* In QNQ modes, if qnq bit is not set, then the packet was
                 * tagged only with the transparent outer vlan-tag and must
                 * not be treated as a vlan packet by host
                 */
		if (be_is_qnq_mode(adapter) && !rxcp->qnq)
			rxcp->vlanf = 0;

		if (!lancer_chip(adapter))
			rxcp->vlan_tag = swab16(rxcp->vlan_tag);

		if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
		    !test_bit(rxcp->vlan_tag, adapter->vids))
			rxcp->vlanf = 0;
	}

	/* As the compl has been parsed, reset it; we wont touch it again */
	compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;

	queue_tail_inc(&rxo->cq);
	return rxcp;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
190
85.59%
6
60.00%
Somnath Kotur
20
9.01%
2
20.00%
Ravikumar Nelavelli
7
3.15%
1
10.00%
Vasundhara Volam
5
2.25%
1
10.00%
Total
222
100.00%
10
100.00%



static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
{
	u32 order = get_order(size);

	if (order > 0)
		gfp |= __GFP_COMP;
	return  alloc_pages(gfp, order);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
36
87.80%
1
50.00%
Eric Dumazet
5
12.20%
1
50.00%
Total
41
100.00%
2
100.00%

/*
 * Allocate a page, split it to fragments of size rx_frag_size and post as
 * receive buffers to BE
 */


static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed)
{
	struct be_adapter *adapter = rxo->adapter;
	struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
	struct be_queue_info *rxq = &rxo->q;
	struct page *pagep = NULL;
	struct device *dev = &adapter->pdev->dev;
	struct be_eth_rx_d *rxd;
	u64 page_dmaaddr = 0, frag_dmaaddr;
	u32 posted, page_offset = 0, notify = 0;

	page_info = &rxo->page_info_tbl[rxq->head];
	for (posted = 0; posted < frags_needed && !page_info->page; posted++) {
		if (!pagep) {
			pagep = be_alloc_pages(adapter->big_page_size, gfp);
			if (unlikely(!pagep)) {
				rx_stats(rxo)->rx_post_fail++;
				break;
			}
			page_dmaaddr = dma_map_page(dev, pagep, 0,
						    adapter->big_page_size,
						    DMA_FROM_DEVICE);
			if (dma_mapping_error(dev, page_dmaaddr)) {
				put_page(pagep);
				pagep = NULL;
				adapter->drv_stats.dma_map_errors++;
				break;
			}
			page_offset = 0;
		} else {
			get_page(pagep);
			page_offset += rx_frag_size;
		}
		page_info->page_offset = page_offset;
		page_info->page = pagep;

		rxd = queue_head_node(rxq);
		frag_dmaaddr = page_dmaaddr + page_info->page_offset;
		rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
		rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));

		/* Any space left in the current big page for another frag? */
		if ((page_offset + rx_frag_size + rx_frag_size) >
					adapter->big_page_size) {
			pagep = NULL;
			page_info->last_frag = true;
			dma_unmap_addr_set(page_info, bus, page_dmaaddr);
		} else {
			dma_unmap_addr_set(page_info, bus, frag_dmaaddr);
		}

		prev_page_info = page_info;
		queue_head_inc(rxq);
		page_info = &rxo->page_info_tbl[rxq->head];
	}

	/* Mark the last frag of a page when we break out of the above loop
         * with no more slots available in the RXQ
         */
	if (pagep) {
		prev_page_info->last_frag = true;
		dma_unmap_addr_set(prev_page_info, bus, page_dmaaddr);
	}

	if (posted) {
		atomic_add(posted, &rxq->used);
		if (rxo->rx_post_starved)
			rxo->rx_post_starved = false;
		do {
			notify = min(MAX_NUM_POST_ERX_DB, posted);
			be_rxq_notify(adapter, rxq->id, notify);
			posted -= notify;
		} while (posted);
	} else if (atomic_read(&rxq->used) == 0) {
		/* Let be_worker replenish when memory is available */
		rxo->rx_post_starved = true;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
365
82.39%
8
57.14%
Ivan Vecera
39
8.80%
2
14.29%
Ajit Khaparde
30
6.77%
2
14.29%
Eric Dumazet
5
1.13%
1
7.14%
Vasundhara Volam
4
0.90%
1
7.14%
Total
443
100.00%
14
100.00%



static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
{
	struct be_queue_info *tx_cq = &txo->cq;
	struct be_tx_compl_info *txcp = &txo->txcp;
	struct be_eth_tx_compl *compl = queue_tail_node(tx_cq);

	if (compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
		return NULL;

	/* Ensure load ordering of valid bit dword and other dwords below */
	rmb();
	be_dws_le_to_cpu(compl, sizeof(*compl));

	txcp->status = GET_TX_COMPL_BITS(status, compl);
	txcp->end_index = GET_TX_COMPL_BITS(wrb_index, compl);

	compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
	queue_tail_inc(tx_cq);
	return txcp;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
77
60.63%
3
75.00%
Sriharsha Basavapatna
50
39.37%
1
25.00%
Total
127
100.00%
4
100.00%



static u16 be_tx_compl_process(struct be_adapter *adapter,
			       struct be_tx_obj *txo, u16 last_index)
{
	struct sk_buff **sent_skbs = txo->sent_skb_list;
	struct be_queue_info *txq = &txo->q;
	struct sk_buff *skb = NULL;
	bool unmap_skb_hdr = false;
	struct be_eth_wrb *wrb;
	u16 num_wrbs = 0;
	u32 frag_index;

	do {
		if (sent_skbs[txq->tail]) {
			/* Free skb from prev req */
			if (skb)
				dev_consume_skb_any(skb);
			skb = sent_skbs[txq->tail];
			sent_skbs[txq->tail] = NULL;
			queue_tail_inc(txq);  /* skip hdr wrb */
			num_wrbs++;
			unmap_skb_hdr = true;
		}
		wrb = queue_tail_node(txq);
		frag_index = txq->tail;
		unmap_tx_frag(&adapter->pdev->dev, wrb,
			      (unmap_skb_hdr && skb_headlen(skb)));
		unmap_skb_hdr = false;
		queue_tail_inc(txq);
		num_wrbs++;
	} while (frag_index != last_index);
	dev_consume_skb_any(skb);

	return num_wrbs;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
139
77.22%
4
36.36%
Alexander Duyck
17
9.44%
1
9.09%
Ajit Khaparde
13
7.22%
2
18.18%
Padmanabh Ratnakar
4
2.22%
1
9.09%
Eric Dumazet
3
1.67%
1
9.09%
Ivan Vecera
3
1.67%
1
9.09%
Rick Jones
1
0.56%
1
9.09%
Total
180
100.00%
11
100.00%

/* Return the number of events in the event queue */


static inline int events_get(struct be_eq_obj *eqo)
{
	struct be_eq_entry *eqe;
	int num = 0;

	do {
		eqe = queue_tail_node(&eqo->q);
		if (eqe->evt == 0)
			break;

		rmb();
		eqe->evt = 0;
		num++;
		queue_tail_inc(&eqo->q);
	} while (true);

	return num;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
72
100.00%
3
100.00%
Total
72
100.00%
3
100.00%

/* Leaves the EQ is disarmed state */


static void be_eq_clean(struct be_eq_obj *eqo)
{
	int num = events_get(eqo);

	be_eq_notify(eqo->adapter, eqo->q.id, false, true, num, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
38
95.00%
2
66.67%
Padmanabh Ratnakar
2
5.00%
1
33.33%
Total
40
100.00%
3
100.00%

/* Free posted rx buffers that were not used */


static void be_rxq_clean(struct be_rx_obj *rxo)
{
	struct be_queue_info *rxq = &rxo->q;
	struct be_rx_page_info *page_info;

	while (atomic_read(&rxq->used) > 0) {
		page_info = get_rx_page_info(rxo);
		put_page(page_info->page);
		memset(page_info, 0, sizeof(*page_info));
	}
	BUG_ON(atomic_read(&rxq->used));
	rxq->tail = 0;
	rxq->head = 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
70
77.78%
1
33.33%
Sathya Perla
20
22.22%
2
66.67%
Total
90
100.00%
3
100.00%



static void be_rx_cq_clean(struct be_rx_obj *rxo)
{
	struct be_queue_info *rx_cq = &rxo->cq;
	struct be_rx_compl_info *rxcp;
	struct be_adapter *adapter = rxo->adapter;
	int flush_wait = 0;

	/* Consume pending rx completions.
         * Wait for the flush completion (identified by zero num_rcvd)
         * to arrive. Notify CQ even when there are no more CQ entries
         * for HW to flush partially coalesced CQ entries.
         * In Lancer, there is no need to wait for flush compl.
         */
	for (;;) {
		rxcp = be_rx_compl_get(rxo);
		if (!rxcp) {
			if (lancer_chip(adapter))
				break;

			if (flush_wait++ > 50 ||
			    be_check_error(adapter,
					   BE_ERROR_HW)) {
				dev_warn(&adapter->pdev->dev,
					 "did not receive flush compl\n");
				break;
			}
			be_cq_notify(adapter, rx_cq->id, true, 0);
			mdelay(1);
		} else {
			be_rx_compl_discard(rxo, rxcp);
			be_cq_notify(adapter, rx_cq->id, false, 1);
			if (rxcp->num_rcvd == 0)
				break;
		}
	}

	/* After cleanup, leave the CQ in unarmed state */
	be_cq_notify(adapter, rx_cq->id, false, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
147
90.18%
5
62.50%
Kalesh Purayil
12
7.36%
2
25.00%
Venkat Duvvuru
4
2.45%
1
12.50%
Total
163
100.00%
8
100.00%



static void be_tx_compl_clean(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	u16 cmpl = 0, timeo = 0, num_wrbs = 0;
	struct be_tx_compl_info *txcp;
	struct be_queue_info *txq;
	u32 end_idx, notified_idx;
	struct be_tx_obj *txo;
	int i, pending_txqs;

	/* Stop polling for compls when HW has been silent for 10ms */
	do {
		pending_txqs = adapter->num_tx_qs;

		for_all_tx_queues(adapter, txo, i) {
			cmpl = 0;
			num_wrbs = 0;
			txq = &txo->q;
			while ((txcp = be_tx_compl_get(txo))) {
				num_wrbs +=
					be_tx_compl_process(adapter, txo,
							    txcp->end_index);
				cmpl++;
			}
			if (cmpl) {
				be_cq_notify(adapter, txo->cq.id, false, cmpl);
				atomic_sub(num_wrbs, &txq->used);
				timeo = 0;
			}
			if (!be_is_tx_compl_pending(txo))
				pending_txqs--;
		}

		if (pending_txqs == 0 || ++timeo > 10 ||
		    be_check_error(adapter, BE_ERROR_HW))
			break;

		mdelay(1);
	} while (true);

	/* Free enqueued TX that was never notified to HW */
	for_all_tx_queues(adapter, txo, i) {
		txq = &txo->q;

		if (atomic_read(&txq->used)) {
			dev_info(dev, "txq%d: cleaning %d pending tx-wrbs\n",
				 i, atomic_read(&txq->used));
			notified_idx = txq->tail;
			end_idx = txq->tail;
			index_adv(&end_idx, atomic_read(&txq->used) - 1,
				  txq->len);
			/* Use the tx-compl process logic to handle requests
                         * that were not sent to the HW.
                         */
			num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
			atomic_sub(num_wrbs, &txq->used);
			BUG_ON(atomic_read(&txq->used));
			txo->pend_wrb_cnt = 0;
			/* Since hw was never notified of these requests,
                         * reset TXQ indices
                         */
			txq->head = notified_idx;
			txq->tail = notified_idx;
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
255
77.04%
6
50.00%
Padmanabh Ratnakar
31
9.37%
1
8.33%
Ajit Khaparde
17
5.14%
1
8.33%
Vasundhara Volam
15
4.53%
1
8.33%
Sriharsha Basavapatna
10
3.02%
2
16.67%
Venkat Duvvuru
3
0.91%
1
8.33%
Total
331
100.00%
12
100.00%



static void be_evt_queues_destroy(struct be_adapter *adapter)
{
	struct be_eq_obj *eqo;
	int i;

	for_all_evt_queues(adapter, eqo, i) {
		if (eqo->q.created) {
			be_eq_clean(eqo);
			be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
			netif_napi_del(&eqo->napi);
			free_cpumask_var(eqo->affinity_mask);
		}
		be_queue_free(adapter, &eqo->q);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
67
82.72%
4
57.14%
Padmanabh Ratnakar
13
16.05%
2
28.57%
Kalesh Purayil
1
1.23%
1
14.29%
Total
81
100.00%
7
100.00%



static int be_evt_queues_create(struct be_adapter *adapter)
{
	struct be_queue_info *eq;
	struct be_eq_obj *eqo;
	struct be_aic_obj *aic;
	int i, rc;

	/* need enough EQs to service both RX and TX queues */
	adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
				    max(adapter->cfg_num_rx_irqs,
					adapter->cfg_num_tx_irqs));

	for_all_evt_queues(adapter, eqo, i) {
		int numa_node = dev_to_node(&adapter->pdev->dev);

		aic = &adapter->aic_obj[i];
		eqo->adapter = adapter;
		eqo->idx = i;
		aic->max_eqd = BE_MAX_EQD;
		aic->enable = true;

		eq = &eqo->q;
		rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
				    sizeof(struct be_eq_entry));
		if (rc)
			return rc;

		rc = be_cmd_eq_create(adapter, eqo);
		if (rc)
			return rc;

		if (!zalloc_cpumask_var(&eqo->affinity_mask, GFP_KERNEL))
			return -ENOMEM;
		cpumask_set_cpu(cpumask_local_spread(i, numa_node),
				eqo->affinity_mask);
		netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
			       BE_NAPI_WEIGHT);
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
153
72.51%
8
80.00%
Kalesh Purayil
45
21.33%
1
10.00%
Rusty Russell
13
6.16%
1
10.00%
Total
211
100.00%
10
100.00%



static void be_mcc_queues_destroy(struct be_adapter *adapter)
{
	struct be_queue_info *q;

	q = &adapter->mcc_obj.q;
	if (q->created)
		be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
	be_queue_free(adapter, q);

	q = &adapter->mcc_obj.cq;
	if (q->created)
		be_cmd_q_destroy(adapter, q, QTYPE_CQ);
	be_queue_free(adapter, q);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
78
100.00%
1
100.00%
Total
78
100.00%
1
100.00%

/* Must be called only after TX qs are created as MCC shares TX EQ */


static int be_mcc_queues_create(struct be_adapter *adapter)
{
	struct be_queue_info *q, *cq;

	cq = &adapter->mcc_obj.cq;
	if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
			   sizeof(struct be_mcc_compl)))
		goto err;

	/* Use the default EQ for MCC completions */
	if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
		goto mcc_cq_free;

	q = &adapter->mcc_obj.q;
	if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
		goto mcc_cq_destroy;

	if (be_cmd_mccq_create(adapter, q, cq))
		goto mcc_q_free;

	return 0;

mcc_q_free:
	be_queue_free(adapter, q);
mcc_cq_destroy:
	be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
mcc_cq_free:
	be_queue_free(adapter, cq);
err:
	return -1;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
154
100.00%
3
100.00%
Total
154
100.00%
3
100.00%



static void be_tx_queues_destroy(struct be_adapter *adapter)
{
	struct be_queue_info *q;
	struct be_tx_obj *txo;
	u8 i;

	for_all_tx_queues(adapter, txo, i) {
		q = &txo->q;
		if (q->created)
			be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
		be_queue_free(adapter, q);

		q = &txo->cq;
		if (q->created)
			be_cmd_q_destroy(adapter, q, QTYPE_CQ);
		be_queue_free(adapter, q);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
92
100.00%
2
100.00%
Total
92
100.00%
2
100.00%



static int be_tx_qs_create(struct be_adapter *adapter)
{
	struct be_queue_info *cq;
	struct be_tx_obj *txo;
	struct be_eq_obj *eqo;
	int status, i;

	adapter->num_tx_qs = min(adapter->num_evt_qs, adapter->cfg_num_tx_irqs);

	for_all_tx_queues(adapter, txo, i) {
		cq = &txo->cq;
		status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
					sizeof(struct be_eth_tx_compl));
		if (status)
			return status;

		u64_stats_init(&txo->stats.sync);
		u64_stats_init(&txo->stats.sync_compl);

		/* If num_evt_qs is less than num_tx_qs, then more than
                 * one txq share an eq
                 */
		eqo = &adapter->eq_obj[i % adapter->num_evt_qs];
		status = be_cmd_cq_create(adapter, cq, &eqo->q, false, 3);
		if (status)
			return status;

		status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
					sizeof(struct be_eth_wrb));
		if (status)
			return status;

		status = be_cmd_txq_create(adapter, txo);
		if (status)
			return status;

		netif_set_xps_queue(adapter->netdev, eqo->affinity_mask,
				    eqo->idx);
	}

	dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
		 adapter->num_tx_qs);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
204
91.07%
10
90.91%
John Stultz
20
8.93%
1
9.09%
Total
224
100.00%
11
100.00%



static void be_rx_cqs_destroy(struct be_adapter *adapter)
{
	struct be_queue_info *q;
	struct be_rx_obj *rxo;
	int i;

	for_all_rx_queues(adapter, rxo, i) {
		q = &rxo->cq;
		if (q->created)
			be_cmd_q_destroy(adapter, q, QTYPE_CQ);
		be_queue_free(adapter, q);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
63
100.00%
3
100.00%
Total
63
100.00%
3
100.00%



static int be_rx_cqs_create(struct be_adapter *adapter)
{
	struct be_queue_info *eq, *cq;
	struct be_rx_obj *rxo;
	int rc, i;

	adapter->num_rss_qs =
			min(adapter->num_evt_qs, adapter->cfg_num_rx_irqs);

	/* We'll use RSS only if atleast 2 RSS rings are supported. */
	if (adapter->num_rss_qs < 2)
		adapter->num_rss_qs = 0;

	adapter->num_rx_qs = adapter->num_rss_qs + adapter->need_def_rxq;

	/* When the interface is not capable of RSS rings (and there is no
         * need to create a default RXQ) we'll still need one RXQ
         */
	if (adapter->num_rx_qs == 0)
		adapter->num_rx_qs = 1;

	adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
	for_all_rx_queues(adapter, rxo, i) {
		rxo->adapter = adapter;
		cq = &rxo->cq;
		rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
				    sizeof(struct be_eth_rx_compl));
		if (rc)
			return rc;

		u64_stats_init(&rxo->stats.sync);
		eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
		rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
		if (rc)
			return rc;
	}

	dev_info(&adapter->pdev->dev,
		 "created %d RX queue(s)\n", adapter->num_rx_qs);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
172
80.00%
9
81.82%
Vasundhara Volam
33
15.35%
1
9.09%
John Stultz
10
4.65%
1
9.09%
Total
215
100.00%
11
100.00%



static irqreturn_t be_intx(int irq, void *dev)
{
	struct be_eq_obj *eqo = dev;
	struct be_adapter *adapter = eqo->adapter;
	int num_evts = 0;

	/* IRQ is not expected when NAPI is scheduled as the EQ
         * will not be armed.
         * But, this can happen on Lancer INTx where it takes
         * a while to de-assert INTx or in BE2 where occasionaly
         * an interrupt may be raised even when EQ is unarmed.
         * If NAPI is already scheduled, then counting & notifying
         * events will orphan them.
         */
	if (napi_schedule_prep(&eqo->napi)) {
		num_evts = events_get(eqo);
		__napi_schedule(&eqo->napi);
		if (num_evts)
			eqo->spurious_intr = 0;
	}
	be_eq_notify(adapter, eqo->q.id, false, true, num_evts, 0);

	/* Return IRQ_HANDLED only for the the first spurious intr
         * after a valid intr to stop the kernel from branding
         * this irq as a bad one!
         */
	if (num_evts || eqo->spurious_intr++ == 0)
		return IRQ_HANDLED;
	else
		return IRQ_NONE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
108
98.18%
4
80.00%
Padmanabh Ratnakar
2
1.82%
1
20.00%
Total
110
100.00%
5
100.00%



static irqreturn_t be_msix(int irq, void *dev)
{
	struct be_eq_obj *eqo = dev;

	be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0);
	napi_schedule(&eqo->napi);
	return IRQ_HANDLED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
50
96.15%
3
75.00%
Padmanabh Ratnakar
2
3.85%
1
25.00%
Total
52
100.00%
4
100.00%



static inline bool do_gro(struct be_rx_compl_info *rxcp)
{
	return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
23
71.88%
2
50.00%
Ajit Khaparde
5
15.62%
1
25.00%
Somnath Kotur
4
12.50%
1
25.00%
Total
32
100.00%
4
100.00%



static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
			 int budget)
{
	struct be_adapter *adapter = rxo->adapter;
	struct be_queue_info *rx_cq = &rxo->cq;
	struct be_rx_compl_info *rxcp;
	u32 work_done;
	u32 frags_consumed = 0;

	for (work_done = 0; work_done < budget; work_done++) {
		rxcp = be_rx_compl_get(rxo);
		if (!rxcp)
			break;

		/* Is it a flush compl that has no data */
		if (unlikely(rxcp->num_rcvd == 0))
			goto loop_continue;

		/* Discard compl with partial DMA Lancer B0 */
		if (unlikely(!rxcp->pkt_size)) {
			be_rx_compl_discard(rxo, rxcp);
			goto loop_continue;
		}

		/* On BE drop pkts that arrive due to imperfect filtering in
                 * promiscuous mode on some skews
                 */
		if (unlikely(rxcp->port != adapter->port_num &&
			     !lancer_chip(adapter))) {
			be_rx_compl_discard(rxo, rxcp);
			goto loop_continue;
		}

		if (do_gro(rxcp))
			be_rx_compl_process_gro(rxo, napi, rxcp);
		else
			be_rx_compl_process(rxo, napi, rxcp);

loop_continue:
		frags_consumed += rxcp->num_rcvd;
		be_rx_stats_update(rxo, rxcp);
	}

	if (work_done) {
		be_cq_notify(adapter, rx_cq->id, true, work_done);

		/* When an rx-obj gets into post_starved state, just
                 * let be_worker do the posting.
                 */
		if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
		    !rxo->rx_post_starved)
			be_post_rx_frags(rxo, GFP_ATOMIC,
					 max_t(u32, MAX_RX_POST,
					       frags_consumed));
	}

	return work_done;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
203
81.85%
8
61.54%
Padmanabh Ratnakar
22
8.87%
2
15.38%
Ajit Khaparde
20
8.06%
1
7.69%
Eric Dumazet
2
0.81%
1
7.69%
Stephen Hemminger
1
0.40%
1
7.69%
Total
248
100.00%
13
100.00%



static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
{
	switch (status) {
	case BE_TX_COMP_HDR_PARSE_ERR:
		tx_stats(txo)->tx_hdr_parse_err++;
		break;
	case BE_TX_COMP_NDMA_ERR:
		tx_stats(txo)->tx_dma_err++;
		break;
	case BE_TX_COMP_ACL_ERR:
		tx_stats(txo)->tx_spoof_check_err++;
		break;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
56
98.25%
1
50.00%
Sriharsha Basavapatna
1
1.75%
1
50.00%
Total
57
100.00%
2
100.00%



static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
{
	switch (status) {
	case LANCER_TX_COMP_LSO_ERR:
		tx_stats(txo)->tx_tso_err++;
		break;
	case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
	case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
		tx_stats(txo)->tx_spoof_check_err++;
		break;
	case LANCER_TX_COMP_QINQ_ERR:
		tx_stats(txo)->tx_qinq_err++;
		break;
	case LANCER_TX_COMP_PARITY_ERR:
		tx_stats(txo)->tx_internal_parity_err++;
		break;
	case LANCER_TX_COMP_DMA_ERR:
		tx_stats(txo)->tx_dma_err++;
		break;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
83
98.81%
1
50.00%
Sriharsha Basavapatna
1
1.19%
1
50.00%
Total
84
100.00%
2
100.00%



static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
			  int idx)
{
	int num_wrbs = 0, work_done = 0;
	struct be_tx_compl_info *txcp;

	while ((txcp = be_tx_compl_get(txo))) {
		num_wrbs += be_tx_compl_process(adapter, txo, txcp->end_index);
		work_done++;

		if (txcp->status) {
			if (lancer_chip(adapter))
				lancer_update_tx_err(txo, txcp->status);
			else
				be_update_tx_err(txo, txcp->status);
		}
	}

	if (work_done) {
		be_cq_notify(adapter, txo->cq.id, true, work_done);
		atomic_sub(num_wrbs, &txo->q.used);

		/* As Tx wrbs have been freed up, wake up netdev queue
                 * if it was stopped due to lack of tx wrbs.  */
		if (__netif_subqueue_stopped(adapter->netdev, idx) &&
		    be_can_txq_wake(txo)) {
			netif_wake_subqueue(adapter->netdev, idx);
		}

		u64_stats_update_begin(&tx_stats(txo)->sync_compl);
		tx_stats(txo)->tx_compl += work_done;
		u64_stats_update_end(&tx_stats(txo)->sync_compl);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
134
71.28%
8
61.54%
Kalesh Purayil
25
13.30%
1
7.69%
Sriharsha Basavapatna
17
9.04%
2
15.38%
Padmanabh Ratnakar
12
6.38%
2
15.38%
Total
188
100.00%
13
100.00%



int be_poll(struct napi_struct *napi, int budget)
{
	struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
	struct be_adapter *adapter = eqo->adapter;
	int max_work = 0, work, i, num_evts;
	struct be_rx_obj *rxo;
	struct be_tx_obj *txo;
	u32 mult_enc = 0;

	num_evts = events_get(eqo);

	for_all_tx_queues_on_eq(adapter, eqo, txo, i)
		be_process_tx(adapter, txo, i);

	/* This loop will iterate twice for EQ0 in which
         * completions of the last RXQ (default one) are also processed
         * For other EQs the loop iterates only once
         */
	for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
		work = be_process_rx(rxo, napi, budget);
		max_work = max(work, max_work);
	}

	if (is_mcc_eqo(eqo))
		be_process_mcc(adapter);

	if (max_work < budget) {
		napi_complete_done(napi, max_work);

		/* Skyhawk EQ_DB has a provision to set the rearm to interrupt
                 * delay via a delay multiplier encoding value
                 */
		if (skyhawk_chip(adapter))
			mult_enc = be_get_eq_delay_mult_enc(eqo);

		be_eq_notify(adapter, eqo->q.id, true, false, num_evts,
			     mult_enc);
	} else {
		/* As we'll continue in polling mode, count and clear events */
		be_eq_notify(adapter, eqo->q.id, false, false, num_evts, 0);
	}
	return max_work;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
157
75.12%
6
60.00%
Padmanabh Ratnakar
48
22.97%
2
20.00%
Eric Dumazet
4
1.91%
2
20.00%
Total
209
100.00%
10
100.00%



void be_detect_error(struct be_adapter *adapter)
{
	u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
	u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
	u32 i;
	struct device *dev = &adapter->pdev->dev;

	if (be_check_error(adapter, BE_ERROR_HW))
		return;

	if (lancer_chip(adapter)) {
		sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
		if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
			be_set_error(adapter, BE_ERROR_UE);
			sliport_err1 = ioread32(adapter->db +
						SLIPORT_ERROR1_OFFSET);
			sliport_err2 = ioread32(adapter->db +
						SLIPORT_ERROR2_OFFSET);
			/* Do not log error messages if its a FW reset */
			if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
			    sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
				dev_info(dev, "Firmware update in progress\n");
			} else {
				dev_err(dev, "Error detected in the card\n");
				dev_err(dev, "ERR: sliport status 0x%x\n",
					sliport_status);
				dev_err(dev, "ERR: sliport error1 0x%x\n",
					sliport_err1);
				dev_err(dev, "ERR: sliport error2 0x%x\n",
					sliport_err2);
			}
		}
	} else {
		ue_lo = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_LOW);
		ue_hi = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_HIGH);
		ue_lo_mask = ioread32(adapter->pcicfg +
				      PCICFG_UE_STATUS_LOW_MASK);
		ue_hi_mask = ioread32(adapter->pcicfg +
				      PCICFG_UE_STATUS_HI_MASK);

		ue_lo = (ue_lo & ~ue_lo_mask);
		ue_hi = (ue_hi & ~ue_hi_mask);

		/* On certain platforms BE hardware can indicate spurious UEs.
                 * Allow HW to stop working completely in case of a real UE.
                 * Hence not setting the hw_error for UE detection.
                 */

		if (ue_lo || ue_hi) {
			dev_err(dev, "Error detected in the adapter");
			if (skyhawk_chip(adapter))
				be_set_error(adapter, BE_ERROR_UE);

			for (i = 0; ue_lo; ue_lo >>= 1, i++) {
				if (ue_lo & 1)
					dev_err(dev, "UE: %s bit set\n",
						ue_status_low_desc[i]);
			}
			for (i = 0; ue_hi; ue_hi >>= 1, i++) {
				if (ue_hi & 1)
					dev_err(dev, "UE: %s bit set\n",
						ue_status_hi_desc[i]);
			}
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
124
36.05%
2
20.00%
Padmanabh Ratnakar
99
28.78%
2
20.00%
Somnath Kotur
80
23.26%
2
20.00%
Suresh Reddy
20
5.81%
1
10.00%
Venkat Duvvuru
15
4.36%
1
10.00%
Sathya Perla
5
1.45%
1
10.00%
Sriharsha Basavapatna
1
0.29%
1
10.00%
Total
344
100.00%
10
100.00%



static void be_msix_disable(struct be_adapter *adapter)
{
	if (msix_enabled(adapter)) {
		pci_disable_msix(adapter->pdev);
		adapter->num_msix_vec = 0;
		adapter->num_msix_roce_vec = 0;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
39
100.00%
4
100.00%
Total
39
100.00%
4
100.00%



static int be_msix_enable(struct be_adapter *adapter)
{
	unsigned int i, max_roce_eqs;
	struct device *dev = &adapter->pdev->dev;
	int num_vec;

	/* If RoCE is supported, program the max number of vectors that
         * could be used for NIC and RoCE, else, just program the number
         * we'll use initially.
         */
	if (be_roce_supported(adapter)) {
		max_roce_eqs =
			be_max_func_eqs(adapter) - be_max_nic_eqs(adapter);
		max_roce_eqs = min(max_roce_eqs, num_online_cpus());
		num_vec = be_max_any_irqs(adapter) + max_roce_eqs;
	} else {
		num_vec = max(adapter->cfg_num_rx_irqs,
			      adapter->cfg_num_tx_irqs);
	}

	for (i = 0; i < num_vec; i++)
		adapter->msix_entries[i].entry = i;

	num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
					MIN_MSIX_VECTORS, num_vec);
	if (num_vec < 0)
		goto fail;

	if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
		adapter->num_msix_roce_vec = num_vec / 2;
		dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
			 adapter->num_msix_roce_vec);
	}

	adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;

	dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
		 adapter->num_msix_vec);
	return 0;

fail:
	dev_warn(dev, "MSIx enable failed\n");

	/* INTx is not supported in VFs, so fail probe if enable_msix fails */
	if (be_virtfn(adapter))
		return num_vec;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
140
64.22%
8
61.54%
Parav Pandit
39
17.89%
1
7.69%
Alexander Gordeev
28
12.84%
1
7.69%
Somnath Kotur
7
3.21%
1
7.69%
Dan Carpenter
3
1.38%
1
7.69%
Kalesh Purayil
1
0.46%
1
7.69%
Total
218
100.00%
13
100.00%



static inline int be_msix_vec_get(struct be_adapter *adapter,
				  struct be_eq_obj *eqo)
{
	return adapter->msix_entries[eqo->msix_idx].vector;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
20
68.97%
3
60.00%
Sarveshwar Bandi
9
31.03%
2
40.00%
Total
29
100.00%
5
100.00%



static int be_msix_register(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	struct be_eq_obj *eqo;
	int status, i, vec;

	for_all_evt_queues(adapter, eqo, i) {
		sprintf(eqo->desc, "%s-q%d", netdev->name, i);
		vec = be_msix_vec_get(adapter, eqo);
		status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
		if (status)
			goto err_msix;

		irq_set_affinity_hint(vec, eqo->affinity_mask);
	}

	return 0;
err_msix:
	for (i--; i >= 0; i--) {
		eqo = &adapter->eq_obj[i];
		free_irq(be_msix_vec_get(adapter, eqo), eqo);
	}
	dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
		 status);
	be_msix_disable(adapter);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
129
79.63%
7
58.33%
Venkat Duvvuru
11
6.79%
1
8.33%
Ajit Khaparde
11
6.79%
2
16.67%
Padmanabh Ratnakar
9
5.56%
1
8.33%
Sarveshwar Bandi
2
1.23%
1
8.33%
Total
162
100.00%
12
100.00%



static int be_irq_register(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	int status;

	if (msix_enabled(adapter)) {
		status = be_msix_register(adapter);
		if (status == 0)
			goto done;
		/* INTx is not supported for VF */
		if (be_virtfn(adapter))
			return status;
	}

	/* INTx: only the first EQ is used */
	netdev->irq = adapter->pdev->irq;
	status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
			     &adapter->eq_obj[0]);
	if (status) {
		dev_err(&adapter->pdev->dev,
			"INTx request IRQ failed - err %d\n", status);
		return status;
	}
done:
	adapter->isr_registered = true;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
116
89.92%
3
60.00%
Sarveshwar Bandi
12
9.30%
1
20.00%
Kalesh Purayil
1
0.78%
1
20.00%
Total
129
100.00%
5
100.00%



static void be_irq_unregister(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	struct be_eq_obj *eqo;
	int i, vec;

	if (!adapter->isr_registered)
		return;

	/* INTx */
	if (!msix_enabled(adapter)) {
		free_irq(netdev->irq, &adapter->eq_obj[0]);
		goto done;
	}

	/* MSIx */
	for_all_evt_queues(adapter, eqo, i) {
		vec = be_msix_vec_get(adapter, eqo);
		irq_set_affinity_hint(vec, NULL);
		free_irq(vec, eqo);
	}

done:
	adapter->isr_registered = false;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
92
84.40%
5
83.33%
Padmanabh Ratnakar
17
15.60%
1
16.67%
Total
109
100.00%
6
100.00%



static void be_rx_qs_destroy(struct be_adapter *adapter)
{
	struct rss_info *rss = &adapter->rss_info;
	struct be_queue_info *q;
	struct be_rx_obj *rxo;
	int i;

	for_all_rx_queues(adapter, rxo, i) {
		q = &rxo->q;
		if (q->created) {
			/* If RXQs are destroyed while in an "out of buffer"
                         * state, there is a possibility of an HW stall on
                         * Lancer. So, post 64 buffers to each queue to relieve
                         * the "out of buffer" condition.
                         * Make sure there's space in the RXQ before posting.
                         */
			if (lancer_chip(adapter)) {
				be_rx_cq_clean(rxo);
				if (atomic_read(&q->used) == 0)
					be_post_rx_frags(rxo, GFP_KERNEL,
							 MAX_RX_POST);
			}

			be_cmd_rxq_destroy(adapter, q);
			be_rx_cq_clean(rxo);
			be_rxq_clean(rxo);
		}
		be_queue_free(adapter, q);
	}

	if (rss->rss_flags) {
		rss->rss_flags = RSS_ENABLE_NONE;
		be_cmd_rss_config(adapter, rss->rsstable, rss->rss_flags,
				  128, rss->rss_hkey);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
68
44.74%
2
50.00%
Ajit Khaparde
43
28.29%
1
25.00%
Kalesh Purayil
41
26.97%
1
25.00%
Total
152
100.00%
4
100.00%



static void be_disable_if_filters(struct be_adapter *adapter)
{
	/* Don't delete MAC on BE3 VFs without FILTMGMT privilege  */
	if (!BEx_chip(adapter) || !be_virtfn(adapter) ||
	    check_privilege(adapter, BE_PRIV_FILTMGMT)) {
		be_dev_mac_del(adapter, adapter->pmac_id[0]);
		eth_zero_addr(adapter->dev_mac);
	}

	be_clear_uc_list(adapter);
	be_clear_mc_list(adapter);

	/* The IFACE flags are enabled in the open path and cleared
         * in the close path. When a VF gets detached from the host and
         * assigned to a VM the following happens:
         *      - VF's IFACE flags get cleared in the detach path
         *      - IFACE create is issued by the VF in the attach path
         * Due to a bug in the BE3/Skyhawk-R FW
         * (Lancer FW doesn't have the bug), the IFACE capability flags
         * specified along with the IFACE create cmd issued by a VF are not
         * honoured by FW.  As a consequence, if a *new* driver
         * (that enables/disables IFACE flags in open/close)
         * is loaded in the host and an *old* driver is * used by a VM/VF,
         * the IFACE gets created *without* the needed flags.
         * To avoid this, disable RX-filter flags only for Lancer.
         */
	if (lancer_chip(adapter)) {
		be_cmd_rx_filter(adapter, BE_IF_ALL_FILT_FLAGS, OFF);
		adapter->if_flags &= ~BE_IF_ALL_FILT_FLAGS;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
53
58.89%
1
20.00%
Ivan Vecera
31
34.44%
2
40.00%
Sriharsha Basavapatna
5
5.56%
1
20.00%
Suresh Reddy
1
1.11%
1
20.00%
Total
90
100.00%
5
100.00%



static int be_close(struct net_device *netdev)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_eq_obj *eqo;
	int i;

	/* This protection is needed as be_close() may be called even when the
         * adapter is in cleared state (after eeh perm failure)
         */
	if (!(adapter->flags & BE_FLAGS_SETUP_DONE))
		return 0;

	/* Before attempting cleanup ensure all the pending cmds in the
         * config_wq have finished execution
         */
	flush_workqueue(be_wq);

	be_disable_if_filters(adapter);

	if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
		for_all_evt_queues(adapter, eqo, i) {
			napi_disable(&eqo->napi);
		}
		adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
	}

	be_async_mcc_disable(adapter);

	/* Wait for all pending tx completions to arrive so that
         * all tx skbs are freed.
         */
	netif_tx_disable(netdev);
	be_tx_compl_clean(adapter);

	be_rx_qs_destroy(adapter);

	for_all_evt_queues(adapter, eqo, i) {
		if (msix_enabled(adapter))
			synchronize_irq(be_msix_vec_get(adapter, eqo));
		else
			synchronize_irq(netdev->irq);
		be_eq_clean(eqo);
	}

	be_irq_unregister(adapter);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
109
68.55%
10
62.50%
Kalesh Purayil
20
12.58%
2
12.50%
Somnath Kotur
16
10.06%
1
6.25%
Ivan Vecera
9
5.66%
1
6.25%
Padmanabh Ratnakar
4
2.52%
1
6.25%
David S. Miller
1
0.63%
1
6.25%
Total
159
100.00%
16
100.00%



static int be_rx_qs_create(struct be_adapter *adapter)
{
	struct rss_info *rss = &adapter->rss_info;
	u8 rss_key[RSS_HASH_KEY_LEN];
	struct be_rx_obj *rxo;
	int rc, i, j;

	for_all_rx_queues(adapter, rxo, i) {
		rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
				    sizeof(struct be_eth_rx_d));
		if (rc)
			return rc;
	}

	if (adapter->need_def_rxq || !adapter->num_rss_qs) {
		rxo = default_rxo(adapter);
		rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
				       rx_frag_size, adapter->if_handle,
				       false, &rxo->rss_id);
		if (rc)
			return rc;
	}

	for_all_rss_queues(adapter, rxo, i) {
		rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
				       rx_frag_size, adapter->if_handle,
				       true, &rxo->rss_id);
		if (rc)
			return rc;
	}

	if (be_multi_rxq(adapter)) {
		for (j = 0; j < RSS_INDIR_TABLE_LEN; j += adapter->num_rss_qs) {
			for_all_rss_queues(adapter, rxo, i) {
				if ((j + i) >= RSS_INDIR_TABLE_LEN)
					break;
				rss->rsstable[j + i] = rxo->rss_id;
				rss->rss_queue[j + i] = i;
			}
		}
		rss->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
			RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;

		if (!BEx_chip(adapter))
			rss->rss_flags |= RSS_ENABLE_UDP_IPV4 |
				RSS_ENABLE_UDP_IPV6;

		netdev_rss_key_fill(rss_key, RSS_HASH_KEY_LEN);
		rc = be_cmd_rss_config(adapter, rss->rsstable, rss->rss_flags,
				       RSS_INDIR_TABLE_LEN, rss_key);
		if (rc) {
			rss->rss_flags = RSS_ENABLE_NONE;
			return rc;
		}

		memcpy(rss->rss_hkey, rss_key, RSS_HASH_KEY_LEN);
	} else {
		/* Disable RSS, if only default RX Q is created */
		rss->rss_flags = RSS_ENABLE_NONE;
	}


	/* Post 1 less than RXQ-len to avoid head being equal to tail,
         * which is a queue empty condition
         */
	for_all_rx_queues(adapter, rxo, i)
		be_post_rx_frags(rxo, GFP_KERNEL, RX_Q_LEN - 1);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
212
57.77%
3
23.08%
Suresh Reddy
38
10.35%
2
15.38%
Venkat Duvvuru
37
10.08%
1
7.69%
Padmanabh Ratnakar
32
8.72%
1
7.69%
Eric Dumazet
20
5.45%
1
7.69%
Vasundhara Volam
15
4.09%
2
15.38%
Ajit Khaparde
12
3.27%
2
15.38%
Ivan Vecera
1
0.27%
1
7.69%
Total
367
100.00%
13
100.00%



static int be_enable_if_filters(struct be_adapter *adapter)
{
	int status;

	status = be_cmd_rx_filter(adapter, BE_IF_FILT_FLAGS_BASIC, ON);
	if (status)
		return status;

	/* Normally this condition usually true as the ->dev_mac is zeroed.
         * But on BE3 VFs the initial MAC is pre-programmed by PF and
         * subsequent be_dev_mac_add() can fail (after fresh boot)
         */
	if (!ether_addr_equal(adapter->dev_mac, adapter->netdev->dev_addr)) {
		int old_pmac_id = -1;

		/* Remember old programmed MAC if any - can happen on BE3 VF */
		if (!is_zero_ether_addr(adapter->dev_mac))
			old_pmac_id = adapter->pmac_id[0];

		status = be_dev_mac_add(adapter, adapter->netdev->dev_addr);
		if (status)
			return status;

		/* Delete the old programmed MAC as we successfully programmed
                 * a new MAC
                 */
		if (old_pmac_id >= 0 && old_pmac_id != adapter->pmac_id[0])
			be_dev_mac_del(adapter, old_pmac_id);

		ether_addr_copy(adapter->dev_mac, adapter->netdev->dev_addr);
	}

	if (adapter->vlans_added)
		be_vid_config(adapter);

	__be_set_rx_mode(adapter);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
77
50.66%
1
14.29%
Ivan Vecera
59
38.82%
2
28.57%
Suresh Reddy
14
9.21%
2
28.57%
Venkat Duvvuru
1
0.66%
1
14.29%
Sathya Perla
1
0.66%
1
14.29%
Total
152
100.00%
7
100.00%



static int be_open(struct net_device *netdev)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_eq_obj *eqo;
	struct be_rx_obj *rxo;
	struct be_tx_obj *txo;
	u8 link_status;
	int status, i;

	status = be_rx_qs_create(adapter);
	if (status)
		goto err;

	status = be_enable_if_filters(adapter);
	if (status)
		goto err;

	status = be_irq_register(adapter);
	if (status)
		goto err;

	for_all_rx_queues(adapter, rxo, i)
		be_cq_notify(adapter, rxo->cq.id, true, 0);

	for_all_tx_queues(adapter, txo, i)
		be_cq_notify(adapter, txo->cq.id, true, 0);

	be_async_mcc_enable(adapter);

	for_all_evt_queues(adapter, eqo, i) {
		napi_enable(&eqo->napi);
		be_eq_notify(adapter, eqo->q.id, true, true, 0, 0);
	}
	adapter->flags |= BE_FLAGS_NAPI_ENABLED;

	status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
	if (!status)
		be_link_status_update(adapter, link_status);

	netif_tx_start_all_queues(netdev);
	if (skyhawk_chip(adapter))
		udp_tunnel_get_rx_info(netdev);

	return 0;
err:
	be_close(adapter->netdev);
	return -EIO;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
177
74.06%
10
58.82%
Ajit Khaparde
29
12.13%
1
5.88%
Somnath Kotur
15
6.28%
2
11.76%
Kalesh Purayil
14
5.86%
1
5.88%
Padmanabh Ratnakar
2
0.84%
1
5.88%
Alexander Duyck
1
0.42%
1
5.88%
Suresh Reddy
1
0.42%
1
5.88%
Total
239
100.00%
17
100.00%



static void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
{
	u32 addr;

	addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);

	mac[5] = (u8)(addr & 0xFF);
	mac[4] = (u8)((addr >> 8) & 0xFF);
	mac[3] = (u8)((addr >> 16) & 0xFF);
	/* Use the OUI from the current MAC address */
	memcpy(mac, adapter->netdev->dev_addr, 3);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
97
100.00%
1
100.00%
Total
97
100.00%
1
100.00%

/*
 * Generate a seed MAC address from the PF MAC Address using jhash.
 * MAC Address for VFs are assigned incrementally starting from the seed.
 * These addresses are programmed in the ASIC by the PF and the VF driver
 * queries for the MAC address during its probe.
 */


static int be_vf_eth_addr_config(struct be_adapter *adapter)
{
	u32 vf;
	int status = 0;
	u8 mac[ETH_ALEN];
	struct be_vf_cfg *vf_cfg;

	be_vf_eth_addr_generate(adapter, mac);

	for_all_vfs(adapter, vf_cfg, vf) {
		if (BEx_chip(adapter))
			status = be_cmd_pmac_add(adapter, mac,
						 vf_cfg->if_handle,
						 &vf_cfg->pmac_id, vf + 1);
		else
			status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
						vf + 1);

		if (status)
			dev_err(&adapter->pdev->dev,
				"Mac address assignment failed for VF %d\n",
				vf);
		else
			memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);

		mac[5] += 1;
	}
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
83
61.94%
2
33.33%
Sathya Perla
30
22.39%
3
50.00%
Padmanabh Ratnakar
21
15.67%
1
16.67%
Total
134
100.00%
6
100.00%



static int be_vfs_mac_query(struct be_adapter *adapter)
{
	int status, vf;
	u8 mac[ETH_ALEN];
	struct be_vf_cfg *vf_cfg;

	for_all_vfs(adapter, vf_cfg, vf) {
		status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id,
					       mac, vf_cfg->if_handle,
					       false, vf+1);
		if (status)
			return status;
		memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
73
90.12%
1
50.00%
Suresh Reddy
8
9.88%
1
50.00%
Total
81
100.00%
2
100.00%



static void be_vf_clear(struct be_adapter *adapter)
{
	struct be_vf_cfg *vf_cfg;
	u32 vf;

	if (pci_vfs_assigned(adapter->pdev)) {
		dev_warn(&adapter->pdev->dev,
			 "VFs are assigned to VMs: not disabling VFs\n");
		goto done;
	}

	pci_disable_sriov(adapter->pdev);

	for_all_vfs(adapter, vf_cfg, vf) {
		if (BEx_chip(adapter))
			be_cmd_pmac_del(adapter, vf_cfg->if_handle,
					vf_cfg->pmac_id, vf + 1);
		else
			be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
				       vf + 1);

		be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
	}

	if (BE3_chip(adapter))
		be_cmd_set_hsw_config(adapter, 0, 0,
				      adapter->if_handle,
				      PORT_FWD_TYPE_PASSTHRU, 0);
done:
	kfree(adapter->vf_cfg);
	adapter->num_vfs = 0;
	adapter->flags &= ~BE_FLAGS_SRIOV_ENABLED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
90
55.90%
8
61.54%
Somnath Kotur
24
14.91%
1
7.69%
Ajit Khaparde
22
13.66%
2
15.38%
Padmanabh Ratnakar
18
11.18%
1
7.69%
Vasundhara Volam
7
4.35%
1
7.69%
Total
161
100.00%
13
100.00%



static void be_clear_queues(struct be_adapter *adapter)
{
	be_mcc_queues_destroy(adapter);
	be_rx_cqs_destroy(adapter);
	be_tx_queues_destroy(adapter);
	be_evt_queues_destroy(adapter);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
31
100.00%
1
100.00%
Total
31
100.00%
1
100.00%



static void be_cancel_worker(struct be_adapter *adapter)
{
	if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
		cancel_delayed_work_sync(&adapter->work);
		adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
36
100.00%
3
100.00%
Total
36
100.00%
3
100.00%



static void be_cancel_err_detection(struct be_adapter *adapter)
{
	struct be_error_recovery *err_rec = &adapter->error_recovery;

	if (!be_err_recovery_workq)
		return;

	if (adapter->flags & BE_FLAGS_ERR_DETECTION_SCHEDULED) {
		cancel_delayed_work_sync(&err_rec->err_detection_work);
		adapter->flags &= ~BE_FLAGS_ERR_DETECTION_SCHEDULED;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
34
65.38%
1
50.00%
Sriharsha Basavapatna
18
34.62%
1
50.00%
Total
52
100.00%
2
100.00%



static void be_disable_vxlan_offloads(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;

	if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)
		be_cmd_manage_iface(adapter, adapter->if_handle,
				    OP_CONVERT_TUNNEL_TO_NORMAL);

	if (adapter->vxlan_port)
		be_cmd_set_vxlan_port(adapter, 0);

	adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS;
	adapter->vxlan_port = 0;

	netdev->hw_enc_features = 0;
	netdev->hw_features &= ~(NETIF_F_GSO_UDP_TUNNEL);
	netdev->features &= ~(NETIF_F_GSO_UDP_TUNNEL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
56
62.92%
1
33.33%
Sriharsha Basavapatna
33
37.08%
2
66.67%
Total
89
100.00%
3
100.00%



static void be_calculate_vf_res(struct be_adapter *adapter, u16 num_vfs,
				struct be_resources *vft_res)
{
	struct be_resources res = adapter->pool_res;
	u32 vf_if_cap_flags = res.vf_if_cap_flags;
	struct be_resources res_mod = {0};
	u16 num_vf_qs = 1;

	/* Distribute the queue resources among the PF and it's VFs */
	if (num_vfs) {
		/* Divide the rx queues evenly among the VFs and the PF, capped
                 * at VF-EQ-count. Any remainder queues belong to the PF.
                 */
		num_vf_qs = min(SH_VF_MAX_NIC_EQS,
				res.max_rss_qs / (num_vfs + 1));

		/* Skyhawk-R chip supports only MAX_PORT_RSS_TABLES
                 * RSS Tables per port. Provide RSS on VFs, only if number of
                 * VFs requested is less than it's PF Pool's RSS Tables limit.
                 */
		if (num_vfs >= be_max_pf_pool_rss_tables(adapter))
			num_vf_qs = 1;
	}

	/* Resource with fields set to all '1's by GET_PROFILE_CONFIG cmd,
         * which are modifiable using SET_PROFILE_CONFIG cmd.
         */
	be_cmd_get_profile_config(adapter, &res_mod, NULL, ACTIVE_PROFILE_TYPE,
				  RESOURCE_MODIFIABLE, 0);

	/* If RSS IFACE capability flags are modifiable for a VF, set the
         * capability flag as valid and set RSS and DEFQ_RSS IFACE flags if
         * more than 1 RSSQ is available for a VF.
         * Otherwise, provision only 1 queue pair for VF.
         */
	if (res_mod.vf_if_cap_flags & BE_IF_FLAGS_RSS) {
		vft_res->flags |= BIT(IF_CAPS_FLAGS_VALID_SHIFT);
		if (num_vf_qs > 1) {
			vf_if_cap_flags |= BE_IF_FLAGS_RSS;
			if (res.if_cap_flags & BE_IF_FLAGS_DEFQ_RSS)
				vf_if_cap_flags |= BE_IF_FLAGS_DEFQ_RSS;
		} else {
			vf_if_cap_flags &= ~(BE_IF_FLAGS_RSS |
					     BE_IF_FLAGS_DEFQ_RSS);
		}
	} else {
		num_vf_qs = 1;
	}

	if (res_mod.vf_if_cap_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) {
		vft_res->flags |= BIT(IF_CAPS_FLAGS_VALID_SHIFT);
		vf_if_cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
	}

	vft_res->vf_if_cap_flags = vf_if_cap_flags;
	vft_res->max_rx_qs = num_vf_qs;
	vft_res->max_rss_qs = num_vf_qs;
	vft_res->max_tx_qs = res.max_tx_qs / (num_vfs + 1);
	vft_res->max_cq_count = res.max_cq_count / (num_vfs + 1);

	/* Distribute unicast MACs, VLANs, IFACE count and MCCQ count equally
         * among the PF and it's VFs, if the fields are changeable
         */
	if (res_mod.max_uc_mac == FIELD_MODIFIABLE)
		vft_res->max_uc_mac = res.max_uc_mac / (num_vfs + 1);

	if (res_mod.max_vlans == FIELD_MODIFIABLE)
		vft_res->max_vlans = res.max_vlans / (num_vfs + 1);

	if (res_mod.max_iface_count == FIELD_MODIFIABLE)
		vft_res->max_iface_count = res.max_iface_count / (num_vfs + 1);

	if (res_mod.max_mcc_count == FIELD_MODIFIABLE)
		vft_res->max_mcc_count = res.max_mcc_count / (num_vfs + 1);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Suresh Reddy
256
78.77%
1
25.00%
Vasundhara Volam
49
15.08%
1
25.00%
Somnath Kotur
11
3.38%
1
25.00%
Sriharsha Basavapatna
9
2.77%
1
25.00%
Total
325
100.00%
4
100.00%



static void be_if_destroy(struct be_adapter *adapter)
{
	be_cmd_if_destroy(adapter, adapter->if_handle,  0);

	kfree(adapter->pmac_id);
	adapter->pmac_id = NULL;

	kfree(adapter->mc_list);
	adapter->mc_list = NULL;

	kfree(adapter->uc_list);
	adapter->uc_list = NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
61
100.00%
1
100.00%
Total
61
100.00%
1
100.00%



static int be_clear(struct be_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	struct  be_resources vft_res = {0};

	be_cancel_worker(adapter);

	flush_workqueue(be_wq);

	if (sriov_enabled(adapter))
		be_vf_clear(adapter);

	/* Re-configure FW to distribute resources evenly across max-supported
         * number of VFs, only when VFs are not already enabled.
         */
	if (skyhawk_chip(adapter) && be_physfn(adapter) &&
	    !pci_vfs_assigned(pdev)) {
		be_calculate_vf_res(adapter,
				    pci_sriov_get_totalvfs(pdev),
				    &vft_res);
		be_cmd_set_sriov_config(adapter, adapter->pool_res,
					pci_sriov_get_totalvfs(pdev),
					&vft_res);
	}

	be_disable_vxlan_offloads(adapter);

	be_if_destroy(adapter);

	be_clear_queues(adapter);

	be_msix_disable(adapter);
	adapter->flags &= ~BE_FLAGS_SETUP_DONE;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
55
41.98%
3
25.00%
Somnath Kotur
29
22.14%
1
8.33%
Sathya Perla
26
19.85%
5
41.67%
Suresh Reddy
13
9.92%
1
8.33%
Kalesh Purayil
7
5.34%
1
8.33%
Padmanabh Ratnakar
1
0.76%
1
8.33%
Total
131
100.00%
12
100.00%



static int be_vfs_if_create(struct be_adapter *adapter)
{
	struct be_resources res = {0};
	u32 cap_flags, en_flags, vf;
	struct be_vf_cfg *vf_cfg;
	int status;

	/* If a FW profile exists, then cap_flags are updated */
	cap_flags = BE_VF_IF_EN_FLAGS;

	for_all_vfs(adapter, vf_cfg, vf) {
		if (!BE3_chip(adapter)) {
			status = be_cmd_get_profile_config(adapter, &res, NULL,
							   ACTIVE_PROFILE_TYPE,
							   RESOURCE_LIMITS,
							   vf + 1);
			if (!status) {
				cap_flags = res.if_cap_flags;
				/* Prevent VFs from enabling VLAN promiscuous
                                 * mode
                                 */
				cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
			}
		}

		/* PF should enable IF flags during proxy if_create call */
		en_flags = cap_flags & BE_VF_IF_EN_FLAGS;
		status = be_cmd_if_create(adapter, cap_flags, en_flags,
					  &vf_cfg->if_handle, vf + 1);
		if (status)
			return status;
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
70
51.85%
2
20.00%
Padmanabh Ratnakar
25
18.52%
1
10.00%
Kalesh Purayil
22
16.30%
2
20.00%
Vasundhara Volam
11
8.15%
3
30.00%
Somnath Kotur
4
2.96%
1
10.00%
Venkat Duvvuru
3
2.22%
1
10.00%
Total
135
100.00%
10
100.00%



static int be_vf_setup_init(struct be_adapter *adapter)
{
	struct be_vf_cfg *vf_cfg;
	int vf;

	adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
				  GFP_KERNEL);
	if (!adapter->vf_cfg)
		return -ENOMEM;

	for_all_vfs(adapter, vf_cfg, vf) {
		vf_cfg->if_handle = -1;
		vf_cfg->pmac_id = -1;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
76
100.00%
4
100.00%
Total
76
100.00%
4
100.00%



static int be_vf_setup(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	struct be_vf_cfg *vf_cfg;
	int status, old_vfs, vf;
	bool spoofchk;

	old_vfs = pci_num_vf(adapter->pdev);

	status = be_vf_setup_init(adapter);
	if (status)
		goto err;

	if (old_vfs) {
		for_all_vfs(adapter, vf_cfg, vf) {
			status = be_cmd_get_if_id(adapter, vf_cfg, vf);
			if (status)
				goto err;
		}

		status = be_vfs_mac_query(adapter);
		if (status)
			goto err;
	} else {
		status = be_vfs_if_create(adapter);
		if (status)
			goto err;

		status = be_vf_eth_addr_config(adapter);
		if (status)
			goto err;
	}

	for_all_vfs(adapter, vf_cfg, vf) {
		/* Allow VFs to programs MAC/VLAN filters */
		status = be_cmd_get_fn_privileges(adapter, &vf_cfg->privileges,
						  vf + 1);
		if (!status && !(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
			status = be_cmd_set_fn_privileges(adapter,
							  vf_cfg->privileges |
							  BE_PRIV_FILTMGMT,
							  vf + 1);
			if (!status) {
				vf_cfg->privileges |= BE_PRIV_FILTMGMT;
				dev_info(dev, "VF%d has FILTMGMT privilege\n",
					 vf);
			}
		}

		/* Allow full available bandwidth */
		if (!old_vfs)
			be_cmd_config_qos(adapter, 0, 0, vf + 1);

		status = be_cmd_get_hsw_config(adapter, NULL, vf + 1,
					       vf_cfg->if_handle, NULL,
					       &spoofchk);
		if (!status)
			vf_cfg->spoofchk = spoofchk;

		if (!old_vfs) {
			be_cmd_enable_vf(adapter, vf + 1);
			be_cmd_set_logical_link_config(adapter,
						       IFLA_VF_LINK_STATE_AUTO,
						       vf+1);
		}
	}

	if (!old_vfs) {
		status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
		if (status) {
			dev_err(dev, "SRIOV enable failed\n");
			adapter->num_vfs = 0;
			goto err;
		}
	}

	if (BE3_chip(adapter)) {
		/* On BE3, enable VEB only when SRIOV is enabled */
		status = be_cmd_set_hsw_config(adapter, 0, 0,
					       adapter->if_handle,
					       PORT_FWD_TYPE_VEB, 0);
		if (status)
			goto err;
	}

	adapter->flags |= BE_FLAGS_SRIOV_ENABLED;
	return 0;
err:
	dev_err(dev, "VF setup failed\n");
	be_vf_clear(adapter);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
250
61.73%
13
50.00%
Somnath Kotur
48
11.85%
2
7.69%
Kalesh Purayil
36
8.89%
1
3.85%
Vasundhara Volam
25
6.17%
4
15.38%
Padmanabh Ratnakar
16
3.95%
2
7.69%
Suresh Reddy
13
3.21%
1
3.85%
Sarveshwar Bandi
11
2.72%
1
3.85%
Ajit Khaparde
3
0.74%
1
3.85%
Ravikumar Nelavelli
3
0.74%
1
3.85%
Total
405
100.00%
26
100.00%

/* Converting function_mode bits on BE3 to SH mc_type enums */



static u8 be_convert_mc_type(u32 function_mode)
{
	if (function_mode & VNIC_MODE && function_mode & QNQ_MODE)
		return vNIC1;
	else if (function_mode & QNQ_MODE)
		return FLEX10;
	else if (function_mode & VNIC_MODE)
		return vNIC2;
	else if (function_mode & UMC_ENABLED)
		return UMC;
	else
		return MC_NONE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
54
96.43%
1
50.00%
Suresh Reddy
2
3.57%
1
50.00%
Total
56
100.00%
2
100.00%

/* On BE2/BE3 FW does not suggest the supported limits */


static void BEx_get_resources(struct be_adapter *adapter,
			      struct be_resources *res)
{
	bool use_sriov = adapter->num_vfs ? 1 : 0;

	if (be_physfn(adapter))
		res->max_uc_mac = BE_UC_PMAC_COUNT;
	else
		res->max_uc_mac = BE_VF_UC_PMAC_COUNT;

	adapter->mc_type = be_convert_mc_type(adapter->function_mode);

	if (be_is_mc(adapter)) {
		/* Assuming that there are 4 channels per port,
                 * when multi-channel is enabled
                 */
		if (be_is_qnq_mode(adapter))
			res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
		else
			/* In a non-qnq multichannel mode, the pvid
                         * takes up one vlan entry
                         */
			res->max_vlans = (BE_NUM_VLANS_SUPPORTED / 4) - 1;
	} else {
		res->max_vlans = BE_NUM_VLANS_SUPPORTED;
	}

	res->max_mcast_mac = BE_MAX_MC;

	/* 1) For BE3 1Gb ports, FW does not support multiple TXQs
         * 2) Create multiple TX rings on a BE3-R multi-channel interface
         *    *only* if it is RSS-capable.
         */
	if (BE2_chip(adapter) || use_sriov ||  (adapter->port_num > 1) ||
	    be_virtfn(adapter) ||
	    (be_is_mc(adapter) &&
	     !(adapter->function_caps & BE_FUNCTION_CAPS_RSS))) {
		res->max_tx_qs = 1;
	} else if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
		struct be_resources super_nic_res = {0};

		/* On a SuperNIC profile, the driver needs to use the
                 * GET_PROFILE_CONFIG cmd to query the per-function TXQ limits
                 */
		be_cmd_get_profile_config(adapter, &super_nic_res, NULL,
					  ACTIVE_PROFILE_TYPE, RESOURCE_LIMITS,
					  0);
		/* Some old versions of BE3 FW don't report max_tx_qs value */
		res->max_tx_qs = super_nic_res.max_tx_qs ? : BE3_MAX_TX_QS;
	} else {
		res->max_tx_qs = BE3_MAX_TX_QS;
	}

	if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
	    !use_sriov && be_physfn(adapter))
		res->max_rss_qs = (adapter->be3_native) ?
					   BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
	res->max_rx_qs = res->max_rss_qs + 1;

	if (be_physfn(adapter))
		res->max_evt_qs = (be_max_vfs(adapter) > 0) ?
					BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
	else
		res->max_evt_qs = 1;

	res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
	res->if_cap_flags &= ~BE_IF_FLAGS_DEFQ_RSS;
	if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
		res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
120
37.50%
3
15.79%
Vasundhara Volam
84
26.25%
8
42.11%
Suresh Reddy
66
20.62%
3
15.79%
Padmanabh Ratnakar
40
12.50%
2
10.53%
Ajit Khaparde
5
1.56%
1
5.26%
Somnath Kotur
4
1.25%
1
5.26%
Kalesh Purayil
1
0.31%
1
5.26%
Total
320
100.00%
19
100.00%



static void be_setup_init(struct be_adapter *adapter)
{
	adapter->vlan_prio_bmap = 0xff;
	adapter->phy.link_speed = -1;
	adapter->if_handle = -1;
	adapter->be3_native = false;
	adapter->if_flags = 0;
	adapter->phy_state = BE_UNKNOWN_PHY_STATE;
	if (be_physfn(adapter))
		adapter->cmd_privileges = MAX_PRIVILEGES;
	else
		adapter->cmd_privileges = MIN_PRIVILEGES;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
45
63.38%
1
20.00%
Sathya Perla
14
19.72%
2
40.00%
Padmanabh Ratnakar
6
8.45%
1
20.00%
Ajit Khaparde
6
8.45%
1
20.00%
Total
71
100.00%
5
100.00%

/* HW supports only MAX_PORT_RSS_TABLES RSS Policy Tables per port.
 * However, this HW limitation is not exposed to the host via any SLI cmd.
 * As a result, in the case of SRIOV and in particular multi-partition configs
 * the driver needs to calcuate a proportional share of RSS Tables per PF-pool
 * for distribution between the VFs. This self-imposed limit will determine the
 * no: of VFs for which RSS can be enabled.
 */


static void be_calculate_pf_pool_rss_tables(struct be_adapter *adapter)
{
	struct be_port_resources port_res = {0};
	u8 rss_tables_on_port;
	u16 max_vfs = be_max_vfs(adapter);

	be_cmd_get_profile_config(adapter, NULL, &port_res, SAVED_PROFILE_TYPE,
				  RESOURCE_LIMITS, 0);

	rss_tables_on_port = MAX_PORT_RSS_TABLES - port_res.nic_pfs;

	/* Each PF Pool's RSS Tables limit =
         * PF's Max VFs / Total_Max_VFs on Port * RSS Tables on Port
         */
	adapter->pool_res.max_rss_tables =
		max_vfs * rss_tables_on_port / port_res.max_vfs;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Somnath Kotur
68
98.55%
1
50.00%
Baoyou Xie
1
1.45%
1
50.00%
Total
69
100.00%
2
100.00%



static int be_get_sriov_config(struct be_adapter *adapter)
{
	struct be_resources res = {0};
	int max_vfs, old_vfs;

	be_cmd_get_profile_config(adapter, &res, NULL, ACTIVE_PROFILE_TYPE,
				  RESOURCE_LIMITS, 0);

	/* Some old versions of BE3 FW don't report max_vfs value */
	if (BE3_chip(adapter) && !res.max_vfs) {
		max_vfs = pci_sriov_get_totalvfs(adapter->pdev);
		res.max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
	}

	adapter->pool_res = res;

	/* If during previous unload of the driver, the VFs were not disabled,
         * then we cannot rely on the PF POOL limits for the TotalVFs value.
         * Instead use the TotalVFs value stored in the pci-dev struct.
         */
	old_vfs = pci_num_vf(adapter->pdev);
	if (old_vfs) {
		dev_info(&adapter->pdev->dev, "%d VFs are already enabled\n",
			 old_vfs);

		adapter->pool_res.max_vfs =
			pci_sriov_get_totalvfs(adapter->pdev);
		adapter->num_vfs = old_vfs;
	}

	if (skyhawk_chip(adapter) && be_max_vfs(adapter) && !old_vfs) {
		be_calculate_pf_pool_rss_tables(adapter);
		dev_info(&adapter->pdev->dev,
			 "RSS can be enabled for all VFs if num_vfs <= %d\n",
			 be_max_pf_pool_rss_tables(adapter));
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
129
72.47%
3
50.00%
Somnath Kotur
43
24.16%
1
16.67%
Padmanabh Ratnakar
3
1.69%
1
16.67%
Sathya Perla
3
1.69%
1
16.67%
Total
178
100.00%
6
100.00%



static void be_alloc_sriov_res(struct be_adapter *adapter)
{
	int old_vfs = pci_num_vf(adapter->pdev);
	struct  be_resources vft_res = {0};
	int status;

	be_get_sriov_config(adapter);

	if (!old_vfs)
		pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter));

	/* When the HW is in SRIOV capable configuration, the PF-pool
         * resources are given to PF during driver load, if there are no
         * old VFs. This facility is not available in BE3 FW.
         * Also, this is done by FW in Lancer chip.
         */
	if (skyhawk_chip(adapter) && be_max_vfs(adapter) && !old_vfs) {
		be_calculate_vf_res(adapter, 0, &vft_res);
		status = be_cmd_set_sriov_config(adapter, adapter->pool_res, 0,
						 &vft_res);
		if (status)
			dev_err(&adapter->pdev->dev,
				"Failed to optimize SRIOV resources\n");
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
88
77.19%
2
33.33%
Suresh Reddy
13
11.40%
1
16.67%
Padmanabh Ratnakar
11
9.65%
1
16.67%
Sathya Perla
2
1.75%
2
33.33%
Total
114
100.00%
6
100.00%



static int be_get_resources(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	struct be_resources res = {0};
	int status;

	/* For Lancer, SH etc read per-function resource limits from FW.
         * GET_FUNC_CONFIG returns per function guaranteed limits.
         * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
         */
	if (BEx_chip(adapter)) {
		BEx_get_resources(adapter, &res);
	} else {
		status = be_cmd_get_func_config(adapter, &res);
		if (status)
			return status;

		/* If a deafault RXQ must be created, we'll use up one RSSQ*/
		if (res.max_rss_qs && res.max_rss_qs == res.max_rx_qs &&
		    !(res.if_cap_flags & BE_IF_FLAGS_DEFQ_RSS))
			res.max_rss_qs -= 1;
	}

	/* If RoCE is supported stash away half the EQs for RoCE */
	res.max_nic_evt_qs = be_roce_supported(adapter) ?
				res.max_evt_qs / 2 : res.max_evt_qs;
	adapter->res = res;

	/* If FW supports RSS default queue, then skip creating non-RSS
         * queue for non-IP traffic.
         */
	adapter->need_def_rxq = (be_if_cap_flags(adapter) &
				 BE_IF_FLAGS_DEFQ_RSS) ? 0 : 1;

	dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
		 be_max_txqs(adapter), be_max_rxqs(adapter),
		 be_max_rss(adapter), be_max_nic_eqs(adapter),
		 be_max_vfs(adapter));
	dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
		 be_max_uc(adapter), be_max_mc(adapter),
		 be_max_vlans(adapter));

	/* Ensure RX and TX queues are created in pairs at init time */
	adapter->cfg_num_rx_irqs =
				min_t(u16, netif_get_num_default_rss_queues(),
				      be_max_qp_irqs(adapter));
	adapter->cfg_num_tx_irqs = adapter->cfg_num_rx_irqs;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
150
65.50%
4
57.14%
Vasundhara Volam
63
27.51%
2
28.57%
Padmanabh Ratnakar
16
6.99%
1
14.29%
Total
229
100.00%
7
100.00%



static int be_get_config(struct be_adapter *adapter)
{
	int status, level;
	u16 profile_id;

	status = be_cmd_get_cntl_attributes(adapter);
	if (status)
		return status;

	status = be_cmd_query_fw_cfg(adapter);
	if (status)
		return status;

	if (!lancer_chip(adapter) && be_physfn(adapter))
		be_cmd_get_fat_dump_len(adapter, &adapter->fat_dump_len);

	if (BEx_chip(adapter)) {
		level = be_cmd_get_fw_log_level(adapter);
		adapter->msg_enable =
			level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
	}

	be_cmd_get_acpi_wol_cap(adapter);
	pci_enable_wake(adapter->pdev, PCI_D3hot, adapter->wol_en);
	pci_enable_wake(adapter->pdev, PCI_D3cold, adapter->wol_en);

	be_cmd_query_port_name(adapter);

	if (be_physfn(adapter)) {
		status = be_cmd_get_active_profile(adapter, &profile_id);
		if (!status)
			dev_info(&adapter->pdev->dev,
				 "Using profile 0x%x\n", profile_id);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
52
29.71%
4
36.36%
Sathya Perla
51
29.14%
3
27.27%
Sriharsha Basavapatna
26
14.86%
1
9.09%
Venkat Duvvuru
23
13.14%
1
9.09%
Suresh Reddy
14
8.00%
1
9.09%
Padmanabh Ratnakar
9
5.14%
1
9.09%
Total
175
100.00%
11
100.00%



static int be_mac_setup(struct be_adapter *adapter)
{
	u8 mac[ETH_ALEN];
	int status;

	if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
		status = be_cmd_get_perm_mac(adapter, mac);
		if (status)
			return status;

		memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
		memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);

		/* Initial MAC for BE3 VFs is already programmed by PF */
		if (BEx_chip(adapter) && be_virtfn(adapter))
			memcpy(adapter->dev_mac, mac, ETH_ALEN);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
78
76.47%
1
50.00%
Ivan Vecera
24
23.53%
1
50.00%
Total
102
100.00%
2
100.00%



static void be_schedule_worker(struct be_adapter *adapter)
{
	queue_delayed_work(be_wq, &adapter->work, msecs_to_jiffies(1000));
	adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
32
100.00%
2
100.00%
Total
32
100.00%
2
100.00%



static void be_destroy_err_recovery_workq(void)
{
	if (!be_err_recovery_workq)
		return;

	flush_workqueue(be_err_recovery_workq);
	destroy_workqueue(be_err_recovery_workq);
	be_err_recovery_workq = NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static void be_schedule_err_detection(struct be_adapter *adapter, u32 delay)
{
	struct be_error_recovery *err_rec = &adapter->error_recovery;

	if (!be_err_recovery_workq)
		return;

	queue_delayed_work(be_err_recovery_workq, &err_rec->err_detection_work,
			   msecs_to_jiffies(delay));
	adapter->flags |= BE_FLAGS_ERR_DETECTION_SCHEDULED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
26
50.98%
1
33.33%
Sriharsha Basavapatna
21
41.18%
1
33.33%
Padmanabh Ratnakar
4
7.84%
1
33.33%
Total
51
100.00%
3
100.00%



static int be_setup_queues(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	int status;

	status = be_evt_queues_create(adapter);
	if (status)
		goto err;

	status = be_tx_qs_create(adapter);
	if (status)
		goto err;

	status = be_rx_cqs_create(adapter);
	if (status)
		goto err;

	status = be_mcc_queues_create(adapter);
	if (status)
		goto err;

	status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
	if (status)
		goto err;

	status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
	if (status)
		goto err;

	return 0;
err:
	dev_err(&adapter->pdev->dev, "queue_setup failed\n");
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
104
77.04%
4
66.67%
Padmanabh Ratnakar
22
16.30%
1
16.67%
Somnath Kotur
9
6.67%
1
16.67%
Total
135
100.00%
6
100.00%



static int be_if_create(struct be_adapter *adapter)
{
	u32 en_flags = BE_IF_FLAGS_RSS | BE_IF_FLAGS_DEFQ_RSS;
	u32 cap_flags = be_if_cap_flags(adapter);
	int status;

	/* alloc required memory for other filtering fields */
	adapter->pmac_id = kcalloc(be_max_uc(adapter),
				   sizeof(*adapter->pmac_id), GFP_KERNEL);
	if (!adapter->pmac_id)
		return -ENOMEM;

	adapter->mc_list = kcalloc(be_max_mc(adapter),
				   sizeof(*adapter->mc_list), GFP_KERNEL);
	if (!adapter->mc_list)
		return -ENOMEM;

	adapter->uc_list = kcalloc(be_max_uc(adapter),
				   sizeof(*adapter->uc_list), GFP_KERNEL);
	if (!adapter->uc_list)
		return -ENOMEM;

	if (adapter->cfg_num_rx_irqs == 1)
		cap_flags &= ~(BE_IF_FLAGS_DEFQ_RSS | BE_IF_FLAGS_RSS);

	en_flags &= cap_flags;
	/* will enable all the needed filter flags in be_open() */
	status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
				  &adapter->if_handle, 0);

	if (status)
		return status;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
109
59.89%
2
66.67%
Ajit Khaparde
73
40.11%
1
33.33%
Total
182
100.00%
3
100.00%



int be_update_queues(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	int status;

	if (netif_running(netdev))
		be_close(netdev);

	be_cancel_worker(adapter);

	/* If any vectors have been shared with RoCE we cannot re-program
         * the MSIx table.
         */
	if (!adapter->num_msix_roce_vec)
		be_msix_disable(adapter);

	be_clear_queues(adapter);
	status = be_cmd_if_destroy(adapter, adapter->if_handle,  0);
	if (status)
		return status;

	if (!msix_enabled(adapter)) {
		status = be_msix_enable(adapter);
		if (status)
			return status;
	}

	status = be_if_create(adapter);
	if (status)
		return status;

	status = be_setup_queues(adapter);
	if (status)
		return status;

	be_schedule_worker(adapter);

	if (netif_running(netdev))
		status = be_open(netdev);

	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
117
77.48%
1
50.00%
Ajit Khaparde
34
22.52%
1
50.00%
Total
151
100.00%
2
100.00%



static inline int fw_major_num(const char *fw_ver)
{
	int fw_major = 0, i;

	i = sscanf(fw_ver, "%d.", &fw_major);
	if (i != 1)
		return 0;

	return fw_major;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
43
100.00%
1
100.00%
Total
43
100.00%
1
100.00%

/* If it is error recovery, FLR the PF
 * Else if any VFs are already enabled don't FLR the PF
 */


static bool be_reset_required(struct be_adapter *adapter)
{
	if (be_error_recovering(adapter))
		return true;
	else
		return pci_num_vf(adapter->pdev) == 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
19
59.38%
1
50.00%
Sriharsha Basavapatna
13
40.62%
1
50.00%
Total
32
100.00%
2
100.00%

/* Wait for the FW to be ready and perform the required initialization */


static int be_func_init(struct be_adapter *adapter)
{
	int status;

	status = be_fw_wait_ready(adapter);
	if (status)
		return status;

	/* FW is now ready; clear errors to allow cmds/doorbell */
	be_clear_error(adapter, BE_CLEAR_ALL);

	if (be_reset_required(adapter)) {
		status = be_cmd_reset_function(adapter);
		if (status)
			return status;

		/* Wait for interrupts to quiesce after an FLR */
		msleep(100);
	}

	/* Tell FW we're ready to fire cmds */
	status = be_cmd_fw_init(adapter);
	if (status)
		return status;

	/* Allow interrupts for other ULPs running on NIC function */
	be_intr_set(adapter, true);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
83
91.21%
1
50.00%
Sriharsha Basavapatna
8
8.79%
1
50.00%
Total
91
100.00%
2
100.00%



static int be_setup(struct be_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;
	int status;

	status = be_func_init(adapter);
	if (status)
		return status;

	be_setup_init(adapter);

	if (!lancer_chip(adapter))
		be_cmd_req_native_mode(adapter);

	/* invoke this cmd first to get pf_num and vf_num which are needed
         * for issuing profile related cmds
         */
	if (!BEx_chip(adapter)) {
		status = be_cmd_get_func_config(adapter, NULL);
		if (status)
			return status;
	}

	status = be_get_config(adapter);
	if (status)
		goto err;

	if (!BE2_chip(adapter) && be_physfn(adapter))
		be_alloc_sriov_res(adapter);

	status = be_get_resources(adapter);
	if (status)
		goto err;

	status = be_msix_enable(adapter);
	if (status)
		goto err;

	/* will enable all the needed filter flags in be_open() */
	status = be_if_create(adapter);
	if (status)
		goto err;

	/* Updating real_num_tx/rx_queues() requires rtnl_lock() */
	rtnl_lock();
	status = be_setup_queues(adapter);
	rtnl_unlock();
	if (status)
		goto err;

	be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);

	status = be_mac_setup(adapter);
	if (status)
		goto err;

	be_cmd_get_fw_ver(adapter);
	dev_info(dev, "FW version is %s\n", adapter->fw_ver);

	if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
		dev_err(dev, "Firmware on card is old(%s), IRQs may not work",
			adapter->fw_ver);
		dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
	}

	status = be_cmd_set_flow_control(adapter, adapter->tx_fc,
					 adapter->rx_fc);
	if (status)
		be_cmd_get_flow_control(adapter, &adapter->tx_fc,
					&adapter->rx_fc);

	dev_info(&adapter->pdev->dev, "HW Flow control - TX:%d RX:%d\n",
		 adapter->tx_fc, adapter->rx_fc);

	if (be_physfn(adapter))
		be_cmd_set_logical_link_config(adapter,
					       IFLA_VF_LINK_STATE_AUTO, 0);

	/* BE3 EVB echoes broadcast/multicast packets back to PF's vport
         * confusing a linux bridge or OVS that it might be connected to.
         * Set the EVB to PASSTHRU mode which effectively disables the EVB
         * when SRIOV is not enabled.
         */
	if (BE3_chip(adapter))
		be_cmd_set_hsw_config(adapter, 0, 0, adapter->if_handle,
				      PORT_FWD_TYPE_PASSTHRU, 0);

	if (adapter->num_vfs)
		be_vf_setup(adapter);

	status = be_cmd_get_phy_info(adapter);
	if (!status && be_pause_supported(adapter))
		adapter->phy.fc_autoneg = 1;

	if (be_physfn(adapter) && !lancer_chip(adapter))
		be_cmd_set_features(adapter);

	be_schedule_worker(adapter);
	adapter->flags |= BE_FLAGS_SETUP_DONE;
	return 0;
err:
	be_clear(adapter);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
173
40.05%
15
42.86%
Somnath Kotur
87
20.14%
5
14.29%
Kalesh Purayil
37
8.56%
3
8.57%
Ajit Khaparde
36
8.33%
4
11.43%
Suresh Reddy
30
6.94%
2
5.71%
Padmanabh Ratnakar
30
6.94%
2
5.71%
Vasundhara Volam
21
4.86%
3
8.57%
Sriharsha Basavapatna
18
4.17%
1
2.86%
Total
432
100.00%
35
100.00%

#ifdef CONFIG_NET_POLL_CONTROLLER


static void be_netpoll(struct net_device *netdev)
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_eq_obj *eqo;
	int i;

	for_all_evt_queues(adapter, eqo, i) {
		be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0);
		napi_schedule(&eqo->napi);
	}
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivan Vecera
36
52.94%
1
25.00%
Sathya Perla
30
44.12%
2
50.00%
Padmanabh Ratnakar
2
2.94%
1
25.00%
Total
68
100.00%
4
100.00%

#endif



int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
{
	const struct firmware *fw;
	int status;

	if (!netif_running(adapter->netdev)) {
		dev_err(&adapter->pdev->dev,
			"Firmware load not allowed (interface is down)\n");
		return -ENETDOWN;
	}

	status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
	if (status)
		goto fw_exit;

	dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);

	if (lancer_chip(adapter))
		status = lancer_fw_download(adapter, fw);
	else
		status = be_fw_download(adapter, fw);

	if (!status)
		be_cmd_get_fw_ver(adapter);

fw_exit:
	release_firmware(fw);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Shripad Nunjundarao
113
83.70%
1
25.00%
Ajit Khaparde
11
8.15%
1
25.00%
Somnath Kotur
10
7.41%
1
25.00%
Kalesh Purayil
1
0.74%
1
25.00%
Total
135
100.00%
4
100.00%



static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
				 u16 flags)
{
	struct be_adapter *adapter = netdev_priv(dev);
	struct nlattr *attr, *br_spec;
	int rem;
	int status = 0;
	u16 mode = 0;

	if (!sriov_enabled(adapter))
		return -EOPNOTSUPP;

	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
	if (!br_spec)
		return -EINVAL;

	nla_for_each_nested(attr, br_spec, rem) {
		if (nla_type(attr) != IFLA_BRIDGE_MODE)
			continue;

		if (nla_len(attr) < sizeof(mode))
			return -EINVAL;

		mode = nla_get_u16(attr);
		if (BE3_chip(adapter) && mode == BRIDGE_MODE_VEPA)
			return -EOPNOTSUPP;

		if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
			return -EINVAL;

		status = be_cmd_set_hsw_config(adapter, 0, 0,
					       adapter->if_handle,
					       mode == BRIDGE_MODE_VEPA ?
					       PORT_FWD_TYPE_VEPA :
					       PORT_FWD_TYPE_VEB, 0);
		if (status)
			goto err;

		dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
			 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");

		return status;
	}
err:
	dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
		mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");

	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
193
81.09%
1
16.67%
Thomas Graf
25
10.50%
2
33.33%
Suresh Reddy
15
6.30%
1
16.67%
Roopa Prabhu
3
1.26%
1
16.67%
Kalesh Purayil
2
0.84%
1
16.67%
Total
238
100.00%
6
100.00%



static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
				 struct net_device *dev, u32 filter_mask,
				 int nlflags)
{
	struct be_adapter *adapter = netdev_priv(dev);
	int status = 0;
	u8 hsw_mode;

	/* BE and Lancer chips support VEB mode only */
	if (BEx_chip(adapter) || lancer_chip(adapter)) {
		/* VEB is disabled in non-SR-IOV profiles on BE3/Lancer */
		if (!pci_sriov_get_totalvfs(adapter->pdev))
			return 0;
		hsw_mode = PORT_FWD_TYPE_VEB;
	} else {
		status = be_cmd_get_hsw_config(adapter, NULL, 0,
					       adapter->if_handle, &hsw_mode,
					       NULL);
		if (status)
			return 0;

		if (hsw_mode == PORT_FWD_TYPE_PASSTHRU)
			return 0;
	}

	return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
				       hsw_mode == PORT_FWD_TYPE_VEPA ?
				       BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB,
				       0, 0, nlflags, filter_mask, NULL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ajit Khaparde
110
74.32%
1
14.29%
Ivan Vecera
14
9.46%
1
14.29%
Kalesh Purayil
11
7.43%
2
28.57%
Scott Feldman
8
5.41%
2
28.57%
Nicolas Dichtel
5
3.38%
1
14.29%
Total
148
100.00%
7
100.00%



static struct be_cmd_work *be_alloc_work(struct be_adapter *adapter,
					 void (*func)(struct work_struct *))
{
	struct be_cmd_work *work;

	work = kzalloc(sizeof(*work), GFP_ATOMIC);
	if (!work) {
		dev_err(&adapter->pdev->dev,
			"be_work memory allocation failed\n");
		return NULL;
	}

	INIT_WORK(&work->work, func);
	work->adapter = adapter;
	return work;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
83
100.00%
1
100.00%
Total
83
100.00%
1
100.00%

/* VxLAN offload Notes:
 *
 * The stack defines tunnel offload flags (hw_enc_features) for IP and doesn't
 * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload
 * is expected to work across all types of IP tunnels once exported. Skyhawk
 * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN
 * offloads in hw_enc_features only when a VxLAN port is added. If other (non
 * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for
 * those other tunnels are unexported on the fly through ndo_features_check().
 *
 * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack
 * adds more than one port, disable offloads and don't re-enable them again
 * until after all the tunnels are removed.
 */


static void be_work_add_vxlan_port(struct work_struct *work)
{
	struct be_cmd_work *cmd_work =
				container_of(work, struct be_cmd_work, work);
	struct be_adapter *adapter = cmd_work->adapter;
	struct net_device *netdev = adapter->netdev;
	struct device *dev = &adapter->pdev->dev;
	__be16 port = cmd_work->info.vxlan_port;
	int status;

	if (adapter->vxlan_port == port && adapter->vxlan_port_count) {
		adapter->vxlan_port_aliases++;
		goto done;
	}

	if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) {
		dev_info(dev,
			 "Only one UDP port supported for VxLAN offloads\n");
		dev_info(dev, "Disabling VxLAN offloads\n");
		adapter->vxlan_port_count++;
		goto err;
	}

	if (adapter->vxlan_port_count++ >= 1)
		goto done;

	status = be_cmd_manage_iface(adapter, adapter->if_handle,
				     OP_CONVERT_NORMAL_TO_TUNNEL);
	if (status) {
		dev_warn(dev, "Failed to convert normal interface to tunnel\n");
		goto err;
	}

	status = be_cmd_set_vxlan_port(adapter, port);
	if (status) {
		dev_warn(dev, "Failed to add VxLAN port\n");
		goto err;
	}
	adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS;
	adapter->vxlan_port = port;

	netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
				   NETIF_F_TSO | NETIF_F_TSO6 |
				   NETIF_F_GSO_UDP_TUNNEL;
	netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
	netdev->features |= NETIF_F_GSO_UDP_TUNNEL;

	dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n",
		 be16_to_cpu(port));
	goto done;
err:
	be_disable_vxlan_offloads(adapter);
done:
	kfree(cmd_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
184
72.16%
2
33.33%
Sriharsha Basavapatna
46
18.04%
2
33.33%
Jiri Benc
19
7.45%
1
16.67%
Alexander Duyck
6
2.35%
1
16.67%
Total
255
100.00%
6
100.00%



static void be_work_del_vxlan_port(struct work_struct *work)
{
	struct be_cmd_work *cmd_work =
				container_of(work, struct be_cmd_work, work);
	struct be_adapter *adapter = cmd_work->adapter;
	__be16 port = cmd_work->info.vxlan_port;

	if (adapter->vxlan_port != port)
		goto done;

	if (adapter->vxlan_port_aliases) {
		adapter->vxlan_port_aliases--;
		goto out;
	}

	be_disable_vxlan_offloads(adapter);

	dev_info(&adapter->pdev->dev,
		 "Disabled VxLAN offloads for UDP port %d\n",
		 be16_to_cpu(port));
done:
	adapter->vxlan_port_count--;
out:
	kfree(cmd_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
76
71.03%
2
40.00%
Jiri Benc
13
12.15%
1
20.00%
Sriharsha Basavapatna
10
9.35%
1
20.00%
Alexander Duyck
8
7.48%
1
20.00%
Total
107
100.00%
5
100.00%



static void be_cfg_vxlan_port(struct net_device *netdev,
			      struct udp_tunnel_info *ti,
			      void (*func)(struct work_struct *))
{
	struct be_adapter *adapter = netdev_priv(netdev);
	struct be_cmd_work *cmd_work;

	if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
		return;

	if (lancer_chip(adapter) || BEx_chip(adapter) || be_is_mc(adapter))
		return;

	cmd_work = be_alloc_work(adapter, func);
	if (cmd_work) {
		cmd_work->info.vxlan_port = ti->port;
		queue_work(be_wq, &cmd_work->work);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
104
100.00%
1
100.00%
Total
104
100.00%
1
100.00%



static void be_del_vxlan_port(struct net_device *netdev,
			      struct udp_tunnel_info *ti)
{
	be_cfg_vxlan_port(netdev, ti, be_work_del_vxlan_port);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
25
100.00%
1
100.00%
Total
25
100.00%
1
100.00%



static void be_add_vxlan_port(struct net_device *netdev,
			      struct udp_tunnel_info *ti)
{
	be_cfg_vxlan_port(netdev, ti, be_work_add_vxlan_port);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
25
100.00%
2
100.00%
Total
25
100.00%
2
100.00%



static netdev_features_t be_features_check(struct sk_buff *skb,
					   struct net_device *dev,
					   netdev_features_t features)
{
	struct be_adapter *adapter = netdev_priv(dev);
	u8 l4_hdr = 0;

	/* The code below restricts offload features for some tunneled packets.
         * Offload features for normal (non tunnel) packets are unchanged.
         */
	if (!skb->encapsulation ||
	    !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
		return features;

	/* It's an encapsulated packet and VxLAN offloads are enabled. We
         * should disable tunnel offload features if it's not a VxLAN packet,
         * as tunnel offloads have been enabled only for VxLAN. This is done to
         * allow other tunneled traffic like GRE work fine while VxLAN
         * offloads are configured in Skyhawk-R.
         */
	switch (vlan_get_protocol(skb)) {
	case htons(ETH_P_IP):
		l4_hdr = ip_hdr(skb)->protocol;
		break;
	case htons(ETH_P_IPV6):
		l4_hdr = ipv6_hdr(skb)->nexthdr;
		break;
	default:
		return features;
	}

	if (l4_hdr != IPPROTO_UDP ||
	    skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
	    skb->inner_protocol != htons(ETH_P_TEB) ||
	    skb_inner_mac_header(skb) - skb_transport_header(skb) !=
		sizeof(struct udphdr) + sizeof(struct vxlanhdr) ||
	    !adapter->vxlan_port ||
	    udp_hdr(skb)->dest != adapter->vxlan_port)
		return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);

	return features;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
130
75.58%
1
20.00%
Joe Stringer
19
11.05%
1
20.00%
Sabrina Dubroca
16
9.30%
1
20.00%
Jesse Gross
6
3.49%
1
20.00%
Tom Herbert
1
0.58%
1
20.00%
Total
172
100.00%
5
100.00%



static int be_get_phys_port_id(struct net_device *dev,
			       struct netdev_phys_item_id *ppid)
{
	int i, id_len = CNTL_SERIAL_NUM_WORDS * CNTL_SERIAL_NUM_WORD_SZ + 1;
	struct be_adapter *adapter = netdev_priv(dev);
	u8 *id;

	if (MAX_PHYS_ITEM_ID_LEN < id_len)
		return -ENOSPC;

	ppid->id[0] = adapter->hba_port_num + 1;
	id = &ppid->id[1];
	for (i = CNTL_SERIAL_NUM_WORDS - 1; i >= 0;
	     i--, id += CNTL_SERIAL_NUM_WORD_SZ)
		memcpy(id, &adapter->serial_num[i], CNTL_SERIAL_NUM_WORD_SZ);

	ppid->id_len = id_len;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
117
100.00%
1
100.00%
Total
117
100.00%
1
100.00%



static void be_set_rx_mode(struct net_device *dev)
{
	struct be_adapter *adapter = netdev_priv(dev);
	struct be_cmd_work *work;

	work = be_alloc_work(adapter, be_work_set_rx_mode);
	if (work)
		queue_work(be_wq, &work->work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
49
100.00%
1
100.00%
Total
49
100.00%
1
100.00%


static const struct net_device_ops be_netdev_ops = {
	.ndo_open		= be_open,
	.ndo_stop		= be_close,
	.ndo_start_xmit		= be_xmit,
	.ndo_set_rx_mode	= be_set_rx_mode,
	.ndo_set_mac_address	= be_mac_addr_set,
	.ndo_get_stats64	= be_get_stats64,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_vlan_rx_add_vid	= be_vlan_add_vid,
	.ndo_vlan_rx_kill_vid	= be_vlan_rem_vid,
	.ndo_set_vf_mac		= be_set_vf_mac,
	.ndo_set_vf_vlan	= be_set_vf_vlan,
	.ndo_set_vf_rate	= be_set_vf_tx_rate,
	.ndo_get_vf_config	= be_get_vf_config,
	.ndo_set_vf_link_state  = be_set_vf_link_state,
	.ndo_set_vf_spoofchk    = be_set_vf_spoofchk,
#ifdef CONFIG_NET_POLL_CONTROLLER
	.ndo_poll_controller	= be_netpoll,
#endif
	.ndo_bridge_setlink	= be_ndo_bridge_setlink,
	.ndo_bridge_getlink	= be_ndo_bridge_getlink,
	.ndo_udp_tunnel_add	= be_add_vxlan_port,
	.ndo_udp_tunnel_del	= be_del_vxlan_port,
	.ndo_features_check	= be_features_check,
	.ndo_get_phys_port_id   = be_get_phys_port_id,
};



static void be_netdev_init(struct net_device *netdev)
{
	struct be_adapter *adapter = netdev_priv(netdev);

	netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
		NETIF_F_HW_VLAN_CTAG_TX;
	if ((be_if_cap_flags(adapter) & BE_IF_FLAGS_RSS))
		netdev->hw_features |= NETIF_F_RXHASH;

	netdev->features |= netdev->hw_features |
		NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;

	netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;

	netdev->priv_flags |= IFF_UNICAST_FLT;

	netdev->flags |= IFF_MULTICAST;

	netif_set_gso_max_size(netdev, BE_MAX_GSO_SIZE - ETH_HLEN);

	netdev->netdev_ops = &be_netdev_ops;

	netdev->ethtool_ops = &be_ethtool_ops;

	/* MTU range: 256 - 9000 */
	netdev->min_mtu = BE_MIN_MTU;
	netdev->max_mtu = BE_MAX_MTU;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
47
36.15%
2
11.11%
Ajit Khaparde
40
30.77%
8
44.44%
Michał Mirosław
20
15.38%
3
16.67%
Jarod Wilson
13
10.00%
1
5.56%
Patrick McHardy
3
2.31%
1
5.56%
Wilfried Klaebe
3
2.31%
1
5.56%
Padmanabh Ratnakar
2
1.54%
1
5.56%
Sarveshwar Bandi
2
1.54%
1
5.56%
Total
130
100.00%
18
100.00%



static void be_cleanup(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;

	rtnl_lock();
	netif_device_detach(netdev);
	if (netif_running(netdev))
		be_close(netdev);
	rtnl_unlock();

	be_clear(adapter);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kalesh Purayil
48
100.00%
1
100.00%
Total
48
100.00%
1
100.00%



static int be_resume(struct be_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	int status;

	status = be_setup(adapter);
	if (status)
		return status;

	rtnl_lock();
	if (netif_running(netdev))
		status = be_open(netdev);
	rtnl_unlock();

	if (status)
		return status;

	netif_device_attach(netdev);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
42
58.33%
3
50.00%
Kalesh Purayil
24
33.33%
2
33.33%
Hannes Frederic Sowa
6
8.33%
1
16.67%
Total
72
100.00%
6
100.00%



static void be_soft_reset(struct be_adapter *adapter)
{
	u32 val;

	dev_info(&adapter->pdev->dev, "Initiating chip soft reset\n");
	val = ioread32(adapter->pcicfg + SLIPORT_SOFTRESET_OFFSET);
	val |= SLIPORT_SOFTRESET_SR_MASK;
	iowrite32(val, adapter->pcicfg + SLIPORT_SOFTRESET_OFFSET);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
29
55.77%
1
20.00%
Kalesh Purayil
14
26.92%
1
20.00%
Padmanabh Ratnakar
7
13.46%
1
20.00%
Sathya Perla
2
3.85%
2
40.00%
Total
52
100.00%
5
100.00%



static bool be_err_is_recoverable(struct be_adapter *adapter)
{
	struct be_error_recovery *err_rec = &adapter->error_recovery;
	unsigned long initial_idle_time =
		msecs_to_jiffies(ERR_RECOVERY_IDLE_TIME);
	unsigned long recovery_interval =
		msecs_to_jiffies(ERR_RECOVERY_INTERVAL);
	u16 ue_err_code;
	u32 val;

	val = be_POST_stage_get(adapter);
	if ((val & POST_STAGE_RECOVERABLE_ERR) != POST_STAGE_RECOVERABLE_ERR)
		return false;
	ue_err_code = val & POST_ERR_RECOVERY_CODE_MASK;
	if (ue_err_code == 0)
		return false;

	dev_err(&adapter->pdev->dev, "Recoverable HW error code: 0x%x\n",
		ue_err_code);

	if (jiffies - err_rec->probe_time <= initial_idle_time) {
		dev_err(&adapter->pdev->dev,
			"Cannot recover within %lu sec from driver load\n",
			jiffies_to_msecs(initial_idle_time) / MSEC_PER_SEC);
		return false;
	}

	if (err_rec->last_recovery_time &&
	    (jiffies - err_rec->last_recovery_time <= recovery_interval)) {
		dev_err(&adapter->pdev->dev,
			"Cannot recover within %lu sec from last recovery\n",
			jiffies_to_msecs(recovery_interval) / MSEC_PER_SEC);
		return false;
	}

	if (ue_err_code == err_rec->last_err_code) {
		dev_err(&adapter->pdev->dev,
			"Cannot recover from a consecutive TPE error\n");
		return false;
	}

	err_rec->last_recovery_time = jiffies;
	err_rec->last_err_code = ue_err_code;
	return true;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
182
87.50%
1
14.29%
Sathya Perla
17
8.17%
3
42.86%
Padmanabh Ratnakar
7
3.37%
2
28.57%
Venkat Duvvuru
2
0.96%
1
14.29%
Total
208
100.00%
7
100.00%



static int be_tpe_recover(struct be_adapter *adapter)
{
	struct be_error_recovery *err_rec = &adapter->error_recovery;
	int status = -EAGAIN;
	u32 val;

	switch (err_rec->recovery_state) {
	case ERR_RECOVERY_ST_NONE:
		err_rec->recovery_state = ERR_RECOVERY_ST_DETECT;
		err_rec->resched_delay = ERR_RECOVERY_UE_DETECT_DURATION;
		break;

	case ERR_RECOVERY_ST_DETECT:
		val = be_POST_stage_get(adapter);
		if ((val & POST_STAGE_RECOVERABLE_ERR) !=
		    POST_STAGE_RECOVERABLE_ERR) {
			dev_err(&adapter->pdev->dev,
				"Unrecoverable HW error detected: 0x%x\n", val);
			status = -EINVAL;
			err_rec->resched_delay = 0;
			break;
		}

		dev_err(&adapter->pdev->dev, "Recoverable HW error detected\n");

		/* Only PF0 initiates Chip Soft Reset. But PF0 must wait UE2SR
                 * milliseconds before it checks for final error status in
                 * SLIPORT_SEMAPHORE to determine if recovery criteria is met.
                 * If it does, then PF0 initiates a Soft Reset.
                 */
		if (adapter->pf_num == 0) {
			err_rec->recovery_state = ERR_RECOVERY_ST_RESET;
			err_rec->resched_delay = err_rec->ue_to_reset_time -
					ERR_RECOVERY_UE_DETECT_DURATION;
			break;
		}

		err_rec->recovery_state = ERR_RECOVERY_ST_PRE_POLL;
		err_rec->resched_delay = err_rec->ue_to_poll_time -
					ERR_RECOVERY_UE_DETECT_DURATION;
		break;

	case ERR_RECOVERY_ST_RESET:
		if (!be_err_is_recoverable(adapter)) {
			dev_err(&adapter->pdev->dev,
				"Failed to meet recovery criteria\n");
			status = -EIO;
			err_rec->resched_delay = 0;
			break;
		}
		be_soft_reset(adapter);
		err_rec->recovery_state = ERR_RECOVERY_ST_PRE_POLL;
		err_rec->resched_delay = err_rec->ue_to_poll_time -
					err_rec->ue_to_reset_time;
		break;

	case ERR_RECOVERY_ST_PRE_POLL:
		err_rec->recovery_state = ERR_RECOVERY_ST_REINIT;
		err_rec->resched_delay = 0;
		status = 0;			/* done */
		break;

	default:
		status = -EINVAL;
		err_rec->resched_delay = 0;
		break;
	}

	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
257
100.00%
1
100.00%
Total
257
100.00%
1
100.00%



static int be_err_recover(struct be_adapter *adapter)
{
	int status;

	if (!lancer_chip(adapter)) {
		if (!adapter->error_recovery.recovery_supported ||
		    adapter->priv_flags & BE_DISABLE_TPE_RECOVERY)
			return -EIO;
		status = be_tpe_recover(adapter);
		if (status)
			goto err;
	}

	/* Wait for adapter to reach quiescent state before
         * destroying queues
         */
	status = be_fw_wait_ready(adapter);
	if (status)
		goto err;

	adapter->flags |= BE_FLAGS_TRY_RECOVERY;

	be_cleanup(adapter);

	status = be_resume(adapter);
	if (status)
		goto err;

	adapter->flags &= ~BE_FLAGS_TRY_RECOVERY;

err:
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
109
100.00%
1
100.00%
Total
109
100.00%
1
100.00%



static void be_err_detection_task(struct work_struct *work)
{
	struct be_error_recovery *err_rec =
			container_of(work, struct be_error_recovery,
				     err_detection_work.work);
	struct be_adapter *adapter =
			container_of(err_rec, struct be_adapter,
				     error_recovery);
	u32 resched_delay = ERR_RECOVERY_DETECTION_DELAY;
	struct device *dev = &adapter->pdev->dev;
	int recovery_status;

	be_detect_error(adapter);
	if (!be_check_error(adapter, BE_ERROR_HW))
		goto reschedule_task;

	recovery_status = be_err_recover(adapter);
	if (!recovery_status) {
		err_rec->recovery_retries = 0;
		err_rec->recovery_state = ERR_RECOVERY_ST_NONE;
		dev_info(dev, "Adapter recovery successful\n");
		goto reschedule_task;
	} else if (!lancer_chip(adapter) && err_rec->resched_delay) {
		/* BEx/SH recovery state machine */
		if (adapter->pf_num == 0 &&
		    err_rec->recovery_state > ERR_RECOVERY_ST_DETECT)
			dev_err(&adapter->pdev->dev,
				"Adapter recovery in progress\n");
		resched_delay = err_rec->resched_delay;
		goto reschedule_task;
	} else if (lancer_chip(adapter) && be_virtfn(adapter)) {
		/* For VFs, check if PF have allocated resources
                 * every second.
                 */
		dev_err(dev, "Re-trying adapter recovery\n");
		goto reschedule_task;
	} else if (lancer_chip(adapter) && err_rec->recovery_retries++ <
		   ERR_RECOVERY_MAX_RETRY_COUNT) {
		/* In case of another error during recovery, it takes 30 sec
                 * for adapter to come out of error. Retry error recovery after
                 * this time interval.
                 */
		dev_err(&adapter->pdev->dev, "Re-trying adapter recovery\n");
		resched_delay = ERR_RECOVERY_RETRY_DELAY;
		goto reschedule_task;
	} else {
		dev_err(dev, "Adapter recovery failed\n");
		dev_err(dev, "Please reboot server to recover\n");
	}

	return;

reschedule_task:
	be_schedule_err_detection(adapter, resched_delay);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sriharsha Basavapatna
169
65.50%
1
12.50%
Padmanabh Ratnakar
72
27.91%
2
25.00%
Sathya Perla
17
6.59%
5
62.50%
Total
258
100.00%
8
100.00%



static void be_log_sfp_info(struct be_adapter *adapter)
{
	int status;

	status = be_cmd_query_sfp_info(adapter);
	if (!status) {
		dev_err(&adapter->pdev->dev,
			"Port %c: %s Vendor: %s part no: %s",
			adapter->port_name,
			be_misconfig_evt_port_state[adapter->phy_state],
			adapter->phy.vendor_name,
			adapter->phy.vendor_pn);
	}
	adapter->flags &= ~BE_FLAGS_PHY_MISCONFIGURED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
58
82.86%
3
60.00%
Ajit Khaparde
9
12.86%
1
20.00%
Ivan Vecera
3
4.29%
1
20.00%
Total
70
100.00%
5
100.00%



static void be_worker(struct work_struct *work)
{
	struct be_adapter *adapter =
		container_of(work, struct be_adapter, work.work);
	struct be_rx_obj *rxo;
	int i;

	if (be_physfn(adapter) &&
	    MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
		be_cmd_get_die_temperature(adapter);

	/* when interrupts are not yet enabled, just reap any pending
         * mcc completions
         */
	if (!netif_running(adapter->netdev)) {
		local_bh_disable();
		be_process_mcc(adapter);
		local_bh_enable();
		goto reschedule;
	}

	if (!adapter->stats_cmd_sent) {
		if (lancer_chip(adapter))
			lancer_cmd_get_pport_stats(adapter,
						   &adapter->stats_cmd);
		else
			be_cmd_get_stats(adapter, &adapter->stats_cmd);
	}

	for_all_rx_queues(adapter, rxo, i) {
		/* Replenish RX-queues starved due to memory
                 * allocation failures.
                 */
		if (rxo->rx_post_starved)
			be_post_rx_frags(rxo, GFP_KERNEL, MAX_RX_POST);
	}

	/* EQ-delay update for Skyhawk is done while notifying EQ */
	if (!skyhawk_chip(adapter))
		be_eqd_update(adapter, false);

	if (adapter->flags & BE_FLAGS_PHY_MISCONFIGURED)
		be_log_sfp_info(adapter);

reschedule:
	adapter->work_counter++;
	queue_delayed_work(be_wq, &adapter->work, msecs_to_jiffies(1000));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
159
78.71%
8
61.54%
Guilherme G. Piccoli
25
12.38%
1
7.69%
Padmanabh Ratnakar
11
5.45%
1
7.69%
Sarveshwar Bandi
4
1.98%
1
7.69%
Ivan Vecera
2
0.99%
1
7.69%
Ajit Khaparde
1
0.50%
1
7.69%
Total
202
100.00%
13
100.00%



static void be_unmap_pci_bars(struct be_adapter *adapter)
{
	if (adapter->csr)
		pci_iounmap(adapter->pdev, adapter->csr);
	if (adapter->db)
		pci_iounmap(adapter->pdev, adapter->db);
	if (adapter->pcicfg && adapter->pcicfg_mapped)
		pci_iounmap(adapter->pdev, adapter->pcicfg);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
45
68.18%
2
66.67%
Douglas Miller
21
31.82%
1
33.33%
Total
66
100.00%
3
100.00%



static int db_bar(struct be_adapter *adapter)
{
	if (lancer_chip(adapter) || be_virtfn(adapter))
		return 0;
	else
		return 4;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
24
80.00%
3
60.00%
Ajit Khaparde
5
16.67%
1
20.00%
Kalesh Purayil
1
3.33%
1
20.00%
Total
30
100.00%
5
100.00%



static int be_roce_map_pci_bars(struct be_adapter *adapter)
{
	if (skyhawk_chip(adapter)) {
		adapter->roce_db.size = 4096;
		adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
							      db_bar(adapter));
		adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
							       db_bar(adapter));
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
51
76.12%
2
40.00%
Selvin Xavier
10
14.93%
1
20.00%
Ajit Khaparde
5
7.46%
1
20.00%
Ivan Vecera
1
1.49%
1
20.00%
Total
67
100.00%
5
100.00%



static int be_map_pci_bars(struct be_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	u8 __iomem *addr;
	u32 sli_intf;

	pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
	adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
				SLI_INTF_FAMILY_SHIFT;
	adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;

	if (BEx_chip(adapter) && be_physfn(adapter)) {
		adapter->csr = pci_iomap(pdev, 2, 0);
		if (!adapter->csr)
			return -ENOMEM;
	}

	addr = pci_iomap(pdev, db_bar(adapter), 0);
	if (!addr)
		goto pci_map_err;
	adapter->db = addr;

	if (skyhawk_chip(adapter) || BEx_chip(adapter)) {
		if (be_physfn(adapter)) {
			/* PCICFG is the 2nd BAR in BE2 */
			addr = pci_iomap(pdev, BE2_chip(adapter) ? 1 : 0, 0);
			if (!addr)
				goto pci_map_err;
			adapter->pcicfg = addr;
			adapter->pcicfg_mapped = true;
		} else {
			adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
			adapter->pcicfg_mapped = false;
		}
	}

	be_roce_map_pci_bars(adapter);
	return 0;

pci_map_err:
	dev_err(&pdev->dev, "Error in mapping PCI BARs\n");
	be_unmap_pci_bars(adapter);
	return -ENOMEM;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
135
55.79%
5
33.33%
David S. Miller
57
23.55%
1
6.67%
Ajit Khaparde
16
6.61%
2
13.33%
Douglas Miller
12
4.96%
1
6.67%
Somnath Kotur
10
4.13%
2
13.33%
Padmanabh Ratnakar
10
4.13%
3
20.00%
Selvin Xavier
2
0.83%
1
6.67%
Total
242
100.00%
15
100.00%



static void be_drv_cleanup(struct be_adapter *adapter)
{
	struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
	struct device *dev = &adapter->pdev->dev;

	if (mem->va)
		dma_free_coherent(dev, mem->size, mem->va, mem->dma);

	mem = &adapter->rx_filter;
	if (mem->va)
		dma_free_coherent(dev, mem->size, mem->va, mem->dma);

	mem = &adapter->stats_cmd;
	if (mem->va)
		dma_free_coherent(dev, mem->size, mem->va, mem->dma);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
72
62.07%
2
50.00%
Padmanabh Ratnakar
31
26.72%
1
25.00%
Somnath Kotur
13
11.21%
1
25.00%
Total
116
100.00%
4
100.00%

/* Allocate and initialize various fields in be_adapter struct */


static int be_drv_init(struct be_adapter *adapter)
{
	struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
	struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
	struct be_dma_mem *rx_filter = &adapter->rx_filter;
	struct be_dma_mem *stats_cmd = &adapter->stats_cmd;
	struct device *dev = &adapter->pdev->dev;
	int status = 0;

	mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
	mbox_mem_alloc->va = dma_zalloc_coherent(dev, mbox_mem_alloc->size,
						 &mbox_mem_alloc->dma,
						 GFP_KERNEL);
	if (!mbox_mem_alloc->va)
		return -ENOMEM;

	mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
	mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
	mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);

	rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
	rx_filter->va = dma_zalloc_coherent(dev, rx_filter->size,
					    &rx_filter->dma, GFP_KERNEL);
	if (!rx_filter->va) {
		status = -ENOMEM;
		goto free_mbox;
	}

	if (lancer_chip(adapter))
		stats_cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
	else if (BE2_chip(adapter))
		stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
	else if (BE3_chip(adapter))
		stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
	else
		stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
	stats_cmd->va = dma_zalloc_coherent(dev, stats_cmd->size,
					    &stats_cmd->dma, GFP_KERNEL);
	if (!stats_cmd->va) {
		status = -ENOMEM;
		goto free_rx_filter;
	}

	mutex_init(&adapter->mbox_lock);
	mutex_init(&adapter->mcc_lock);
	mutex_init(&adapter->rx_filter_lock);
	spin_lock_init(&adapter->mcc_cq_lock);
	init_completion(&adapter->et_cmd_compl);

	pci_save_state(adapter->pdev);

	INIT_DELAYED_WORK(&adapter->work, be_worker);

	adapter->error_recovery.recovery_state = ERR_RECOVERY_ST_NONE;
	adapter->error_recovery.resched_delay = 0;
	INIT_DELAYED_WORK(&adapter->error_recovery.err_detection_work,
			  be_err_detection_task);

	adapter->rx_fc = true;
	adapter->tx_fc = true;

	/* Must be a power of 2 or else MODULO will BUG_ON */
	adapter->be_get_temp_freq = 64;

	return 0;

free_rx_filter:
	dma_free_coherent(dev, rx_filter->size, rx_filter->va, rx_filter->dma);
free_mbox:
	dma_free_coherent(dev, mbox_mem_alloc->size, mbox_mem_alloc->va,
			  mbox_mem_alloc->dma);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
342
77.20%
3
33.33%
Padmanabh Ratnakar
48
10.84%
2
22.22%
Vasundhara Volam
28
6.32%
1
11.11%
Sriharsha Basavapatna
20
4.51%
2
22.22%
Somnath Kotur
5
1.13%
1
11.11%
Total
443
100.00%
9
100.00%



static void be_remove(struct pci_dev *pdev)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);

	if (!adapter)
		return;

	be_roce_dev_remove(adapter);
	be_intr_set(adapter, false);

	be_cancel_err_detection(adapter);

	unregister_netdev(adapter->netdev);

	be_clear(adapter);

	if (!pci_vfs_assigned(adapter->pdev))
		be_cmd_reset_function(adapter);

	/* tell fw we're done with firing cmds */
	be_cmd_fw_clean(adapter);

	be_unmap_pci_bars(adapter);
	be_drv_cleanup(adapter);

	pci_disable_pcie_error_reporting(pdev);

	pci_release_regions(pdev);
	pci_disable_device(pdev);

	free_netdev(adapter->netdev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
49
44.95%
2
28.57%
Padmanabh Ratnakar
42
38.53%
3
42.86%
Somnath Kotur
15
13.76%
1
14.29%
Vasundhara Volam
3
2.75%
1
14.29%
Total
109
100.00%
7
100.00%



static ssize_t be_hwmon_show_temp(struct device *dev,
				  struct device_attribute *dev_attr,
				  char *buf)
{
	struct be_adapter *adapter = dev_get_drvdata(dev);

	/* Unit: millidegree Celsius */
	if (adapter->hwmon_info.be_on_die_temp == BE_INVALID_DIE_TEMP)
		return -EIO;
	else
		return sprintf(buf, "%u\n",
			       adapter->hwmon_info.be_on_die_temp * 1000);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkat Duvvuru
61
98.39%
1
50.00%
Arnd Bergmann
1
1.61%
1
50.00%
Total
62
100.00%
2
100.00%

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
			  be_hwmon_show_temp, NULL, 1);


static struct attribute *be_hwmon_attrs[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	NULL
};


ATTRIBUTE_GROUPS(be_hwmon);



static char *mc_name(struct be_adapter *adapter)
{
	char *str = "";	/* default */

	switch (adapter->mc_type) {
	case UMC:
		str = "UMC";
		break;
	case FLEX10:
		str = "FLEX10";
		break;
	case vNIC1:
		str = "vNIC-1";
		break;
	case nPAR:
		str = "nPAR";
		break;
	case UFP:
		str = "UFP";
		break;
	case vNIC2:
		str = "vNIC-2";
		break;
	default:
		str = "";
	}

	return str;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
64
77.11%
1
50.00%
Sathya Perla
19
22.89%
1
50.00%
Total
83
100.00%
2
100.00%



static inline char *func_name(struct be_adapter *adapter)
{
	return be_physfn(adapter) ? "PF" : "VF";
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
23
100.00%
1
100.00%
Total
23
100.00%
1
100.00%



static inline char *nic_name(struct pci_dev *pdev)
{
	switch (pdev->device) {
	case OC_DEVICE_ID1:
		return OC_NAME;
	case OC_DEVICE_ID2:
		return OC_NAME_BE;
	case OC_DEVICE_ID3:
	case OC_DEVICE_ID4:
		return OC_NAME_LANCER;
	case BE_DEVICE_ID2:
		return BE3_NAME;
	case OC_DEVICE_ID5:
	case OC_DEVICE_ID6:
		return OC_NAME_SH;
	default:
		return BE_NAME;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
61
100.00%
1
100.00%
Total
61
100.00%
1
100.00%



static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
{
	struct be_adapter *adapter;
	struct net_device *netdev;
	int status = 0;

	dev_info(&pdev->dev, "%s version is %s\n", DRV_NAME, DRV_VER);

	status = pci_enable_device(pdev);
	if (status)
		goto do_none;

	status = pci_request_regions(pdev, DRV_NAME);
	if (status)
		goto disable_dev;
	pci_set_master(pdev);

	netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
	if (!netdev) {
		status = -ENOMEM;
		goto rel_reg;
	}
	adapter = netdev_priv(netdev);
	adapter->pdev = pdev;
	pci_set_drvdata(pdev, adapter);
	adapter->netdev = netdev;
	SET_NETDEV_DEV(netdev, &pdev->dev);

	status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
	if (!status) {
		netdev->features |= NETIF_F_HIGHDMA;
	} else {
		status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
		if (status) {
			dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
			goto free_netdev;
		}
	}

	status = pci_enable_pcie_error_reporting(pdev);
	if (!status)
		dev_info(&pdev->dev, "PCIe error reporting enabled\n");

	status = be_map_pci_bars(adapter);
	if (status)
		goto free_netdev;

	status = be_drv_init(adapter);
	if (status)
		goto unmap_bars;

	status = be_setup(adapter);
	if (status)
		goto drv_cleanup;

	be_netdev_init(netdev);
	status = register_netdev(netdev);
	if (status != 0)
		goto unsetup;

	be_roce_dev_add(adapter);

	be_schedule_err_detection(adapter, ERR_DETECTION_DELAY);
	adapter->error_recovery.probe_time = jiffies;

	/* On Die temperature not supported for VF. */
	if (be_physfn(adapter) && IS_ENABLED(CONFIG_BE2NET_HWMON)) {
		adapter->hwmon_info.hwmon_dev =
			devm_hwmon_device_register_with_groups(&pdev->dev,
							       DRV_NAME,
							       adapter,
							       be_hwmon_groups);
		adapter->hwmon_info.be_on_die_temp = BE_INVALID_DIE_TEMP;
	}

	dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
		 func_name(adapter), mc_name(adapter), adapter->port_name);

	return 0;

unsetup:
	be_clear(adapter);
drv_cleanup:
	be_drv_cleanup(adapter);
unmap_bars:
	be_unmap_pci_bars(adapter);
free_netdev:
	free_netdev(netdev);
rel_reg:
	pci_release_regions(pdev);
disable_dev:
	pci_disable_device(pdev);
do_none:
	dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
307
67.62%
13
43.33%
Padmanabh Ratnakar
46
10.13%
4
13.33%
Venkat Duvvuru
38
8.37%
1
3.33%
Ajit Khaparde
14
3.08%
2
6.67%
Somnath Kotur
14
3.08%
1
3.33%
Sriharsha Basavapatna
8
1.76%
1
3.33%
Vasundhara Volam
6
1.32%
1
3.33%
Parav Pandit
5
1.10%
1
3.33%
Arnd Bergmann
5
1.10%
1
3.33%
Yang Hongyang
4
0.88%
1
3.33%
Ivan Vecera
4
0.88%
2
6.67%
Russell King
2
0.44%
1
3.33%
Kalesh Purayil
1
0.22%
1
3.33%
Total
454
100.00%
30
100.00%



static int be_suspend(struct pci_dev *pdev, pm_message_t state)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);

	be_intr_set(adapter, false);
	be_cancel_err_detection(adapter);

	be_cleanup(adapter);

	pci_save_state(pdev);
	pci_disable_device(pdev);
	pci_set_power_state(pdev, pci_choose_state(pdev, state));
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
54
81.82%
3
50.00%
Ajit Khaparde
7
10.61%
1
16.67%
Padmanabh Ratnakar
4
6.06%
1
16.67%
Kalesh Purayil
1
1.52%
1
16.67%
Total
66
100.00%
6
100.00%



static int be_pci_resume(struct pci_dev *pdev)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);
	int status = 0;

	status = pci_enable_device(pdev);
	if (status)
		return status;

	pci_restore_state(pdev);

	status = be_resume(adapter);
	if (status)
		return status;

	be_schedule_err_detection(adapter, ERR_DETECTION_DELAY);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
60
86.96%
3
50.00%
Kalesh Purayil
5
7.25%
1
16.67%
Padmanabh Ratnakar
2
2.90%
1
16.67%
Sarveshwar Bandi
2
2.90%
1
16.67%
Total
69
100.00%
6
100.00%

/*
 * An FLR will stop BE from DMAing any data.
 */


static void be_shutdown(struct pci_dev *pdev)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);

	if (!adapter)
		return;

	be_roce_dev_shutdown(adapter);
	cancel_delayed_work_sync(&adapter->work);
	be_cancel_err_detection(adapter);

	netif_device_detach(adapter->netdev);

	be_cmd_reset_function(adapter);

	pci_disable_device(pdev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
33
53.23%
2
28.57%
Ajit Khaparde
20
32.26%
3
42.86%
Devesh Sharma
5
8.06%
1
14.29%
Padmanabh Ratnakar
4
6.45%
1
14.29%
Total
62
100.00%
7
100.00%



static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
					    pci_channel_state_t state)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);

	dev_err(&adapter->pdev->dev, "EEH error detected\n");

	be_roce_dev_remove(adapter);

	if (!be_check_error(adapter, BE_ERROR_EEH)) {
		be_set_error(adapter, BE_ERROR_EEH);

		be_cancel_err_detection(adapter);

		be_cleanup(adapter);
	}

	if (state == pci_channel_io_perm_failure)
		return PCI_ERS_RESULT_DISCONNECT;

	pci_disable_device(pdev);

	/* The error could cause the FW to trigger a flash debug dump.
         * Resetting the card while flash dump is in progress
         * can cause it not to recover; wait for it to finish.
         * Wait only for first function as it is needed only once per
         * adapter.
         */
	if (pdev->devfn == 0)
		ssleep(30);

	return PCI_ERS_RESULT_NEED_RESET;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
60
59.41%
2
22.22%
Padmanabh Ratnakar
18
17.82%
3
33.33%
Somnath Kotur
12
11.88%
2
22.22%
Venkat Duvvuru
10
9.90%
1
11.11%
Kalesh Purayil
1
0.99%
1
11.11%
Total
101
100.00%
9
100.00%



static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);
	int status;

	dev_info(&adapter->pdev->dev, "EEH reset\n");

	status = pci_enable_device(pdev);
	if (status)
		return PCI_ERS_RESULT_DISCONNECT;

	pci_set_master(pdev);
	pci_restore_state(pdev);

	/* Check if card is ok and fw is ready */
	dev_info(&adapter->pdev->dev,
		 "Waiting for FW to be ready after EEH reset\n");
	status = be_fw_wait_ready(adapter);
	if (status)
		return PCI_ERS_RESULT_DISCONNECT;

	pci_cleanup_aer_uncorrect_error_status(pdev);
	be_clear_error(adapter, BE_CLEAR_ALL);
	return PCI_ERS_RESULT_RECOVERED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
94
92.16%
3
50.00%
Somnath Kotur
4
3.92%
1
16.67%
Venkat Duvvuru
3
2.94%
1
16.67%
Padmanabh Ratnakar
1
0.98%
1
16.67%
Total
102
100.00%
6
100.00%



static void be_eeh_resume(struct pci_dev *pdev)
{
	int status = 0;
	struct be_adapter *adapter = pci_get_drvdata(pdev);

	dev_info(&adapter->pdev->dev, "EEH resume\n");

	pci_save_state(pdev);

	status = be_resume(adapter);
	if (status)
		goto err;

	be_roce_dev_add(adapter);

	be_schedule_err_detection(adapter, ERR_DETECTION_DELAY);
	return;
err:
	dev_err(&adapter->pdev->dev, "EEH resume failed\n");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
76
90.48%
2
40.00%
Padmanabh Ratnakar
7
8.33%
2
40.00%
Kalesh Purayil
1
1.19%
1
20.00%
Total
84
100.00%
5
100.00%



static int be_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
{
	struct be_adapter *adapter = pci_get_drvdata(pdev);
	struct be_resources vft_res = {0};
	int status;

	if (!num_vfs)
		be_vf_clear(adapter);

	adapter->num_vfs = num_vfs;

	if (adapter->num_vfs == 0 && pci_vfs_assigned(pdev)) {
		dev_warn(&pdev->dev,
			 "Cannot disable VFs while they are assigned\n");
		return -EBUSY;
	}

	/* When the HW is in SRIOV capable configuration, the PF-pool resources
         * are equally distributed across the max-number of VFs. The user may
         * request only a subset of the max-vfs to be enabled.
         * Based on num_vfs, redistribute the resources across num_vfs so that
         * each VF will have access to more number of resources.
         * This facility is not available in BE3 FW.
         * Also, this is done by FW in Lancer chip.
         */
	if (skyhawk_chip(adapter) && !pci_num_vf(pdev)) {
		be_calculate_vf_res(adapter, adapter->num_vfs,
				    &vft_res);
		status = be_cmd_set_sriov_config(adapter, adapter->pool_res,
						 adapter->num_vfs, &vft_res);
		if (status)
			dev_err(&pdev->dev,
				"Failed to optimize SR-IOV resources\n");
	}

	status = be_get_resources(adapter);
	if (status)
		return be_cmd_status(status);

	/* Updating real_num_tx/rx_queues() requires rtnl_lock() */
	rtnl_lock();
	status = be_update_queues(adapter);
	rtnl_unlock();
	if (status)
		return be_cmd_status(status);

	if (adapter->num_vfs)
		status = be_vf_setup(adapter);

	if (!status)
		return adapter->num_vfs;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vasundhara Volam
194
93.72%
1
50.00%
Suresh Reddy
13
6.28%
1
50.00%
Total
207
100.00%
2
100.00%


static const struct pci_error_handlers be_eeh_handlers = {
	.error_detected = be_eeh_err_detected,
	.slot_reset = be_eeh_reset,
	.resume = be_eeh_resume,
};


static struct pci_driver be_driver = {
	.name = DRV_NAME,
	.id_table = be_dev_ids,
	.probe = be_probe,
	.remove = be_remove,
	.suspend = be_suspend,
	.resume = be_pci_resume,
	.shutdown = be_shutdown,
	.sriov_configure = be_pci_sriov_configure,
	.err_handler = &be_eeh_handlers
};



static int __init be_init_module(void)
{
	int status;

	if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
	    rx_frag_size != 2048) {
		printk(KERN_WARNING DRV_NAME
			" : Module param rx_frag_size must be 2048/4096/8192."
			" Using 2048\n");
		rx_frag_size = 2048;
	}

	if (num_vfs > 0) {
		pr_info(DRV_NAME " : Module param num_vfs is obsolete.");
		pr_info(DRV_NAME " : Use sysfs method to enable VFs\n");
	}

	be_wq = create_singlethread_workqueue("be_wq");
	if (!be_wq) {
		pr_warn(DRV_NAME "workqueue creation failed\n");
		return -1;
	}

	be_err_recovery_workq =
		create_singlethread_workqueue("be_err_recover");
	if (!be_err_recovery_workq)
		pr_warn(DRV_NAME "Could not create error recovery workqueue\n");

	status = pci_register_driver(&be_driver);
	if (status) {
		destroy_workqueue(be_wq);
		be_destroy_err_recovery_workq();
	}
	return status;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
66
52.38%
2
50.00%
Sriharsha Basavapatna
40
31.75%
1
25.00%
Vasundhara Volam
20
15.87%
1
25.00%
Total
126
100.00%
4
100.00%


module_init(be_init_module);



static void __exit be_exit_module(void)
{
	pci_unregister_driver(&be_driver);

	be_destroy_err_recovery_workq();

	if (be_wq)
		destroy_workqueue(be_wq);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
24
88.89%
2
66.67%
Sriharsha Basavapatna
3
11.11%
1
33.33%
Total
27
100.00%
3
100.00%


module_exit(be_exit_module);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Sathya Perla
13714
48.61%
113
25.86%
Ajit Khaparde
3539
12.54%
66
15.10%
Sriharsha Basavapatna
2724
9.66%
16
3.66%
Vasundhara Volam
1542
5.47%
27
6.18%
Padmanabh Ratnakar
1234
4.37%
32
7.32%
Kalesh Purayil
990
3.51%
20
4.58%
Suresh Reddy
962
3.41%
18
4.12%
Somnath Kotur
896
3.18%
32
7.32%
Venkat Duvvuru
805
2.85%
8
1.83%
Ivan Vecera
327
1.16%
13
2.97%
Selvin Xavier
245
0.87%
2
0.46%
Ravikumar Nelavelli
184
0.65%
2
0.46%
Sarveshwar Bandi
164
0.58%
8
1.83%
Eric Dumazet
130
0.46%
14
3.20%
Shripad Nunjundarao
113
0.40%
1
0.23%
David S. Miller
70
0.25%
4
0.92%
Alexander Duyck
49
0.17%
3
0.69%
Parav Pandit
44
0.16%
1
0.23%
Michał Mirosław
35
0.12%
3
0.69%
Douglas Miller
33
0.12%
1
0.23%
Jiri Benc
32
0.11%
1
0.23%
John Stultz
30
0.11%
1
0.23%
Alexander Gordeev
28
0.10%
1
0.23%
Guilherme G. Piccoli
25
0.09%
1
0.23%
Thomas Graf
25
0.09%
2
0.46%
Sucheta Chakraborty
24
0.09%
1
0.23%
Joe Stringer
22
0.08%
1
0.23%
Patrick McHardy
19
0.07%
3
0.69%
Sabrina Dubroca
16
0.06%
1
0.23%
Moshe Shemesh
16
0.06%
1
0.23%
Tom Herbert
15
0.05%
3
0.69%
Ian Campbell
14
0.05%
1
0.23%
Jarod Wilson
13
0.05%
1
0.23%
Rusty Russell
13
0.05%
1
0.23%
Jiri Pirko
12
0.04%
3
0.69%
Mammatha Edhala
9
0.03%
1
0.23%
Stephen Hemminger
9
0.03%
5
1.14%
Scott Feldman
8
0.03%
2
0.46%
Eric W. Biedermann
8
0.03%
1
0.23%
Jesse Gross
8
0.03%
1
0.23%
Arnd Bergmann
6
0.02%
1
0.23%
Benoit Taine
6
0.02%
1
0.23%
Hannes Frederic Sowa
6
0.02%
1
0.23%
Paul Gortmaker
6
0.02%
2
0.46%
Joe Perches
6
0.02%
2
0.46%
Nicolas Dichtel
5
0.02%
1
0.23%
Devesh Sharma
5
0.02%
1
0.23%
Yang Hongyang
4
0.01%
1
0.23%
Dan Carpenter
3
0.01%
1
0.23%
Roopa Prabhu
3
0.01%
1
0.23%
Wilfried Klaebe
3
0.01%
1
0.23%
Ding Tianhong
2
0.01%
1
0.23%
Wei Yongjun
2
0.01%
1
0.23%
Jingoo Han
2
0.01%
1
0.23%
Russell King
2
0.01%
1
0.23%
FUJITA Tomonori
2
0.01%
2
0.46%
Rick Jones
1
0.00%
1
0.23%
Baoyou Xie
1
0.00%
1
0.23%
Total
28211
100.00%
437
100.00%
Directory: drivers/net/ethernet/emulex/benet

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