Release 4.11 drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c

Directory: drivers/net/ethernet/qlogic/netxen
/*
 * Copyright (C) 2003 - 2009 NetXen, Inc.
 * Copyright (C) 2009 - QLogic Corporation.
 * 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
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called "COPYING".
 *
 */

#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include "netxen_nic_hw.h"

#include "netxen_nic.h"

#include <linux/dma-mapping.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <linux/ipv6.h>
#include <linux/inetdevice.h>
#include <linux/sysfs.h>
#include <linux/aer.h>

MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
MODULE_LICENSE("GPL");

MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);

MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);


char netxen_nic_driver_name[] = "netxen_nic";

static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
    NETXEN_NIC_LINUX_VERSIONID;


static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;

/* Default to restricted 1G auto-neg mode */

static int wol_port_mode = 5;


static int use_msi = 1;


static int use_msi_x = 1;


static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
module_param(auto_fw_reset, int, 0644);
MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");

static int netxen_nic_probe(struct pci_dev *pdev,
		const struct pci_device_id *ent);
static void netxen_nic_remove(struct pci_dev *pdev);
static int netxen_nic_open(struct net_device *netdev);
static int netxen_nic_close(struct net_device *netdev);
static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
					       struct net_device *);
static void netxen_tx_timeout(struct net_device *netdev);
static void netxen_tx_timeout_task(struct work_struct *work);
static void netxen_fw_poll_work(struct work_struct *work);
static void netxen_schedule_work(struct netxen_adapter *adapter,
		work_func_t func, int delay);
static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
static int netxen_nic_poll(struct napi_struct *napi, int budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void netxen_nic_poll_controller(struct net_device *netdev);
#endif

static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
static void netxen_create_diag_entries(struct netxen_adapter *adapter);
static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
static int nx_dev_request_aer(struct netxen_adapter *adapter);
static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
static int netxen_can_start_firmware(struct netxen_adapter *adapter);

static irqreturn_t netxen_intr(int irq, void *data);
static irqreturn_t netxen_msi_intr(int irq, void *data);
static irqreturn_t netxen_msix_intr(int irq, void *data);

static void netxen_free_ip_list(struct netxen_adapter *, bool);
static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
static void netxen_nic_get_stats(struct net_device *dev,
				 struct rtnl_link_stats64 *stats);
static int netxen_nic_set_mac(struct net_device *netdev, void *p);

/*  PCI Device ID Table  */

#define ENTRY(device) \
	{PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
        .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}


static const struct pci_device_id netxen_pci_tbl[] = {
	ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
	ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
	ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
	ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
	ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
	ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
	ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
	ENTRY(PCI_DEVICE_ID_NX3031),
	{0,}
};

MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);


static uint32_t crb_cmd_producer[4] = {
	CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
	CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
};


void

netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
		struct nx_host_tx_ring *tx_ring)
{
	NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
}

Contributors
Person Tokens Prop Commits CommitProp
Mithlesh Thukral 17 60.71% 1 20.00%
Dhananjay Phadke 10 35.71% 3 60.00%
Amit Kumar Salecha 1 3.57% 1 20.00%
Total 28 100.00% 5 100.00%


static uint32_t crb_cmd_consumer[4] = {
	CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
	CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
};


static inline void

netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
		struct nx_host_tx_ring *tx_ring)
{
	NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
}

Contributors
Person Tokens Prop Commits CommitProp
Mithlesh Thukral 18 60.00% 1 20.00%
Dhananjay Phadke 11 36.67% 3 60.00%
Amit Kumar Salecha 1 3.33% 1 20.00%
Total 30 100.00% 5 100.00%


static uint32_t msi_tgt_status[8] = {
	ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
	ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
	ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
	ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
};


static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;



static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
{
	struct netxen_adapter *adapter = sds_ring->adapter;

	NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 18 56.25% 5 71.43%
Stephen Hemminger 13 40.62% 1 14.29%
Amit Kumar Salecha 1 3.12% 1 14.29%
Total 32 100.00% 7 100.00%



static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
{
	struct netxen_adapter *adapter = sds_ring->adapter;

	NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);

	if (!NETXEN_IS_MSI_FAMILY(adapter))
		NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 25 49.02% 6 75.00%
Stephen Hemminger 24 47.06% 1 12.50%
Amit Kumar Salecha 2 3.92% 1 12.50%
Total 51 100.00% 8 100.00%


static int

netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
{
	int size = sizeof(struct nx_host_sds_ring) * count;

	recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);

	return recv_ctx->sds_rings == NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 43 100.00% 2 100.00%
Total 43 100.00% 2 100.00%


static void

netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
{
	kfree(recv_ctx->sds_rings);
	recv_ctx->sds_rings = NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 24 100.00% 3 100.00%
Total 24 100.00% 3 100.00%


static int

netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
		return -ENOMEM;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		netif_napi_add(netdev, &sds_ring->napi,
				netxen_nic_poll, NAPI_POLL_WEIGHT);
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 92 98.92% 3 75.00%
Michal Schmidt 1 1.08% 1 25.00%
Total 93 100.00% 4 100.00%


static void

netxen_napi_del(struct netxen_adapter *adapter)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		netif_napi_del(&sds_ring->napi);
	}

	netxen_free_sds_rings(&adapter->recv_ctx);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 72 100.00% 2 100.00%
Total 72 100.00% 2 100.00%


static void

netxen_napi_enable(struct netxen_adapter *adapter)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		napi_enable(&sds_ring->napi);
		netxen_nic_enable_int(sds_ring);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 69 100.00% 2 100.00%
Total 69 100.00% 2 100.00%


static void

netxen_napi_disable(struct netxen_adapter *adapter)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		netxen_nic_disable_int(sds_ring);
		napi_synchronize(&sds_ring->napi);
		napi_disable(&sds_ring->napi);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 77 100.00% 3 100.00%
Total 77 100.00% 3 100.00%



static int nx_set_dma_mask(struct netxen_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	uint64_t mask, cmask;

	adapter->pci_using_dac = 0;

	mask = DMA_BIT_MASK(32);
	cmask = DMA_BIT_MASK(32);

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
#ifndef CONFIG_IA64
		mask = DMA_BIT_MASK(35);
#endif
	} else {
		mask = DMA_BIT_MASK(39);
		cmask = mask;
	}

	if (pci_set_dma_mask(pdev, mask) == 0 &&
		pci_set_consistent_dma_mask(pdev, cmask) == 0) {
		adapter->pci_using_dac = 1;
		return 0;
	}

	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 60 50.42% 3 33.33%
Amit S. Kale 42 35.29% 3 33.33%
Yang Hongyang 14 11.76% 1 11.11%
Mithlesh Thukral 2 1.68% 1 11.11%
Joe Perches 1 0.84% 1 11.11%
Total 119 100.00% 9 100.00%

/* Update addressable range if firmware supports it */

static int

nx_update_dma_mask(struct netxen_adapter *adapter)
{
	int change, shift, err;
	uint64_t mask, old_mask, old_cmask;
	struct pci_dev *pdev = adapter->pdev;

	change = 0;

	shift = NXRD32(adapter, CRB_DMA_SHIFT);
	if (shift > 32)
		return 0;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
		change = 1;
	else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
		change = 1;

	if (change) {
		old_mask = pdev->dma_mask;
		old_cmask = pdev->dev.coherent_dma_mask;

		mask = DMA_BIT_MASK(32+shift);

		err = pci_set_dma_mask(pdev, mask);
		if (err)
			goto err_out;

		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {

			err = pci_set_consistent_dma_mask(pdev, mask);
			if (err)
				goto err_out;
		}
		dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
	}

	return 0;

err_out:
	pci_set_dma_mask(pdev, old_mask);
	pci_set_consistent_dma_mask(pdev, old_cmask);
	return err;
}

Contributors
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Dhananjay Phadke 192 91.43% 5 71.43%
Amit S. Kale 13 6.19% 1 14.29%
Mithlesh Thukral 5 2.38% 1 14.29%
Total 210 100.00% 7 100.00%


static int

netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
{
	u32 val, timeout;

	if (first_boot == 0x55555555) {
		/* This is the first boot after power up */
		NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);

		if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
			return 0;

		/* PCI bus master workaround */
		first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
		if (!(first_boot & 0x4)) {
			first_boot |= 0x4;
			NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
			NXRD32(adapter, NETXEN_PCIE_REG(0x4));
		}

		/* This is the first boot after power up */
		first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
		if (first_boot != 0x80000f) {
			/* clear the register for future unloads/loads */
			NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
			return -EIO;
		}

		/* Start P2 boot loader */
		val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
		NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
		timeout = 0;
		do {
			msleep(1);
			val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));

			if (++timeout > 5000)
				return -EIO;

		} while (val == NETXEN_BDINFO_MAGIC);
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 178 86.41% 5 62.50%
Mithlesh Thukral 18 8.74% 1 12.50%
Amit S. Kale 10 4.85% 2 25.00%
Total 206 100.00% 8 100.00%



static void netxen_set_port_mode(struct netxen_adapter *adapter)
{
	u32 val, data;

	val = adapter->ahw.board_type;
	if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
		(val == NETXEN_BRDTYPE_P3_XG_LOM)) {
		if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
			data = NETXEN_PORT_MODE_802_3_AP;
			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
		} else if (port_mode == NETXEN_PORT_MODE_XG) {
			data = NETXEN_PORT_MODE_XG;
			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
		} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
			data = NETXEN_PORT_MODE_AUTO_NEG_1G;
			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
		} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
			data = NETXEN_PORT_MODE_AUTO_NEG_XG;
			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
		} else {
			data = NETXEN_PORT_MODE_AUTO_NEG;
			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
		}

		if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
			(wol_port_mode != NETXEN_PORT_MODE_XG) &&
			(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
			(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
			wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
		}
		NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
	}
}

Contributors
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Dhananjay Phadke 184 100.00% 2 100.00%
Total 184 100.00% 2 100.00%


#define PCI_CAP_ID_GEN  0x10



static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
{
	u32 pdevfuncsave;
	u32 c8c9value = 0;
	u32 chicken = 0;
	u32 control = 0;
	int i, pos;
	struct pci_dev *pdev;

	pdev = adapter->pdev;

	chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
	/* clear chicken3.25:24 */
	chicken &= 0xFCFFFFFF;
	/*
         * if gen1 and B0, set F1020 - if gen 2, do nothing
         * if gen2 set to F1000
         */
	pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
	if (pos == 0xC0) {
		pci_read_config_dword(pdev, pos + 0x10, &control);
		if ((control & 0x000F0000) != 0x00020000) {
			/*  set chicken3.24 if gen1 */
			chicken |= 0x01000000;
		}
		dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
		c8c9value = 0xF1000;
	} else {
		/* set chicken3.24 if gen1 */
		chicken |= 0x01000000;
		dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
		if (adapter->ahw.revision_id == NX_P3_B0)
			c8c9value = 0xF1020;
		else
			c8c9value = 0;
	}

	NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);

	if (!c8c9value)
		return;

	pdevfuncsave = pdev->devfn;
	if (pdevfuncsave & 0x07)
		return;

	for (i = 0; i < 8; i++) {
		pci_read_config_dword(pdev, pos + 8, &control);
		pci_read_config_dword(pdev, pos + 8, &control);
		pci_write_config_dword(pdev, pos + 8, c8c9value);
		pdev->devfn++;
	}
	pdev->devfn = pdevfuncsave;
}

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Rajesh K Borundia 256 100.00% 1 100.00%
Total 256 100.00% 1 100.00%



static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
{
	u32 control;

	if (pdev->msix_cap) {
		pci_read_config_dword(pdev, pdev->msix_cap, &control);
		if (enable)
			control |= PCI_MSIX_FLAGS_ENABLE;
		else
			control = 0;
		pci_write_config_dword(pdev, pdev->msix_cap, control);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 52 85.25% 1 50.00%
Yijing Wang 9 14.75% 1 50.00%
Total 61 100.00% 2 100.00%



static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
{
	int i;

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

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 41 100.00% 2 100.00%
Total 41 100.00% 2 100.00%


static int

netxen_read_mac_addr(struct netxen_adapter *adapter)
{
	int i;
	unsigned char *p;
	u64 mac_addr;
	struct net_device *netdev = adapter->netdev;
	struct pci_dev *pdev = adapter->pdev;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
			return -EIO;
	} else {
		if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
			return -EIO;
	}

	p = (unsigned char *)&mac_addr;
	for (i = 0; i < 6; i++)
		netdev->dev_addr[i] = *(p + 5 - i);

	memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);

	/* set station address */

	if (!is_valid_ether_addr(netdev->dev_addr))
		dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 154 90.59% 2 33.33%
Narender Kumar 13 7.65% 1 16.67%
Johannes Berg 1 0.59% 1 16.67%
Jiri Pirko 1 0.59% 1 16.67%
Amit Kumar Salecha 1 0.59% 1 16.67%
Total 170 100.00% 6 100.00%



static int netxen_nic_set_mac(struct net_device *netdev, void *p)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct sockaddr *addr = p;

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

	if (netif_running(netdev)) {
		netif_device_detach(netdev);
		netxen_napi_disable(adapter);
	}

	memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
	adapter->macaddr_set(adapter, addr->sa_data);

	if (netif_running(netdev)) {
		netif_device_attach(netdev);
		netxen_napi_enable(adapter);
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 111 86.72% 2 40.00%
Narender Kumar 15 11.72% 1 20.00%
Danny Kukawka 1 0.78% 1 20.00%
Stephen Hemminger 1 0.78% 1 20.00%
Total 128 100.00% 5 100.00%



static void netxen_set_multicast_list(struct net_device *dev)
{
	struct netxen_adapter *adapter = netdev_priv(dev);

	adapter->set_multi(dev);
}

Contributors
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Stephen Hemminger 27 96.43% 1 50.00%
Dhananjay Phadke 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



static netdev_features_t netxen_fix_features(struct net_device *dev,
	netdev_features_t features)
{
	if (!(features & NETIF_F_RXCSUM)) {
		netdev_info(dev, "disabling LRO as RXCSUM is off\n");

		features &= ~NETIF_F_LRO;
	}

	return features;
}

Contributors
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Michał Mirosław 40 100.00% 2 100.00%
Total 40 100.00% 2 100.00%



static int netxen_set_features(struct net_device *dev,
	netdev_features_t features)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	int hw_lro;

	if (!((dev->features ^ features) & NETIF_F_LRO))
		return 0;

	hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
	         : NETXEN_NIC_LRO_DISABLED;

	if (netxen_config_hw_lro(adapter, hw_lro))
		return -EIO;

	if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
		return -EIO;

	return 0;
}

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Michał Mirosław 91 100.00% 2 100.00%
Total 91 100.00% 2 100.00%


static const struct net_device_ops netxen_netdev_ops = {
	.ndo_open	   = netxen_nic_open,
	.ndo_stop	   = netxen_nic_close,
	.ndo_start_xmit    = netxen_nic_xmit_frame,
	.ndo_get_stats64   = netxen_nic_get_stats,
	.ndo_validate_addr = eth_validate_addr,
	.ndo_set_rx_mode   = netxen_set_multicast_list,
	.ndo_set_mac_address    = netxen_nic_set_mac,
	.ndo_change_mtu	   = netxen_nic_change_mtu,
	.ndo_tx_timeout	   = netxen_tx_timeout,
	.ndo_fix_features = netxen_fix_features,
	.ndo_set_features = netxen_set_features,
#ifdef CONFIG_NET_POLL_CONTROLLER
	.ndo_poll_controller = netxen_nic_poll_controller,
#endif
};



static inline bool netxen_function_zero(struct pci_dev *pdev)
{
	return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
}

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Manish Chopra 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
					     u32 mode)
{
	NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
}

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Manish Chopra 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
{
	return NXRD32(adapter, NETXEN_INTR_MODE_REG);
}

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Manish Chopra 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%


static void

netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
{
	struct netxen_legacy_intr_set *legacy_intrp;
	u32 tgt_status_reg, int_state_reg;

	if (adapter->ahw.revision_id >= NX_P3_B0)
		legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
	else
		legacy_intrp = &legacy_intr[0];

	tgt_status_reg = legacy_intrp->tgt_status_reg;
	int_state_reg = ISR_INT_STATE_REG;

	adapter->int_vec_bit = legacy_intrp->int_vec_bit;
	adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
	adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
						  legacy_intrp->tgt_mask_reg);
	adapter->pci_int_reg = netxen_get_ioaddr(adapter,
						 legacy_intrp->pci_int_reg);
	adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);

	if (adapter->ahw.revision_id >= NX_P3_B1)
		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
							       int_state_reg);
	else
		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
							       CRB_INT_VECTOR);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 77 50.99% 3 60.00%
Amit Kumar Salecha 58 38.41% 1 20.00%
Manish Chopra 16 10.60% 1 20.00%
Total 151 100.00% 5 100.00%



static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
				       int num_msix)
{
	struct pci_dev *pdev = adapter->pdev;
	u32 value;
	int err;

	if (adapter->msix_supported) {
		netxen_init_msix_entries(adapter, num_msix);
		err = pci_enable_msix_range(pdev, adapter->msix_entries,
					    num_msix, num_msix);
		if (err > 0) {
			adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
			netxen_set_msix_bit(pdev, 1);

			if (adapter->rss_supported)
				adapter->max_sds_rings = num_msix;

			dev_info(&pdev->dev, "using msi-x interrupts\n");
			return 0;
		}
		/* fall through for msi */
	}

	if (use_msi && !pci_enable_msi(pdev)) {
		value = msi_tgt_status[adapter->ahw.pci_func];
		adapter->flags |= NETXEN_NIC_MSI_ENABLED;
		adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
		adapter->msix_entries[0].vector = pdev->irq;
		dev_info(&pdev->dev, "using msi interrupts\n");
		return 0;
	}

	dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 113 60.75% 5 55.56%
Manish Chopra 64 34.41% 2 22.22%
Amit Kumar Salecha 5 2.69% 1 11.11%
Alexander Gordeev 4 2.15% 1 11.11%
Total 186 100.00% 9 100.00%



static int netxen_setup_intr(struct netxen_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	int num_msix;

	if (adapter->rss_supported)
		num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
			    MSIX_ENTRIES_PER_ADAPTER : 2;
	else
		num_msix = 1;

	adapter->max_sds_rings = 1;
	adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);

	netxen_initialize_interrupt_registers(adapter);
	netxen_set_msix_bit(pdev, 0);

	if (netxen_function_zero(pdev)) {
		if (!netxen_setup_msi_interrupts(adapter, num_msix))
			netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
		else
			netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
	} else {
		if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
		    netxen_setup_msi_interrupts(adapter, num_msix)) {
			dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
			return -EIO;
		}
	}

	if (!NETXEN_IS_MSI_FAMILY(adapter)) {
		adapter->msix_entries[0].vector = pdev->irq;
		dev_info(&pdev->dev, "using legacy interrupts\n");
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Manish Chopra 165 91.16% 2 40.00%
Dhananjay Phadke 16 8.84% 3 60.00%
Total 181 100.00% 5 100.00%


static void

netxen_teardown_intr(struct netxen_adapter *adapter)
{
	if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
		pci_disable_msix(adapter->pdev);
	if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
		pci_disable_msi(adapter->pdev);
}

Contributors
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Dhananjay Phadke 41 100.00% 2 100.00%
Total 41 100.00% 2 100.00%


static void

netxen_cleanup_pci_map(struct netxen_adapter *adapter)
{
	if (adapter->ahw.db_base != NULL)
		iounmap(adapter->ahw.db_base);
	if (adapter->ahw.pci_base0 != NULL)
		iounmap(adapter->ahw.pci_base0);
	if (adapter->ahw.pci_base1 != NULL)
		iounmap(adapter->ahw.pci_base1);
	if (adapter->ahw.pci_base2 != NULL)
		iounmap(adapter->ahw.pci_base2);
}

Contributors
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Dhananjay Phadke 87 100.00% 2 100.00%
Total 87 100.00% 2 100.00%


static int

netxen_setup_pci_map(struct netxen_adapter *adapter)
{
	void __iomem *db_ptr = NULL;

	resource_size_t mem_base, db_base;
	unsigned long mem_len, db_len = 0;

	struct pci_dev *pdev = adapter->pdev;
	int pci_func = adapter->ahw.pci_func;
	struct netxen_hardware_context *ahw = &adapter->ahw;

	int err = 0;

	/*
         * Set the CRB window to invalid. If any register in window 0 is
         * accessed it should set the window to 0 and then reset it to 1.
         */
	adapter->ahw.crb_win = -1;
	adapter->ahw.ocm_win = -1;

	/* remap phys address */
	mem_base = pci_resource_start(pdev, 0);	/* 0 is for BAR 0 */
	mem_len = pci_resource_len(pdev, 0);

	/* 128 Meg of memory */
	if (mem_len == NETXEN_PCI_128MB_SIZE) {

		ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
		ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
				SECOND_PAGE_GROUP_SIZE);
		ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
				THIRD_PAGE_GROUP_SIZE);
		if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
						ahw->pci_base2 == NULL) {
			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
			err = -EIO;
			goto err_out;
		}

		ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;

	} else if (mem_len == NETXEN_PCI_32MB_SIZE) {

		ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
		ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
			SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
		if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
			err = -EIO;
			goto err_out;
		}

	} else if (mem_len == NETXEN_PCI_2MB_SIZE) {

		ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
		if (ahw->pci_base0 == NULL) {
			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
			return -EIO;
		}
		ahw->pci_len0 = mem_len;
	} else {
		return -EIO;
	}

	netxen_setup_hwops(adapter);

	dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));

	if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
		adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
			NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));

	} else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
			NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
	}

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		goto skip_doorbell;

	db_base = pci_resource_start(pdev, 4);	/* doorbell is on bar 4 */
	db_len = pci_resource_len(pdev, 4);

	if (db_len == 0) {
		printk(KERN_ERR "%s: doorbell is disabled\n",
				netxen_nic_driver_name);
		err = -EIO;
		goto err_out;
	}

	db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
	if (!db_ptr) {
		printk(KERN_ERR "%s: Failed to allocate doorbell map.",
				netxen_nic_driver_name);
		err = -EIO;
		goto err_out;
	}

skip_doorbell:
	adapter->ahw.db_base = db_ptr;
	adapter->ahw.db_len = db_len;
	return 0;

err_out:
	netxen_cleanup_pci_map(adapter);
	return err;
}

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Dhananjay Phadke 374 70.57% 9 60.00%
Amit Kumar Salecha 148 27.92% 3 20.00%
Amit S. Kale 8 1.51% 3 20.00%
Total 530 100.00% 15 100.00%


static void

netxen_check_options(struct netxen_adapter *adapter)
{
	u32 fw_major, fw_minor, fw_build, prev_fw_version;
	char brd_name[NETXEN_MAX_SHORT_NAME];
	char serial_num[32];
	int i, offset, val, err;
	__le32 *ptr32;
	struct pci_dev *pdev = adapter->pdev;

	adapter->driver_mismatch = 0;

	ptr32 = (__le32 *)&serial_num;
	offset = NX_FW_SERIAL_NUM_OFFSET;
	for (i = 0; i < 8; i++) {
		err = netxen_rom_fast_read(adapter, offset, &val);
		if (err) {
			dev_err(&pdev->dev, "error reading board info\n");
			adapter->driver_mismatch = 1;
			return;
		}
		ptr32[i] = cpu_to_le32(val);
		offset += sizeof(u32);
	}

	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
	prev_fw_version = adapter->fw_version;
	adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);

	/* Get FW Mini Coredump template and store it */
	 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		if (adapter->mdump.md_template == NULL ||
				adapter->fw_version > prev_fw_version) {
			kfree(adapter->mdump.md_template);
			adapter->mdump.md_template = NULL;
			err = netxen_setup_minidump(adapter);
			if (err)
				dev_err(&adapter->pdev->dev,
				"Failed to setup minidump rcode = %d\n", err);
		}
	}

	if (adapter->portnum == 0) {
		if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
						    brd_name))
			strcpy(serial_num, "Unknown");

		pr_info("%s: %s Board S/N %s  Chip rev 0x%x\n",
				module_name(THIS_MODULE),
				brd_name, serial_num, adapter->ahw.revision_id);
	}

	if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
		adapter->driver_mismatch = 1;
		dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
				fw_major, fw_minor, fw_build);
		return;
	}

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		i = NXRD32(adapter, NETXEN_SRE_MISC);
		adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
	}

	dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
		 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
		 adapter->ahw.cut_through ? "cut-through" : "legacy");

	if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
		adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);

	if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
	} else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
	}

	adapter->msix_supported = 0;
	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		adapter->msix_supported = !!use_msi_x;
		adapter->rss_supported = !!use_msi_x;
	} else {
		u32 flashed_ver = 0;
		netxen_rom_fast_read(adapter,
				NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
		flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);

		if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
			switch (adapter->ahw.board_type) {
			case NETXEN_BRDTYPE_P2_SB31_10G:
			case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
				adapter->msix_supported = !!use_msi_x;
				adapter->rss_supported = !!use_msi_x;
				break;
			default:
				break;
			}
		}
	}

	adapter->num_txd = MAX_CMD_DESCRIPTORS;

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
		adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
		adapter->max_rds_rings = 3;
	} else {
		adapter->num_lro_rxd = 0;
		adapter->max_rds_rings = 2;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 490 75.27% 4 26.67%
Manish Chopra 97 14.90% 3 20.00%
Amit Kumar Salecha 30 4.61% 1 6.67%
Amit S. Kale 22 3.38% 3 20.00%
Dan Carpenter 6 0.92% 1 6.67%
Mithlesh Thukral 4 0.61% 2 13.33%
Santosh Nayak 2 0.31% 1 6.67%
Total 651 100.00% 15 100.00%


static int

netxen_start_firmware(struct netxen_adapter *adapter)
{
	int val, err, first_boot;
	struct pci_dev *pdev = adapter->pdev;

	/* required for NX2031 dummy dma */
	err = nx_set_dma_mask(adapter);
	if (err)
		return err;

	err = netxen_can_start_firmware(adapter);

	if (err < 0)
		return err;

	if (!err)
		goto wait_init;

	first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));

	err = netxen_check_hw_init(adapter, first_boot);
	if (err) {
		dev_err(&pdev->dev, "error in init HW init sequence\n");
		return err;
	}

	netxen_request_firmware(adapter);

	err = netxen_need_fw_reset(adapter);
	if (err < 0)
		goto err_out;
	if (err == 0)
		goto pcie_strap_init;

	if (first_boot != 0x55555555) {
		NXWR32(adapter, CRB_CMDPEG_STATE, 0);
		netxen_pinit_from_rom(adapter);
		msleep(1);
	}

	NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
	NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
	NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netxen_set_port_mode(adapter);

	err = netxen_load_firmware(adapter);
	if (err)
		goto err_out;

	netxen_release_firmware(adapter);

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {

		/* Initialize multicast addr pool owners */
		val = 0x7654;
		if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
			val |= 0x0f000000;
		NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);

	}

	err = netxen_init_dummy_dma(adapter);
	if (err)
		goto err_out;

	/*
         * Tell the hardware our version number.
         */
	val = (_NETXEN_NIC_LINUX_MAJOR << 16)
		| ((_NETXEN_NIC_LINUX_MINOR << 8))
		| (_NETXEN_NIC_LINUX_SUBVERSION);
	NXWR32(adapter, CRB_DRIVER_VERSION, val);

pcie_strap_init:
	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netxen_pcie_strap_init(adapter);

wait_init:
	/* Handshake with the card before we register the devices. */
	err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
	if (err) {
		netxen_free_dummy_dma(adapter);
		goto err_out;
	}

	NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);

	nx_update_dma_mask(adapter);

	netxen_check_options(adapter);

	adapter->need_fw_reset = 0;

	/* fall through and release firmware */

err_out:
	netxen_release_firmware(adapter);
	return err;
}

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Person Tokens Prop Commits CommitProp
Dhananjay Phadke 340 87.18% 16 80.00%
Rajesh K Borundia 19 4.87% 1 5.00%
Manish Chopra 16 4.10% 1 5.00%
Amit Kumar Salecha 15 3.85% 2 10.00%
Total 390 100.00% 20 100.00%


static int

netxen_nic_request_irq(struct netxen_adapter *adapter)
{
	irq_handler_t handler;
	struct nx_host_sds_ring *sds_ring;
	int err, ring;

	unsigned long flags = 0;
	struct net_device *netdev = adapter->netdev;
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
		handler = netxen_msix_intr;
	else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
		handler = netxen_msi_intr;
	else {
		flags |= IRQF_SHARED;
		handler = netxen_intr;
	}
	adapter->irq = netdev->irq;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
		err = request_irq(sds_ring->irq, handler,
				  flags, sds_ring->name, sds_ring);
		if (err)
			return err;
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 163 99.39% 4 80.00%
Javier Martinez Canillas 1 0.61% 1 20.00%
Total 164 100.00% 5 100.00%


static void

netxen_nic_free_irq(struct netxen_adapter *adapter)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;

	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		free_irq(sds_ring->irq, sds_ring);
	}
}

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Dhananjay Phadke 65 100.00% 2 100.00%
Total 65 100.00% 2 100.00%


static void

netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
{
	adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
	adapter->coal.normal.data.rx_time_us =
		NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
	adapter->coal.normal.data.rx_packets =
		NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
	adapter->coal.normal.data.tx_time_us =
		NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
	adapter->coal.normal.data.tx_packets =
		NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
}

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Dhananjay Phadke 67 100.00% 2 100.00%
Total 67 100.00% 2 100.00%

/* with rtnl_lock */

static int

__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
{
	int err;

	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return -EIO;

	err = adapter->init_port(adapter, adapter->physical_port);
	if (err) {
		printk(KERN_ERR "%s: Failed to initialize port %d\n",
				netxen_nic_driver_name, adapter->portnum);
		return err;
	}
	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		adapter->macaddr_set(adapter, adapter->mac_addr);

	adapter->set_multi(netdev);
	adapter->set_mtu(adapter, netdev->mtu);

	adapter->ahw.linkup = 0;

	if (adapter->max_sds_rings > 1)
		netxen_config_rss(adapter, 1);

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netxen_config_intr_coalesce(adapter);

	if (netdev->features & NETIF_F_LRO)
		netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);

	netxen_napi_enable(adapter);

	if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
		netxen_linkevent_request(adapter, 1);
	else
		netxen_nic_set_link_parameters(adapter);

	set_bit(__NX_DEV_UP, &adapter->state);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 168 84.85% 12 60.00%
Narender Kumar 14 7.07% 2 10.00%
Amit S. Kale 7 3.54% 2 10.00%
Mithlesh Thukral 5 2.53% 2 10.00%
Sucheta Chakraborty 3 1.52% 1 5.00%
Amit Kumar Salecha 1 0.51% 1 5.00%
Total 198 100.00% 20 100.00%

/* Usage: During resume and firmware recovery module.*/


static inline int

netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
{
	int err = 0;

	rtnl_lock();
	if (netif_running(netdev))
		err = __netxen_nic_up(adapter, netdev);
	rtnl_unlock();

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%

/* with rtnl_lock */

static void

__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
{
	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return;

	if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
		return;

	smp_mb();
	netif_carrier_off(netdev);
	netif_tx_disable(netdev);

	if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
		netxen_linkevent_request(adapter, 0);

	if (adapter->stop_port)
		adapter->stop_port(adapter);

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netxen_p3_free_mac_list(adapter);

	adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);

	netxen_napi_disable(adapter);

	netxen_release_tx_buffers(adapter);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 80 69.57% 11 68.75%
Amit Kumar Salecha 18 15.65% 3 18.75%
Sony Chacko 15 13.04% 1 6.25%
Amit S. Kale 2 1.74% 1 6.25%
Total 115 100.00% 16 100.00%

/* Usage: During suspend and firmware recovery module */


static inline void

netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
{
	rtnl_lock();
	if (netif_running(netdev))
		__netxen_nic_down(adapter, netdev);
	rtnl_unlock();

}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 37 100.00% 1 100.00%
Total 37 100.00% 1 100.00%


static int

netxen_nic_attach(struct netxen_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	struct pci_dev *pdev = adapter->pdev;
	int err, ring;
	struct nx_host_rds_ring *rds_ring;
	struct nx_host_tx_ring *tx_ring;
	u32 capab2;

	if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
		return 0;

	err = netxen_init_firmware(adapter);
	if (err)
		return err;

	adapter->flags &= ~NETXEN_FW_MSS_CAP;
	if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
		capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
		if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
			adapter->flags |= NETXEN_FW_MSS_CAP;
	}

	err = netxen_napi_add(adapter, netdev);
	if (err)
		return err;

	err = netxen_alloc_sw_resources(adapter);
	if (err) {
		printk(KERN_ERR "%s: Error in setting sw resources\n",
				netdev->name);
		return err;
	}

	err = netxen_alloc_hw_resources(adapter);
	if (err) {
		printk(KERN_ERR "%s: Error in setting hw resources\n",
				netdev->name);
		goto err_out_free_sw;
	}

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
		tx_ring = adapter->tx_ring;
		tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
				crb_cmd_producer[adapter->portnum]);
		tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
				crb_cmd_consumer[adapter->portnum]);

		tx_ring->producer = 0;
		tx_ring->sw_consumer = 0;

		netxen_nic_update_cmd_producer(adapter, tx_ring);
		netxen_nic_update_cmd_consumer(adapter, tx_ring);
	}

	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
		rds_ring = &adapter->recv_ctx.rds_rings[ring];
		netxen_post_rx_buffers(adapter, ring, rds_ring);
	}

	err = netxen_nic_request_irq(adapter);
	if (err) {
		dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
				netdev->name);
		goto err_out_free_rxbuf;
	}

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netxen_nic_init_coalesce_defaults(adapter);

	netxen_create_sysfs_entries(adapter);

	adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
	return 0;

err_out_free_rxbuf:
	netxen_release_rx_buffers(adapter);
	netxen_free_hw_resources(adapter);
err_out_free_sw:
	netxen_free_sw_resources(adapter);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 267 71.20% 16 61.54%
Rajesh K Borundia 41 10.93% 1 3.85%
Mithlesh Thukral 22 5.87% 2 7.69%
Amit Kumar Salecha 21 5.60% 2 7.69%
Amit S. Kale 19 5.07% 4 15.38%
Narender Kumar 5 1.33% 1 3.85%
Total 375 100.00% 26 100.00%


static void

netxen_nic_detach(struct netxen_adapter *adapter)
{
	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return;

	netxen_remove_sysfs_entries(adapter);

	netxen_free_hw_resources(adapter);
	netxen_release_rx_buffers(adapter);
	netxen_nic_free_irq(adapter);
	netxen_napi_del(adapter);
	netxen_free_sw_resources(adapter);

	adapter->is_up = 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 32 57.14% 4 40.00%
Amit Kumar Salecha 9 16.07% 1 10.00%
Mithlesh Thukral 9 16.07% 3 30.00%
Narender Kumar 5 8.93% 1 10.00%
Amit S. Kale 1 1.79% 1 10.00%
Total 56 100.00% 10 100.00%


int

netxen_nic_reset_context(struct netxen_adapter *adapter)
{
	int err = 0;
	struct net_device *netdev = adapter->netdev;

	if (test_and_set_bit(__NX_RESETTING, &adapter->state))
		return -EBUSY;

	if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {

		netif_device_detach(netdev);

		if (netif_running(netdev))
			__netxen_nic_down(adapter, netdev);

		netxen_nic_detach(adapter);

		if (netif_running(netdev)) {
			err = netxen_nic_attach(adapter);
			if (!err)
				err = __netxen_nic_up(adapter, netdev);

			if (err)
				goto done;
		}

		netif_device_attach(netdev);
	}

done:
	clear_bit(__NX_RESETTING, &adapter->state);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 78 59.54% 2 66.67%
Dhananjay Phadke 53 40.46% 1 33.33%
Total 131 100.00% 3 100.00%


static int

netxen_setup_netdev(struct netxen_adapter *adapter,
		struct net_device *netdev)
{
	int err = 0;
	struct pci_dev *pdev = adapter->pdev;

	adapter->mc_enabled = 0;
	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		adapter->max_mc_count = 38;
	else
		adapter->max_mc_count = 16;

	netdev->netdev_ops	   = &netxen_netdev_ops;
	netdev->watchdog_timeo     = 5*HZ;

	netxen_nic_change_mtu(netdev, netdev->mtu);

	netdev->ethtool_ops = &netxen_nic_ethtool_ops;

	netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
	                      NETIF_F_RXCSUM;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;

	netdev->vlan_features |= netdev->hw_features;

	if (adapter->pci_using_dac) {
		netdev->features |= NETIF_F_HIGHDMA;
		netdev->vlan_features |= NETIF_F_HIGHDMA;
	}

	if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;

	if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
		netdev->hw_features |= NETIF_F_LRO;

	netdev->features |= netdev->hw_features;

	netdev->irq = adapter->msix_entries[0].vector;

	INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);

	if (netxen_read_mac_addr(adapter))
		dev_warn(&pdev->dev, "failed to read mac addr\n");

	netif_carrier_off(netdev);

	err = register_netdev(netdev);
	if (err) {
		dev_err(&pdev->dev, "failed to register net device\n");
		return err;
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 219 84.23% 4 33.33%
Michał Mirosław 17 6.54% 1 8.33%
Narender Kumar 13 5.00% 1 8.33%
Mithlesh Thukral 5 1.92% 2 16.67%
Wilfried Klaebe 3 1.15% 1 8.33%
Amit Kumar Salecha 1 0.38% 1 8.33%
Rajesh K Borundia 1 0.38% 1 8.33%
Patrick McHardy 1 0.38% 1 8.33%
Total 260 100.00% 12 100.00%


#define NETXEN_ULA_ADAPTER_KEY		(0xdaddad01)

#define NETXEN_NON_ULA_ADAPTER_KEY	(0xdaddad00)



static void netxen_read_ula_info(struct netxen_adapter *adapter)
{
	u32 temp;

	/* Print ULA info only once for an adapter */
	if (adapter->portnum != 0)
		return;

	temp = NXRD32(adapter, NETXEN_ULA_KEY);
	switch (temp) {
	case NETXEN_ULA_ADAPTER_KEY:
		dev_info(&adapter->pdev->dev, "ULA adapter");
		break;
	case NETXEN_NON_ULA_ADAPTER_KEY:
		dev_info(&adapter->pdev->dev, "non ULA adapter");
		break;
	default:
		break;
	}

	return;
}

Contributors
Person Tokens Prop Commits CommitProp
Shahed Shaikh 74 100.00% 1 100.00%
Total 74 100.00% 1 100.00%

#ifdef CONFIG_PCIEAER


static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	struct pci_dev *root = pdev->bus->self;
	u32 aer_pos;

	/* root bus? */
	if (!root)
		return;

	if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
		adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
		return;

	if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
		return;

	aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
	if (!aer_pos)
		return;

	pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
}
Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 86 89.58% 1 33.33%
Nikolay Aleksandrov 7 7.29% 1 33.33%
Yijing Wang 3 3.12% 1 33.33%
Total 96 100.00% 3 100.00%

#endif


static int

netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct net_device *netdev = NULL;
	struct netxen_adapter *adapter = NULL;
	int i = 0, err;
	int pci_func_id = PCI_FUNC(pdev->devfn);
	uint8_t revision_id;
	u32 val;

	if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
		pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
			module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
		return -ENODEV;
	}

	if ((err = pci_enable_device(pdev)))
		return err;

	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
		err = -ENODEV;
		goto err_out_disable_pdev;
	}

	if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
		goto err_out_disable_pdev;

	if (NX_IS_REVISION_P3(pdev->revision))
		pci_enable_pcie_error_reporting(pdev);

	pci_set_master(pdev);

	netdev = alloc_etherdev(sizeof(struct netxen_adapter));
	if(!netdev) {
		err = -ENOMEM;
		goto err_out_free_res;
	}

	SET_NETDEV_DEV(netdev, &pdev->dev);

	adapter = netdev_priv(netdev);
	adapter->netdev  = netdev;
	adapter->pdev    = pdev;
	adapter->ahw.pci_func  = pci_func_id;

	revision_id = pdev->revision;
	adapter->ahw.revision_id = revision_id;

	rwlock_init(&adapter->ahw.crb_lock);
	spin_lock_init(&adapter->ahw.mem_lock);

	spin_lock_init(&adapter->tx_clean_lock);
	INIT_LIST_HEAD(&adapter->mac_list);
	INIT_LIST_HEAD(&adapter->ip_list);

	err = netxen_setup_pci_map(adapter);
	if (err)
		goto err_out_free_netdev;

	/* This will be reset for mezz cards  */
	adapter->portnum = pci_func_id;

	err = netxen_nic_get_board_info(adapter);
	if (err) {
		dev_err(&pdev->dev, "Error getting board config info.\n");
		goto err_out_iounmap;
	}

#ifdef CONFIG_PCIEAER
	netxen_mask_aer_correctable(adapter);
#endif

	/* Mezz cards have PCI function 0,2,3 enabled */
	switch (adapter->ahw.board_type) {
	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
		if (pci_func_id >= 2)
			adapter->portnum = pci_func_id - 2;
		break;
	default:
		break;
	}

	err = netxen_check_flash_fw_compatibility(adapter);
	if (err)
		goto err_out_iounmap;

	if (adapter->portnum == 0) {
		val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
		if (val != 0xffffffff && val != 0) {
			NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
			adapter->need_fw_reset = 1;
		}
	}

	err = netxen_start_firmware(adapter);
	if (err)
		goto err_out_decr_ref;

	/*
         * See if the firmware gave us a virtual-physical port mapping.
         */
	adapter->physical_port = adapter->portnum;
	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
		i = NXRD32(adapter, CRB_V2P(adapter->portnum));
		if (i != 0x55555555)
			adapter->physical_port = i;
	}

	/* MTU range: 0 - 8000 (P2) or 9600 (P3) */
	netdev->min_mtu = 0;
	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		netdev->max_mtu = P3_MAX_MTU;
	else
		netdev->max_mtu = P2_MAX_MTU;

	netxen_nic_clear_stats(adapter);

	err = netxen_setup_intr(adapter);

	if (err) {
		dev_err(&adapter->pdev->dev,
			"Failed to setup interrupts, error = %d\n", err);
		goto err_out_disable_msi;
	}

	netxen_read_ula_info(adapter);

	err = netxen_setup_netdev(adapter, netdev);
	if (err)
		goto err_out_disable_msi;

	pci_set_drvdata(pdev, adapter);

	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);

	switch (adapter->ahw.port_type) {
	case NETXEN_NIC_GBE:
		dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
				adapter->netdev->name);
		break;
	case NETXEN_NIC_XGBE:
		dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
				adapter->netdev->name);
		break;
	}

	netxen_create_diag_entries(adapter);

	return 0;

err_out_disable_msi:
	netxen_teardown_intr(adapter);

	netxen_free_dummy_dma(adapter);

err_out_decr_ref:
	nx_decr_dev_ref_cnt(adapter);

err_out_iounmap:
	netxen_cleanup_pci_map(adapter);

err_out_free_netdev:
	free_netdev(netdev);

err_out_free_res:
	pci_release_regions(pdev);

err_out_disable_pdev:
	pci_disable_device(pdev);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 518 72.96% 19 51.35%
Rajesh K Borundia 56 7.89% 3 8.11%
Amit Kumar Salecha 43 6.06% 5 13.51%
Jarod Wilson 31 4.37% 1 2.70%
Manish Chopra 25 3.52% 1 2.70%
Amit S. Kale 24 3.38% 1 2.70%
Shahed Shaikh 5 0.70% 1 2.70%
Mithlesh Thukral 3 0.42% 2 5.41%
Joe Perches 2 0.28% 1 2.70%
Eric W. Biedermann 1 0.14% 1 2.70%
Nikolay Aleksandrov 1 0.14% 1 2.70%
Wang Chen 1 0.14% 1 2.70%
Total 710 100.00% 37 100.00%


static

void netxen_cleanup_minidump(struct netxen_adapter *adapter)
{
	kfree(adapter->mdump.md_template);
	adapter->mdump.md_template = NULL;

	if (adapter->mdump.md_capture_buff) {
		vfree(adapter->mdump.md_capture_buff);
		adapter->mdump.md_capture_buff = NULL;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Manish Chopra 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%



static void netxen_nic_remove(struct pci_dev *pdev)
{
	struct netxen_adapter *adapter;
	struct net_device *netdev;

	adapter = pci_get_drvdata(pdev);
	if (adapter == NULL)
		return;

	netdev = adapter->netdev;

	netxen_cancel_fw_work(adapter);

	unregister_netdev(netdev);

	cancel_work_sync(&adapter->tx_timeout_task);

	netxen_free_ip_list(adapter, false);
	netxen_nic_detach(adapter);

	nx_decr_dev_ref_cnt(adapter);

	if (adapter->portnum == 0)
		netxen_free_dummy_dma(adapter);

	clear_bit(__NX_RESETTING, &adapter->state);

	netxen_teardown_intr(adapter);
	netxen_set_interrupt_mode(adapter, 0);
	netxen_remove_diag_entries(adapter);

	netxen_cleanup_pci_map(adapter);

	netxen_release_firmware(adapter);

	if (NX_IS_REVISION_P3(pdev->revision)) {
		netxen_cleanup_minidump(adapter);
		pci_disable_pcie_error_reporting(pdev);
	}

	pci_release_regions(pdev);
	pci_disable_device(pdev);

	free_netdev(netdev);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 95 58.64% 9 47.37%
Amit Kumar Salecha 25 15.43% 2 10.53%
Manish Chopra 14 8.64% 2 10.53%
Amit S. Kale 12 7.41% 2 10.53%
Mithlesh Thukral 9 5.56% 2 10.53%
Rajesh K Borundia 4 2.47% 1 5.26%
Nikolay Aleksandrov 3 1.85% 1 5.26%
Total 162 100.00% 19 100.00%



static void netxen_nic_detach_func(struct netxen_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;

	netif_device_detach(netdev);

	netxen_cancel_fw_work(adapter);

	if (netif_running(netdev))
		netxen_nic_down(adapter, netdev);

	cancel_work_sync(&adapter->tx_timeout_task);

	netxen_nic_detach(adapter);

	if (adapter->portnum == 0)
		netxen_free_dummy_dma(adapter);

	nx_decr_dev_ref_cnt(adapter);

	clear_bit(__NX_RESETTING, &adapter->state);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 60 70.59% 2 40.00%
Amit Kumar Salecha 25 29.41% 3 60.00%
Total 85 100.00% 5 100.00%



static int netxen_nic_attach_func(struct pci_dev *pdev)
{
	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
	struct net_device *netdev = adapter->netdev;
	int err;

	err = pci_enable_device(pdev);
	if (err)
		return err;

	pci_set_power_state(pdev, PCI_D0);
	pci_set_master(pdev);
	pci_restore_state(pdev);

	adapter->ahw.crb_win = -1;
	adapter->ahw.ocm_win = -1;

	err = netxen_start_firmware(adapter);
	if (err) {
		dev_err(&pdev->dev, "failed to start firmware\n");
		return err;
	}

	if (netif_running(netdev)) {
		err = netxen_nic_attach(adapter);
		if (err)
			goto err_out;

		err = netxen_nic_up(adapter, netdev);
		if (err)
			goto err_out_detach;

		netxen_restore_indev_addr(netdev, NETDEV_UP);
	}

	netif_device_attach(netdev);
	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
	return 0;

err_out_detach:
	netxen_nic_detach(adapter);
err_out:
	nx_decr_dev_ref_cnt(adapter);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 159 84.57% 5 55.56%
Amit Kumar Salecha 28 14.89% 3 33.33%
Rajesh K Borundia 1 0.53% 1 11.11%
Total 188 100.00% 9 100.00%



static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
						pci_channel_state_t state)
{
	struct netxen_adapter *adapter = pci_get_drvdata(pdev);

	if (state == pci_channel_io_perm_failure)
		return PCI_ERS_RESULT_DISCONNECT;

	if (nx_dev_request_aer(adapter))
		return PCI_ERS_RESULT_RECOVERED;

	netxen_nic_detach_func(adapter);

	pci_disable_device(pdev);

	return PCI_ERS_RESULT_NEED_RESET;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 32 57.14% 3 60.00%
Amit Kumar Salecha 23 41.07% 1 20.00%
Amit S. Kale 1 1.79% 1 20.00%
Total 56 100.00% 5 100.00%



static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
{
	int err = 0;

	err = netxen_nic_attach_func(pdev);

	return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 30 100.00% 1 100.00%
Total 30 100.00% 1 100.00%



static void netxen_io_resume(struct pci_dev *pdev)
{
	pci_cleanup_aer_uncorrect_error_status(pdev);
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 16 100.00% 1 100.00%
Total 16 100.00% 1 100.00%



static void netxen_nic_shutdown(struct pci_dev *pdev)
{
	struct netxen_adapter *adapter = pci_get_drvdata(pdev);

	netxen_nic_detach_func(adapter);

	if (pci_save_state(pdev))
		return;

	if (netxen_nic_wol_supported(adapter)) {
		pci_enable_wake(pdev, PCI_D3cold, 1);
		pci_enable_wake(pdev, PCI_D3hot, 1);
	}

	pci_disable_device(pdev);
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 66 100.00% 1 100.00%
Total 66 100.00% 1 100.00%

#ifdef CONFIG_PM

static int

netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
{
	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
	int retval;

	netxen_nic_detach_func(adapter);

	retval = pci_save_state(pdev);
	if (retval)
		return retval;

	if (netxen_nic_wol_supported(adapter)) {
		pci_enable_wake(pdev, PCI_D3cold, 1);
		pci_enable_wake(pdev, PCI_D3hot, 1);
	}

	pci_disable_device(pdev);
	pci_set_power_state(pdev, pci_choose_state(pdev, state));

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 93 100.00% 1 100.00%
Total 93 100.00% 1 100.00%


static int

netxen_nic_resume(struct pci_dev *pdev)
{
	return netxen_nic_attach_func(pdev);
}
Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 17 100.00% 1 100.00%
Total 17 100.00% 1 100.00%

#endif



static int netxen_nic_open(struct net_device *netdev)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);
	int err = 0;

	if (adapter->driver_mismatch)
		return -EIO;

	err = netxen_nic_attach(adapter);
	if (err)
		return err;

	err = __netxen_nic_up(adapter, netdev);
	if (err)
		goto err_out;

	netif_start_queue(netdev);

	return 0;

err_out:
	netxen_nic_detach(adapter);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 82 97.62% 1 33.33%
Dhananjay Phadke 1 1.19% 1 33.33%
Amit S. Kale 1 1.19% 1 33.33%
Total 84 100.00% 3 100.00%

/*
 * netxen_nic_close - Disables a network interface entry point
 */


static int netxen_nic_close(struct net_device *netdev)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);

	__netxen_nic_down(adapter, netdev);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit S. Kale 26 83.87% 1 25.00%
Dhananjay Phadke 2 6.45% 1 25.00%
Mithlesh Thukral 2 6.45% 1 25.00%
Amit Kumar Salecha 1 3.23% 1 25.00%
Total 31 100.00% 4 100.00%


static void

netxen_tso_check(struct net_device *netdev,
		struct nx_host_tx_ring *tx_ring,
		struct cmd_desc_type0 *first_desc,
		struct sk_buff *skb)
{
	u8 opcode = TX_ETHER_PKT;
	__be16 protocol = skb->protocol;
	u16 flags = 0, vid = 0;
	u32 producer;
	int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
	struct cmd_desc_type0 *hwdesc;
	struct vlan_ethhdr *vh;

	if (protocol == cpu_to_be16(ETH_P_8021Q)) {

		vh = (struct vlan_ethhdr *)skb->data;
		protocol = vh->h_vlan_encapsulated_proto;
		flags = FLAGS_VLAN_TAGGED;

	} else if (skb_vlan_tag_present(skb)) {
		flags = FLAGS_VLAN_OOB;
		vid = skb_vlan_tag_get(skb);
		netxen_set_tx_vlan_tci(first_desc, vid);
		vlan_oob = 1;
	}

	if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
			skb_shinfo(skb)->gso_size > 0) {

		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);

		first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
		first_desc->total_hdr_length = hdr_len;
		if (vlan_oob) {
			first_desc->total_hdr_length += VLAN_HLEN;
			first_desc->tcp_hdr_offset = VLAN_HLEN;
			first_desc->ip_hdr_offset = VLAN_HLEN;
			/* Only in case of TSO on vlan device */
			flags |= FLAGS_VLAN_TAGGED;
		}

		opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
				TX_TCP_LSO6 : TX_TCP_LSO;
		tso = 1;

	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
		u8 l4proto;

		if (protocol == cpu_to_be16(ETH_P_IP)) {
			l4proto = ip_hdr(skb)->protocol;

			if (l4proto == IPPROTO_TCP)
				opcode = TX_TCP_PKT;
			else if(l4proto == IPPROTO_UDP)
				opcode = TX_UDP_PKT;
		} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
			l4proto = ipv6_hdr(skb)->nexthdr;

			if (l4proto == IPPROTO_TCP)
				opcode = TX_TCPV6_PKT;
			else if(l4proto == IPPROTO_UDP)
				opcode = TX_UDPV6_PKT;
		}
	}

	first_desc->tcp_hdr_offset += skb_transport_offset(skb);
	first_desc->ip_hdr_offset += skb_network_offset(skb);
	netxen_set_tx_flags_opcode(first_desc, flags, opcode);

	if (!tso)
		return;

	/* For LSO, we need to copy the MAC/IP/TCP headers into
         * the descriptor ring
         */
	producer = tx_ring->producer;
	copied = 0;
	offset = 2;

	if (vlan_oob) {
		/* Create a TSO vlan header template for firmware */

		hwdesc = &tx_ring->desc_head[producer];
		tx_ring->cmd_buf_arr[producer].skb = NULL;

		copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
				hdr_len + VLAN_HLEN);

		vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
		skb_copy_from_linear_data(skb, vh, 12);
		vh->h_vlan_proto = htons(ETH_P_8021Q);
		vh->h_vlan_TCI = htons(vid);
		skb_copy_from_linear_data_offset(skb, 12,
				(char *)vh + 16, copy_len - 16);

		copied = copy_len - VLAN_HLEN;
		offset = 0;

		producer = get_next_index(producer, tx_ring->num_desc);
	}

	while (copied < hdr_len) {

		copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
				(hdr_len - copied));

		hwdesc = &tx_ring->desc_head[producer];
		tx_ring->cmd_buf_arr[producer].skb = NULL;

		skb_copy_from_linear_data_offset(skb, copied,
				 (char *)hwdesc + offset, copy_len);

		copied += copy_len;
		offset = 0;

		producer = get_next_index(producer, tx_ring->num_desc);
	}

	tx_ring->producer = producer;
	barrier();
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 615 99.03% 6 75.00%
Harvey Harrison 4 0.64% 1 12.50%
Jiri Pirko 2 0.32% 1 12.50%
Total 621 100.00% 8 100.00%


static int

netxen_map_tx_skb(struct pci_dev *pdev,
		struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
{
	struct netxen_skb_frag *nf;
	struct skb_frag_struct *frag;
	int i, nr_frags;
	dma_addr_t map;

	nr_frags = skb_shinfo(skb)->nr_frags;
	nf = &pbuf->frag_array[0];

	map = pci_map_single(pdev, skb->data,
			skb_headlen(skb), PCI_DMA_TODEVICE);
	if (pci_dma_mapping_error(pdev, map))
		goto out_err;

	nf->dma = map;
	nf->length = skb_headlen(skb);

	for (i = 0; i < nr_frags; i++) {
		frag = &skb_shinfo(skb)->frags[i];
		nf = &pbuf->frag_array[i+1];

		map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
				       DMA_TO_DEVICE);
		if (dma_mapping_error(&pdev->dev, map))
			goto unwind;

		nf->dma = map;
		nf->length = skb_frag_size(frag);
	}

	return 0;

unwind:
	while (--i >= 0) {
		nf = &pbuf->frag_array[i+1];
		pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
		nf->dma = 0ULL;
	}

	nf = &pbuf->frag_array[0];
	pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
	nf->dma = 0ULL;

out_err:
	return -ENOMEM;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 251 89.96% 3 42.86%
Eric Dumazet 18 6.45% 2 28.57%
Ian Campbell 10 3.58% 2 28.57%
Total 279 100.00% 7 100.00%


static inline void

netxen_clear_cmddesc(u64 *desc)
{
	desc[0] = 0ULL;
	desc[2] = 0ULL;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 25 100.00% 2 100.00%
Total 25 100.00% 2 100.00%


static netdev_tx_t

netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
	struct netxen_cmd_buffer *pbuf;
	struct netxen_skb_frag *buffrag;
	struct cmd_desc_type0 *hwdesc, *first_desc;
	struct pci_dev *pdev;
	int i, k;
	int delta = 0;
	struct skb_frag_struct *frag;

	u32 producer;
	int frag_count, no_of_desc;
	u32 num_txd = tx_ring->num_desc;

	frag_count = skb_shinfo(skb)->nr_frags + 1;

	/* 14 frags supported for normal packet and
         * 32 frags supported for TSO packet
         */
	if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {

		for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
			frag = &skb_shinfo(skb)->frags[i];
			delta += skb_frag_size(frag);
		}

		if (!__pskb_pull_tail(skb, delta))
			goto drop_packet;

		frag_count = 1 + skb_shinfo(skb)->nr_frags;
	}
	/* 4 fragments per cmd des */
	no_of_desc = (frag_count + 3) >> 2;

	if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
		netif_stop_queue(netdev);
		smp_mb();
		if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
			netif_start_queue(netdev);
		else
			return NETDEV_TX_BUSY;
	}

	producer = tx_ring->producer;
	pbuf = &tx_ring->cmd_buf_arr[producer];

	pdev = adapter->pdev;

	if (netxen_map_tx_skb(pdev, skb, pbuf))
		goto drop_packet;

	pbuf->skb = skb;
	pbuf->frag_count = frag_count;

	first_desc = hwdesc = &tx_ring->desc_head[producer];
	netxen_clear_cmddesc((u64 *)hwdesc);

	netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
	netxen_set_tx_port(first_desc, adapter->portnum);

	for (i = 0; i < frag_count; i++) {

		k = i % 4;

		if ((k == 0) && (i > 0)) {
			/* move to next desc.*/
			producer = get_next_index(producer, num_txd);
			hwdesc = &tx_ring->desc_head[producer];
			netxen_clear_cmddesc((u64 *)hwdesc);
			tx_ring->cmd_buf_arr[producer].skb = NULL;
		}

		buffrag = &pbuf->frag_array[i];

		hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
		switch (k) {
		case 0:
			hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
			break;
		case 1:
			hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
			break;
		case 2:
			hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
			break;
		case 3:
			hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
			break;
		}
	}

	tx_ring->producer = get_next_index(producer, num_txd);

	netxen_tso_check(netdev, tx_ring, first_desc, skb);

	adapter->stats.txbytes += skb->len;
	adapter->stats.xmitcalled++;

	netxen_nic_update_cmd_producer(adapter, tx_ring);

	return NETDEV_TX_OK;

drop_packet:
	adapter->stats.txdropped++;
	dev_kfree_skb_any(skb);
	return NETDEV_TX_OK;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit S. Kale 212 38.55% 2 9.52%
Dhananjay Phadke 202 36.73% 10 47.62%
Amit Kumar Salecha 85 15.45% 1 4.76%
Rajesh K Borundia 20 3.64% 1 4.76%
Mithlesh Thukral 17 3.09% 2 9.52%
Eric Dumazet 10 1.82% 2 9.52%
Arnaldo Carvalho de Melo 2 0.36% 1 4.76%
Stephen Hemminger 1 0.18% 1 4.76%
Roel Kluin 1 0.18% 1 4.76%
Total 550 100.00% 21 100.00%



static int netxen_nic_check_temp(struct netxen_adapter *adapter)
{
	struct net_device *netdev = adapter->netdev;
	uint32_t temp, temp_state, temp_val;
	int rv = 0;

	temp = NXRD32(adapter, CRB_TEMP_STATE);

	temp_state = nx_get_temp_state(temp);
	temp_val = nx_get_temp_val(temp);

	if (temp_state == NX_TEMP_PANIC) {
		printk(KERN_ALERT
		       "%s: Device temperature %d degrees C exceeds"
		       " maximum allowed. Hardware has been shut down.\n",
		       netdev->name, temp_val);
		rv = 1;
	} else if (temp_state == NX_TEMP_WARN) {
		if (adapter->temp == NX_TEMP_NORMAL) {
			printk(KERN_ALERT
			       "%s: Device temperature %d degrees C "
			       "exceeds operating range."
			       " Immediate action needed.\n",
			       netdev->name, temp_val);
		}
	} else {
		if (adapter->temp == NX_TEMP_WARN) {
			printk(KERN_INFO
			       "%s: Device temperature is now %d degrees C"
			       " in normal range.\n", netdev->name,
			       temp_val);
		}
	}
	adapter->temp = temp_state;
	return rv;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 148 100.00% 3 100.00%
Total 148 100.00% 3 100.00%



void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
{
	struct net_device *netdev = adapter->netdev;

	if (adapter->ahw.linkup && !linkup) {
		printk(KERN_INFO "%s: %s NIC Link is down\n",
		       netxen_nic_driver_name, netdev->name);
		adapter->ahw.linkup = 0;
		if (netif_running(netdev)) {
			netif_carrier_off(netdev);
			netif_stop_queue(netdev);
		}
		adapter->link_changed = !adapter->has_link_events;
	} else if (!adapter->ahw.linkup && linkup) {
		printk(KERN_INFO "%s: %s NIC Link is up\n",
		       netxen_nic_driver_name, netdev->name);
		adapter->ahw.linkup = 1;
		if (netif_running(netdev)) {
			netif_carrier_on(netdev);
			netif_wake_queue(netdev);
		}
		adapter->link_changed = !adapter->has_link_events;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 137 94.48% 2 66.67%
Amit Kumar Salecha 8 5.52% 1 33.33%
Total 145 100.00% 3 100.00%



static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
{
	u32 val, port, linkup;

	port = adapter->physical_port;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		val = NXRD32(adapter, CRB_XG_STATE_P3);
		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
		linkup = (val == XG_LINK_UP_P3);
	} else {
		val = NXRD32(adapter, CRB_XG_STATE);
		val = (val >> port*8) & 0xff;
		linkup = (val == XG_LINK_UP);
	}

	netxen_advert_link_change(adapter, linkup);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 106 100.00% 5 100.00%
Total 106 100.00% 5 100.00%



static void netxen_tx_timeout(struct net_device *netdev)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);

	if (test_bit(__NX_RESETTING, &adapter->state))
		return;

	dev_err(&netdev->dev, "transmit timeout, resetting.\n");
	schedule_work(&adapter->tx_timeout_task);
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 23 44.23% 1 33.33%
Dhananjay Phadke 15 28.85% 1 33.33%
Amit S. Kale 14 26.92% 1 33.33%
Total 52 100.00% 3 100.00%



static void netxen_tx_timeout_task(struct work_struct *work)
{
	struct netxen_adapter *adapter =
		container_of(work, struct netxen_adapter, tx_timeout_task);

	if (!netif_running(adapter->netdev))
		return;

	if (test_and_set_bit(__NX_RESETTING, &adapter->state))
		return;

	if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
		goto request_reset;

	rtnl_lock();
	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
		/* try to scrub interrupt */
		netxen_napi_disable(adapter);

		netxen_napi_enable(adapter);

		netif_wake_queue(adapter->netdev);

		clear_bit(__NX_RESETTING, &adapter->state);
	} else {
		clear_bit(__NX_RESETTING, &adapter->state);
		if (netxen_nic_reset_context(adapter)) {
			rtnl_unlock();
			goto request_reset;
		}
	}
	netif_trans_update(adapter->netdev);
	rtnl_unlock();
	return;

request_reset:
	adapter->need_fw_reset = 1;
	clear_bit(__NX_RESETTING, &adapter->state);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 86 52.76% 5 55.56%
Amit Kumar Salecha 74 45.40% 3 33.33%
Florian Westphal 3 1.84% 1 11.11%
Total 163 100.00% 9 100.00%



static void netxen_nic_get_stats(struct net_device *netdev,
				 struct rtnl_link_stats64 *stats)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);

	stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
	stats->tx_packets = adapter->stats.xmitfinished;
	stats->rx_bytes = adapter->stats.rxbytes;
	stats->tx_bytes = adapter->stats.txbytes;
	stats->rx_dropped = adapter->stats.rxdropped;
	stats->tx_dropped = adapter->stats.txdropped;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 61 66.30% 2 25.00%
Amit S. Kale 15 16.30% 1 12.50%
Narender Kumar 7 7.61% 1 12.50%
Stephen Hemminger 7 7.61% 3 37.50%
Mithlesh Thukral 2 2.17% 1 12.50%
Total 92 100.00% 8 100.00%



static irqreturn_t netxen_intr(int irq, void *data)
{
	struct nx_host_sds_ring *sds_ring = data;
	struct netxen_adapter *adapter = sds_ring->adapter;
	u32 status = 0;

	status = readl(adapter->isr_int_vec);

	if (!(status & adapter->int_vec_bit))
		return IRQ_NONE;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		/* check interrupt state machine, to be sure */
		status = readl(adapter->crb_int_state_reg);
		if (!ISR_LEGACY_INT_TRIGGERED(status))
			return IRQ_NONE;

	} else {
		unsigned long our_int = 0;

		our_int = readl(adapter->crb_int_state_reg);

		/* not our interrupt */
		if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
			return IRQ_NONE;

		/* claim interrupt */
		writel((our_int & 0xffffffff), adapter->crb_int_state_reg);

		/* clear interrupt */
		netxen_nic_disable_int(sds_ring);
	}

	writel(0xffffffff, adapter->tgt_status_reg);
	/* read twice to ensure write is flushed */
	readl(adapter->isr_int_vec);
	readl(adapter->isr_int_vec);

	napi_schedule(&sds_ring->napi);

	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 140 75.68% 7 63.64%
Amit Kumar Salecha 26 14.05% 1 9.09%
Amit S. Kale 18 9.73% 2 18.18%
Jeff Garzik 1 0.54% 1 9.09%
Total 185 100.00% 11 100.00%



static irqreturn_t netxen_msi_intr(int irq, void *data)
{
	struct nx_host_sds_ring *sds_ring = data;
	struct netxen_adapter *adapter = sds_ring->adapter;

	/* clear interrupt */
	writel(0xffffffff, adapter->tgt_status_reg);

	napi_schedule(&sds_ring->napi);
	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 40 80.00% 4 66.67%
Amit S. Kale 7 14.00% 1 16.67%
Amit Kumar Salecha 3 6.00% 1 16.67%
Total 50 100.00% 6 100.00%



static irqreturn_t netxen_msix_intr(int irq, void *data)
{
	struct nx_host_sds_ring *sds_ring = data;

	napi_schedule(&sds_ring->napi);
	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 31 100.00% 2 100.00%
Total 31 100.00% 2 100.00%



static int netxen_nic_poll(struct napi_struct *napi, int budget)
{
	struct nx_host_sds_ring *sds_ring =
		container_of(napi, struct nx_host_sds_ring, napi);

	struct netxen_adapter *adapter = sds_ring->adapter;

	int tx_complete;
	int work_done;

	tx_complete = netxen_process_cmd_ring(adapter);

	work_done = netxen_process_rcv_ring(sds_ring, budget);

	if (!tx_complete)
		work_done = budget;

	if (work_done < budget) {
		napi_complete_done(&sds_ring->napi, work_done);
		if (test_bit(__NX_DEV_UP, &adapter->state))
			netxen_nic_enable_int(sds_ring);
	}

	return work_done;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit S. Kale 48 44.86% 2 22.22%
Dhananjay Phadke 30 28.04% 3 33.33%
Stephen Hemminger 12 11.21% 1 11.11%
Eric Dumazet 12 11.21% 2 22.22%
Amit Kumar Salecha 5 4.67% 1 11.11%
Total 107 100.00% 9 100.00%

#ifdef CONFIG_NET_POLL_CONTROLLER


static void netxen_nic_poll_controller(struct net_device *netdev)
{
	int ring;
	struct nx_host_sds_ring *sds_ring;
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;

	disable_irq(adapter->irq);
	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &recv_ctx->sds_rings[ring];
		netxen_intr(adapter->irq, sds_ring);
	}
	enable_irq(adapter->irq);
}
Contributors
Person Tokens Prop Commits CommitProp
Yinglin Luan 46 51.69% 1 33.33%
Amit S. Kale 41 46.07% 1 33.33%
Mithlesh Thukral 2 2.25% 1 33.33%
Total 89 100.00% 3 100.00%

#endif


static int

nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
{
	int count;
	if (netxen_api_lock(adapter))
		return -EIO;

	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);

	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);

	netxen_api_unlock(adapter);
	return count;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 51 98.08% 1 50.00%
Narender Kumar 1 1.92% 1 50.00%
Total 52 100.00% 2 100.00%


static int

nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
{
	int count, state;
	if (netxen_api_lock(adapter))
		return -EIO;

	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
	WARN_ON(count == 0);

	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
	state = NXRD32(adapter, NX_CRB_DEV_STATE);

	if (count == 0 && state != NX_DEV_FAILED)
		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);

	netxen_api_unlock(adapter);
	return count;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 74 83.15% 1 50.00%
Manish Chopra 15 16.85% 1 50.00%
Total 89 100.00% 2 100.00%


static int

nx_dev_request_aer(struct netxen_adapter *adapter)
{
	u32 state;
	int ret = -EINVAL;

	if (netxen_api_lock(adapter))
		return ret;

	state = NXRD32(adapter, NX_CRB_DEV_STATE);

	if (state == NX_DEV_NEED_AER)
		ret = 0;
	else if (state == NX_DEV_READY) {
		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
		ret = 0;
	}

	netxen_api_unlock(adapter);
	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 78 98.73% 1 50.00%
Dhananjay Phadke 1 1.27% 1 50.00%
Total 79 100.00% 2 100.00%


int

nx_dev_request_reset(struct netxen_adapter *adapter)
{
	u32 state;
	int ret = -EINVAL;

	if (netxen_api_lock(adapter))
		return ret;

	state = NXRD32(adapter, NX_CRB_DEV_STATE);

	if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
		ret = 0;
	else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
		adapter->flags |= NETXEN_FW_RESET_OWNER;
		ret = 0;
	}

	netxen_api_unlock(adapter);

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 82 89.13% 2 66.67%
Manish Chopra 10 10.87% 1 33.33%
Total 92 100.00% 3 100.00%


static int

netxen_can_start_firmware(struct netxen_adapter *adapter)
{
	int count;
	int can_start = 0;

	if (netxen_api_lock(adapter)) {
		nx_incr_dev_ref_cnt(adapter);
		return -1;
	}

	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);

	if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
		count = 0;

	if (count == 0) {
		can_start = 1;
		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
	}

	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);

	netxen_api_unlock(adapter);

	return can_start;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 93 90.29% 1 33.33%
Manish Chopra 9 8.74% 1 33.33%
Amit Kumar Salecha 1 0.97% 1 33.33%
Total 103 100.00% 3 100.00%


static void

netxen_schedule_work(struct netxen_adapter *adapter,
		work_func_t func, int delay)
{
	INIT_DELAYED_WORK(&adapter->fw_work, func);
	schedule_delayed_work(&adapter->fw_work, delay);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 37 100.00% 1 100.00%
Total 37 100.00% 1 100.00%


static void

netxen_cancel_fw_work(struct netxen_adapter *adapter)
{
	while (test_and_set_bit(__NX_RESETTING, &adapter->state))
		msleep(10);

	cancel_delayed_work_sync(&adapter->fw_work);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 36 100.00% 1 100.00%
Total 36 100.00% 1 100.00%


static void

netxen_attach_work(struct work_struct *work)
{
	struct netxen_adapter *adapter = container_of(work,
				struct netxen_adapter, fw_work.work);
	struct net_device *netdev = adapter->netdev;
	int err = 0;

	if (netif_running(netdev)) {
		err = netxen_nic_attach(adapter);
		if (err)
			goto done;

		err = netxen_nic_up(adapter, netdev);
		if (err) {
			netxen_nic_detach(adapter);
			goto done;
		}

		netxen_restore_indev_addr(netdev, NETDEV_UP);
	}

	netif_device_attach(netdev);

done:
	adapter->fw_fail_cnt = 0;
	clear_bit(__NX_RESETTING, &adapter->state);
	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 120 94.49% 1 33.33%
Amit Kumar Salecha 6 4.72% 1 33.33%
Rajesh K Borundia 1 0.79% 1 33.33%
Total 127 100.00% 3 100.00%


static void

netxen_fwinit_work(struct work_struct *work)
{
	struct netxen_adapter *adapter = container_of(work,
				struct netxen_adapter, fw_work.work);
	int dev_state;
	int count;
	dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
	if (adapter->flags & NETXEN_FW_RESET_OWNER) {
		count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
		WARN_ON(count == 0);
		if (count == 1) {
			if (adapter->mdump.md_enabled) {
				rtnl_lock();
				netxen_dump_fw(adapter);
				rtnl_unlock();
			}
			adapter->flags &= ~NETXEN_FW_RESET_OWNER;
			if (netxen_api_lock(adapter)) {
				clear_bit(__NX_RESETTING, &adapter->state);
				NXWR32(adapter, NX_CRB_DEV_STATE,
						NX_DEV_FAILED);
				return;
			}
			count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
			NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
			NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
			dev_state = NX_DEV_COLD;
			netxen_api_unlock(adapter);
		}
	}

	switch (dev_state) {
	case NX_DEV_COLD:
	case NX_DEV_READY:
		if (!netxen_start_firmware(adapter)) {
			netxen_schedule_work(adapter, netxen_attach_work, 0);
			return;
		}
		break;

	case NX_DEV_NEED_RESET:
	case NX_DEV_INITALIZING:
			netxen_schedule_work(adapter,
					netxen_fwinit_work, 2 * FW_POLL_DELAY);
			return;

	case NX_DEV_FAILED:
	default:
		nx_incr_dev_ref_cnt(adapter);
		break;
	}

	if (netxen_api_lock(adapter)) {
		clear_bit(__NX_RESETTING, &adapter->state);
		return;
	}
	NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
	netxen_api_unlock(adapter);
	dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
				adapter->netdev->name);

	clear_bit(__NX_RESETTING, &adapter->state);
}

Contributors
Person Tokens Prop Commits CommitProp
Manish Chopra 183 62.24% 1 20.00%
Dhananjay Phadke 99 33.67% 1 20.00%
Amit Kumar Salecha 12 4.08% 3 60.00%
Total 294 100.00% 5 100.00%


static void

netxen_detach_work(struct work_struct *work)
{
	struct netxen_adapter *adapter = container_of(work,
				struct netxen_adapter, fw_work.work);
	struct net_device *netdev = adapter->netdev;
	int ref_cnt = 0, delay;
	u32 status;

	netif_device_detach(netdev);

	netxen_nic_down(adapter, netdev);

	rtnl_lock();
	netxen_nic_detach(adapter);
	rtnl_unlock();

	status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);

	if (status & NX_RCODE_FATAL_ERROR)
		goto err_ret;

	if (adapter->temp == NX_TEMP_PANIC)
		goto err_ret;

	if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
		ref_cnt = nx_decr_dev_ref_cnt(adapter);

	if (ref_cnt == -EIO)
		goto err_ret;

	delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);

	adapter->fw_wait_cnt = 0;
	netxen_schedule_work(adapter, netxen_fwinit_work, delay);

	return;

err_ret:
	clear_bit(__NX_RESETTING, &adapter->state);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 116 67.84% 1 20.00%
Amit Kumar Salecha 42 24.56% 3 60.00%
Manish Chopra 13 7.60% 1 20.00%
Total 171 100.00% 5 100.00%


static int

netxen_check_health(struct netxen_adapter *adapter)
{
	u32 state, heartbit;
	u32 peg_status;
	struct net_device *netdev = adapter->netdev;

	state = NXRD32(adapter, NX_CRB_DEV_STATE);
	if (state == NX_DEV_NEED_AER)
		return 0;

	if (netxen_nic_check_temp(adapter))
		goto detach;

	if (adapter->need_fw_reset) {
		if (nx_dev_request_reset(adapter))
			return 0;
		goto detach;
	}

	/* NX_DEV_NEED_RESET, this state can be marked in two cases
         * 1. Tx timeout 2. Fw hang
         * Send request to destroy context in case of tx timeout only
         * and doesn't required in case of Fw hang
         */
	if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
		adapter->need_fw_reset = 1;
		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
			goto detach;
	}

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		return 0;

	heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
	if (heartbit != adapter->heartbit) {
		adapter->heartbit = heartbit;
		adapter->fw_fail_cnt = 0;
		if (adapter->need_fw_reset)
			goto detach;
		return 0;
	}

	if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
		return 0;

	if (nx_dev_request_reset(adapter))
		return 0;

	clear_bit(__NX_FW_ATTACHED, &adapter->state);

	dev_err(&netdev->dev, "firmware hang detected\n");
	peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
	dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
			"PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
			"PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
			"PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
			"PEG_NET_4_PC: 0x%x\n",
			peg_status,
			NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
			NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
			NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
			NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
			NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
			NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
	if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
		dev_err(&adapter->pdev->dev,
			"Firmware aborted with error code 0x00006700. "
				"Device is being reset.\n");
detach:
	if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
			!test_and_set_bit(__NX_RESETTING, &adapter->state))
		netxen_schedule_work(adapter, netxen_detach_work, 0);
	return 1;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 150 43.73% 1 14.29%
Sritej Velaga 105 30.61% 1 14.29%
Amit Kumar Salecha 78 22.74% 3 42.86%
Narender Kumar 6 1.75% 1 14.29%
Manish Chopra 4 1.17% 1 14.29%
Total 343 100.00% 7 100.00%


static void

netxen_fw_poll_work(struct work_struct *work)
{
	struct netxen_adapter *adapter = container_of(work,
				struct netxen_adapter, fw_work.work);

	if (test_bit(__NX_RESETTING, &adapter->state))
		goto reschedule;

	if (test_bit(__NX_DEV_UP, &adapter->state) &&
	    !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
		if (!adapter->has_link_events) {

			netxen_nic_handle_phy_intr(adapter);

			if (adapter->link_changed)
				netxen_nic_set_link_parameters(adapter);
		}
	}

	if (netxen_check_health(adapter))
		return;

reschedule:
	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 101 91.82% 1 50.00%
Manish Chopra 9 8.18% 1 50.00%
Total 110 100.00% 2 100.00%


static ssize_t

netxen_store_bridged_mode(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t len)
{
	struct net_device *net = to_net_dev(dev);
	struct netxen_adapter *adapter = netdev_priv(net);
	unsigned long new;
	int ret = -EINVAL;

	if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
		goto err_out;

	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		goto err_out;

	if (kstrtoul(buf, 2, &new))
		goto err_out;

	if (!netxen_config_bridged_mode(adapter, !!new))
		ret = len;

err_out:
	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Narender Kumar 113 98.26% 1 33.33%
Jingoo Han 1 0.87% 1 33.33%
Dhananjay Phadke 1 0.87% 1 33.33%
Total 115 100.00% 3 100.00%


static ssize_t

netxen_show_bridged_mode(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct net_device *net = to_net_dev(dev);
	struct netxen_adapter *adapter;
	int bridged_mode = 0;

	adapter = netdev_priv(net);

	if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
		bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);

	return sprintf(buf, "%d\n", bridged_mode);
}

Contributors
Person Tokens Prop Commits CommitProp
Narender Kumar 77 100.00% 1 100.00%
Total 77 100.00% 1 100.00%


static struct device_attribute dev_attr_bridged_mode = {
       .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
       .show = netxen_show_bridged_mode,
       .store = netxen_store_bridged_mode,
};


static ssize_t

netxen_store_diag_mode(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t len)
{
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	unsigned long new;

	if (kstrtoul(buf, 2, &new))
		return -EINVAL;

	if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
		adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;

	return len;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 55 69.62% 1 33.33%
Narender Kumar 23 29.11% 1 33.33%
Jingoo Han 1 1.27% 1 33.33%
Total 79 100.00% 3 100.00%


static ssize_t

netxen_show_diag_mode(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct netxen_adapter *adapter = dev_get_drvdata(dev);

	return sprintf(buf, "%d\n",
			!!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 37 77.08% 1 50.00%
Narender Kumar 11 22.92% 1 50.00%
Total 48 100.00% 2 100.00%


static struct device_attribute dev_attr_diag_mode = {
	.attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
	.show = netxen_show_diag_mode,
	.store = netxen_store_diag_mode,
};


static int

netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
		loff_t offset, size_t size)
{
	size_t crb_size = 4;

	if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
		return -EIO;

	if (offset < NETXEN_PCI_CRBSPACE) {
		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
			return -EINVAL;

		if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
						NETXEN_PCI_CAMQM_2M_END))
			crb_size = 8;
		else
			return -EINVAL;
	}

	if ((size != crb_size) || (offset & (crb_size-1)))
		return  -EINVAL;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 54 51.43% 1 33.33%
Dhananjay Phadke 45 42.86% 1 33.33%
Narender Kumar 6 5.71% 1 33.33%
Total 105 100.00% 3 100.00%


static ssize_t

netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr,
		char *buf, loff_t offset, size_t size)
{
	struct device *dev = kobj_to_dev(kobj);
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	u32 data;
	u64 qmdata;
	int ret;

	ret = netxen_sysfs_validate_crb(adapter, offset, size);
	if (ret != 0)
		return ret;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
		ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
					NETXEN_PCI_CAMQM_2M_END)) {
		netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
		memcpy(buf, &qmdata, size);
	} else {
		data = NXRD32(adapter, offset);
		memcpy(buf, &data, size);
	}

	return size;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 93 63.27% 1 25.00%
Amit Kumar Salecha 48 32.65% 1 25.00%
Chris Wright 5 3.40% 1 25.00%
Amitoj Kaur Chawla 1 0.68% 1 25.00%
Total 147 100.00% 4 100.00%


static ssize_t

netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr,
		char *buf, loff_t offset, size_t size)
{
	struct device *dev = kobj_to_dev(kobj);
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	u32 data;
	u64 qmdata;
	int ret;

	ret = netxen_sysfs_validate_crb(adapter, offset, size);
	if (ret != 0)
		return ret;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
		ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
					NETXEN_PCI_CAMQM_2M_END)) {
		memcpy(&qmdata, buf, size);
		netxen_pci_camqm_write_2M(adapter, offset, qmdata);
	} else {
		memcpy(&data, buf, size);
		NXWR32(adapter, offset, data);
	}

	return size;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 93 63.70% 1 25.00%
Amit Kumar Salecha 47 32.19% 1 25.00%
Chris Wright 5 3.42% 1 25.00%
Amitoj Kaur Chawla 1 0.68% 1 25.00%
Total 146 100.00% 4 100.00%


static int

netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
		loff_t offset, size_t size)
{
	if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
		return -EIO;

	if ((size != 8) || (offset & 0x7))
		return  -EIO;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 53 100.00% 1 100.00%
Total 53 100.00% 1 100.00%


static ssize_t

netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr,
		char *buf, loff_t offset, size_t size)
{
	struct device *dev = kobj_to_dev(kobj);
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	u64 data;
	int ret;

	ret = netxen_sysfs_validate_mem(adapter, offset, size);
	if (ret != 0)
		return ret;

	if (adapter->pci_mem_read(adapter, offset, &data))
		return -EIO;

	memcpy(buf, &data, size);

	return size;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 102 94.44% 1 33.33%
Chris Wright 5 4.63% 1 33.33%
Amitoj Kaur Chawla 1 0.93% 1 33.33%
Total 108 100.00% 3 100.00%



static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr, char *buf,
		loff_t offset, size_t size)
{
	struct device *dev = kobj_to_dev(kobj);
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	u64 data;
	int ret;

	ret = netxen_sysfs_validate_mem(adapter, offset, size);
	if (ret != 0)
		return ret;

	memcpy(&data, buf, size);

	if (adapter->pci_mem_write(adapter, offset, data))
		return -EIO;

	return size;
}


Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 100 93.46% 1 25.00%
Chris Wright 5 4.67% 1 25.00%
Amitoj Kaur Chawla 1 0.93% 1 25.00%
Amit Kumar Salecha 1 0.93% 1 25.00%
Total 107 100.00% 4 100.00%


static const struct bin_attribute bin_attr_crb = {
	.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
	.size = 0,
	.read = netxen_sysfs_read_crb,
	.write = netxen_sysfs_write_crb,
};


static const struct bin_attribute bin_attr_mem = {
	.attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
	.size = 0,
	.read = netxen_sysfs_read_mem,
	.write = netxen_sysfs_write_mem,
};


static ssize_t

netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr,
		char *buf, loff_t offset, size_t size)
{
	struct device *dev = kobj_to_dev(kobj);
	struct netxen_adapter *adapter = dev_get_drvdata(dev);
	struct net_device *netdev = adapter->netdev;
	struct netxen_dimm_cfg dimm;
	u8 dw, rows, cols, banks, ranks;
	u32 val;

	if (size < attr->size) {
		netdev_err(netdev, "Invalid size\n");
		return -EINVAL;
	}

	memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
	val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);

	/* Checks if DIMM info is valid. */
	if (val & NETXEN_DIMM_VALID_FLAG) {
		netdev_err(netdev, "Invalid DIMM flag\n");
		dimm.presence = 0xff;
		goto out;
	}

	rows = NETXEN_DIMM_NUMROWS(val);
	cols = NETXEN_DIMM_NUMCOLS(val);
	ranks = NETXEN_DIMM_NUMRANKS(val);
	banks = NETXEN_DIMM_NUMBANKS(val);
	dw = NETXEN_DIMM_DATAWIDTH(val);

	dimm.presence = (val & NETXEN_DIMM_PRESENT);

	/* Checks if DIMM info is present. */
	if (!dimm.presence) {
		netdev_err(netdev, "DIMM not present\n");
		goto out;
	}

	dimm.dimm_type = NETXEN_DIMM_TYPE(val);

	switch (dimm.dimm_type) {
	case NETXEN_DIMM_TYPE_RDIMM:
	case NETXEN_DIMM_TYPE_UDIMM:
	case NETXEN_DIMM_TYPE_SO_DIMM:
	case NETXEN_DIMM_TYPE_Micro_DIMM:
	case NETXEN_DIMM_TYPE_Mini_RDIMM:
	case NETXEN_DIMM_TYPE_Mini_UDIMM:
		break;
	default:
		netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
		goto out;
	}

	if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
		dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
	else
		dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);

	if (val & NETXEN_DIMM_SIZE) {
		dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
		goto out;
	}

	if (!rows) {
		netdev_err(netdev, "Invalid no of rows %x\n", rows);
		goto out;
	}

	if (!cols) {
		netdev_err(netdev, "Invalid no of columns %x\n", cols);
		goto out;
	}

	if (!banks) {
		netdev_err(netdev, "Invalid no of banks %x\n", banks);
		goto out;
	}

	ranks += 1;

	switch (dw) {
	case 0x0:
		dw = 32;
		break;
	case 0x1:
		dw = 33;
		break;
	case 0x2:
		dw = 36;
		break;
	case 0x3:
		dw = 64;
		break;
	case 0x4:
		dw = 72;
		break;
	case 0x5:
		dw = 80;
		break;
	case 0x6:
		dw = 128;
		break;
	case 0x7:
		dw = 144;
		break;
	default:
		netdev_err(netdev, "Invalid data-width %x\n", dw);
		goto out;
	}

	dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
	/* Size returned in MB. */
	dimm.size = (dimm.size) / 0x100000;
out:
	memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
	return sizeof(struct netxen_dimm_cfg);

}

Contributors
Person Tokens Prop Commits CommitProp
Sucheta Chakraborty 501 98.62% 1 25.00%
Vladimir Zapolskiy 5 0.98% 1 25.00%
Amitoj Kaur Chawla 1 0.20% 1 25.00%
Narender Kumar 1 0.20% 1 25.00%
Total 508 100.00% 4 100.00%


static const struct bin_attribute bin_attr_dimm = {
	.attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
	.size = sizeof(struct netxen_dimm_cfg),
	.read = netxen_sysfs_read_dimm,
};



static void

netxen_create_sysfs_entries(struct netxen_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;

	if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
		/* bridged_mode control */
		if (device_create_file(dev, &dev_attr_bridged_mode)) {
			dev_warn(dev,
				"failed to create bridged_mode sysfs entry\n");
		}
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 49 92.45% 1 33.33%
Rajesh K Borundia 3 5.66% 1 33.33%
Sucheta Chakraborty 1 1.89% 1 33.33%
Total 53 100.00% 3 100.00%


static void

netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
{
	struct device *dev = &adapter->pdev->dev;

	if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
		device_remove_file(dev, &dev_attr_bridged_mode);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 36 92.31% 1 50.00%
Rajesh K Borundia 3 7.69% 1 50.00%
Total 39 100.00% 2 100.00%


static void

netxen_create_diag_entries(struct netxen_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	struct device *dev;

	dev = &pdev->dev;
	if (device_create_file(dev, &dev_attr_diag_mode))
		dev_info(dev, "failed to create diag_mode sysfs entry\n");
	if (device_create_bin_file(dev, &bin_attr_crb))
		dev_info(dev, "failed to create crb sysfs entry\n");
	if (device_create_bin_file(dev, &bin_attr_mem))
		dev_info(dev, "failed to create mem sysfs entry\n");
	if (device_create_bin_file(dev, &bin_attr_dimm))
		dev_info(dev, "failed to create dimm sysfs entry\n");
}


Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 83 83.00% 1 50.00%
Sucheta Chakraborty 17 17.00% 1 50.00%
Total 100 100.00% 2 100.00%


static void

netxen_remove_diag_entries(struct netxen_adapter *adapter)
{
	struct pci_dev *pdev = adapter->pdev;
	struct device *dev = &pdev->dev;

	device_remove_file(dev, &dev_attr_diag_mode);
	device_remove_bin_file(dev, &bin_attr_crb);
	device_remove_bin_file(dev, &bin_attr_mem);
	device_remove_bin_file(dev, &bin_attr_dimm);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 51 82.26% 1 33.33%
Sucheta Chakraborty 8 12.90% 1 33.33%
Narender Kumar 3 4.84% 1 33.33%
Total 62 100.00% 3 100.00%

#ifdef CONFIG_INET


#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)


static int

netxen_destip_supported(struct netxen_adapter *adapter)
{
	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		return 0;

	if (adapter->ahw.cut_through)
		return 0;

	return 1;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%


static void

netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
{
	struct nx_ip_list  *cur, *tmp_cur;

	list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
		if (master) {
			if (cur->master) {
				netxen_config_ipaddr(adapter, cur->ip_addr,
						     NX_IP_DOWN);
				list_del(&cur->list);
				kfree(cur);
			}
		} else {
			netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
			list_del(&cur->list);
			kfree(cur);
		}
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Nikolay Aleksandrov 48 48.48% 1 33.33%
Rajesh K Borundia 46 46.46% 1 33.33%
Amit Kumar Salecha 5 5.05% 1 33.33%
Total 99 100.00% 3 100.00%


static bool

netxen_list_config_ip(struct netxen_adapter *adapter,
		struct in_ifaddr *ifa, unsigned long event)
{
	struct net_device *dev;
	struct nx_ip_list *cur, *tmp_cur;
	struct list_head *head;
	bool ret = false;

	dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;

	if (dev == NULL)
		goto out;

	switch (event) {
	case NX_IP_UP:
		list_for_each(head, &adapter->ip_list) {
			cur = list_entry(head, struct nx_ip_list, list);

			if (cur->ip_addr == ifa->ifa_address)
				goto out;
		}

		cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
		if (cur == NULL)
			goto out;
		if (is_vlan_dev(dev))
			dev = vlan_dev_real_dev(dev);
		cur->master = !!netif_is_bond_master(dev);
		cur->ip_addr = ifa->ifa_address;
		list_add_tail(&cur->list, &adapter->ip_list);
		netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
		ret = true;
		break;
	case NX_IP_DOWN:
		list_for_each_entry_safe(cur, tmp_cur,
					&adapter->ip_list, list) {
			if (cur->ip_addr == ifa->ifa_address) {
				list_del(&cur->list);
				kfree(cur);
				netxen_config_ipaddr(adapter, ifa->ifa_address,
						     NX_IP_DOWN);
				ret = true;
				break;
			}
		}
	}
out:
	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
Rajesh K Borundia 160 63.24% 1 25.00%
Nikolay Aleksandrov 79 31.23% 1 25.00%
Amit Kumar Salecha 11 4.35% 1 25.00%
Parav Pandit 3 1.19% 1 25.00%
Total 253 100.00% 4 100.00%


static void

netxen_config_indev_addr(struct netxen_adapter *adapter,
		struct net_device *dev, unsigned long event)
{
	struct in_device *indev;

	if (!netxen_destip_supported(adapter))
		return;

	indev = in_dev_get(dev);
	if (!indev)
		return;

	for_ifa(indev) {
		switch (event) {
		case NETDEV_UP:
			netxen_list_config_ip(adapter, ifa, NX_IP_UP);
			break;
		case NETDEV_DOWN:
			netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
			break;
		default:
			break;
		}
	} endfor_ifa(indev);

	in_dev_put(indev);
}

Contributors
Person Tokens Prop Commits CommitProp
Amit Kumar Salecha 56 57.73% 2 50.00%
Rajesh K Borundia 39 40.21% 1 25.00%
Nikolay Aleksandrov 2 2.06% 1 25.00%
Total 97 100.00% 4 100.00%


static void

netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)

{
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct nx_ip_list *pos, *tmp_pos;
	unsigned long ip_event;

	ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
	netxen_config_indev_addr(adapter, netdev, event);

	list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
		netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Rajesh K Borundia 79 97.53% 1 50.00%
Nikolay Aleksandrov 2 2.47% 1 50.00%
Total 81 100.00% 2 100.00%


static inline bool

netxen_config_checkdev(struct net_device *dev)
{
	struct netxen_adapter *adapter;

	if (!is_netxen_netdev(dev))
		return false;
	adapter = netdev_priv(dev);
	if (!adapter)
		return false;
	if (!netxen_destip_supported(adapter))
		return false;
	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return false;

	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 39 57.35% 1 50.00%
Nikolay Aleksandrov 29 42.65% 1 50.00%
Total 68 100.00% 2 100.00%

/**
 * netxen_config_master - configure addresses based on master
 * @dev: netxen device
 * @event: netdev event
 */


static void netxen_config_master(struct net_device *dev, unsigned long event)
{
	struct net_device *master, *slave;
	struct netxen_adapter *adapter = netdev_priv(dev);

	rcu_read_lock();
	master = netdev_master_upper_dev_get_rcu(dev);
	/*
         * This is the case where the netxen nic is being
         * enslaved and is dev_open()ed in bond_enslave()
         * Now we should program the bond's (and its vlans')
         * addresses in the netxen NIC.
         */
	if (master && netif_is_bond_master(master) &&
	    !netif_is_bond_slave(dev)) {
		netxen_config_indev_addr(adapter, master, event);
		for_each_netdev_rcu(&init_net, slave)
			if (is_vlan_dev(slave) &&
			    vlan_dev_real_dev(slave) == master)
				netxen_config_indev_addr(adapter, slave, event);
	}
	rcu_read_unlock();
	/*
         * This is the case where the netxen nic is being
         * released and is dev_close()ed in bond_release()
         * just before IFF_BONDING is stripped.
         */
	if (!master && dev->priv_flags & IFF_BONDING)
		netxen_free_ip_list(adapter, true);
}

Contributors
Person Tokens Prop Commits CommitProp
Nikolay Aleksandrov 118 97.52% 1 50.00%
Parav Pandit 3 2.48% 1 50.00%
Total 121 100.00% 2 100.00%



static int netxen_netdev_event(struct notifier_block *this,
				 unsigned long event, void *ptr)
{
	struct netxen_adapter *adapter;
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
	struct net_device *orig_dev = dev;
	struct net_device *slave;

recheck:
	if (dev == NULL)
		goto done;

	if (is_vlan_dev(dev)) {
		dev = vlan_dev_real_dev(dev);
		goto recheck;
	}
	if (event == NETDEV_UP || event == NETDEV_DOWN) {
		/* If this is a bonding device, look for netxen-based slaves*/
		if (netif_is_bond_master(dev)) {
			rcu_read_lock();
			for_each_netdev_in_bond_rcu(dev, slave) {
				if (!netxen_config_checkdev(slave))
					continue;
				adapter = netdev_priv(slave);
				netxen_config_indev_addr(adapter,
							 orig_dev, event);
			}
			rcu_read_unlock();
		} else {
			if (!netxen_config_checkdev(dev))
				goto done;
			adapter = netdev_priv(dev);
			/* Act only if the actual netxen is the target */
			if (orig_dev == dev)
				netxen_config_master(dev, event);
			netxen_config_indev_addr(adapter, orig_dev, event);
		}
	}
done:
	return NOTIFY_DONE;
}

Contributors
Person Tokens Prop Commits CommitProp
Nikolay Aleksandrov 169 90.86% 1 16.67%
Dhananjay Phadke 9 4.84% 1 16.67%
Parav Pandit 3 1.61% 1 16.67%
Jiri Pirko 3 1.61% 1 16.67%
Amit Kumar Salecha 1 0.54% 1 16.67%
Rajesh K Borundia 1 0.54% 1 16.67%
Total 186 100.00% 6 100.00%


static int

netxen_inetaddr_event(struct notifier_block *this,
		unsigned long event, void *ptr)
{
	struct netxen_adapter *adapter;
	struct net_device *dev, *slave;
	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
	unsigned long ip_event;

	dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
	ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
recheck:
	if (dev == NULL)
		goto done;

	if (is_vlan_dev(dev)) {
		dev = vlan_dev_real_dev(dev);
		goto recheck;
	}
	if (event == NETDEV_UP || event == NETDEV_DOWN) {
		/* If this is a bonding device, look for netxen-based slaves*/
		if (netif_is_bond_master(dev)) {
			rcu_read_lock();
			for_each_netdev_in_bond_rcu(dev, slave) {
				if (!netxen_config_checkdev(slave))
					continue;
				adapter = netdev_priv(slave);
				netxen_list_config_ip(adapter, ifa, ip_event);
			}
			rcu_read_unlock();
		} else {
			if (!netxen_config_checkdev(dev))
				goto done;
			adapter = netdev_priv(dev);
			netxen_list_config_ip(adapter, ifa, ip_event);
		}
	}
done:
	return NOTIFY_DONE;
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 110 55.00% 1 25.00%
Nikolay Aleksandrov 73 36.50% 1 25.00%
Rajesh K Borundia 14 7.00% 1 25.00%
Parav Pandit 3 1.50% 1 25.00%
Total 200 100.00% 4 100.00%


static struct notifier_block	netxen_netdev_cb = {
	.notifier_call = netxen_netdev_event,
};


static struct notifier_block netxen_inetaddr_cb = {
	.notifier_call = netxen_inetaddr_event,
};
#else

static void

netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
{ }
Contributors
Person Tokens Prop Commits CommitProp
Randy Dunlap 13 92.86% 1 50.00%
Rajesh K Borundia 1 7.14% 1 50.00%
Total 14 100.00% 2 100.00%


static void

netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
{ }
Contributors
Person Tokens Prop Commits CommitProp
Rajesh K Borundia 9 69.23% 1 50.00%
Nikolay Aleksandrov 4 30.77% 1 50.00%
Total 13 100.00% 2 100.00%

#endif


static const struct pci_error_handlers netxen_err_handler = {
	.error_detected = netxen_io_error_detected,
	.slot_reset = netxen_io_slot_reset,
	.resume = netxen_io_resume,
};


static struct pci_driver netxen_driver = {
	.name = netxen_nic_driver_name,
	.id_table = netxen_pci_tbl,
	.probe = netxen_nic_probe,
	.remove = netxen_nic_remove,
#ifdef CONFIG_PM
	.suspend = netxen_nic_suspend,
	.resume = netxen_nic_resume,
#endif
	.shutdown = netxen_nic_shutdown,
	.err_handler = &netxen_err_handler
};



static int __init netxen_init_module(void)
{
	printk(KERN_INFO "%s\n", netxen_nic_driver_string);

#ifdef CONFIG_INET
	register_netdevice_notifier(&netxen_netdev_cb);
	register_inetaddr_notifier(&netxen_inetaddr_cb);
#endif
	return pci_register_driver(&netxen_driver);
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 25 60.98% 3 60.00%
Amit S. Kale 16 39.02% 2 40.00%
Total 41 100.00% 5 100.00%


module_init(netxen_init_module);



static void __exit netxen_exit_module(void)
{
	pci_unregister_driver(&netxen_driver);

#ifdef CONFIG_INET
	unregister_inetaddr_notifier(&netxen_inetaddr_cb);
	unregister_netdevice_notifier(&netxen_netdev_cb);
#endif
}

Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 17 53.12% 2 66.67%
Amit S. Kale 15 46.88% 1 33.33%
Total 32 100.00% 3 100.00%


module_exit(netxen_exit_module);
Overall Contributors
Person Tokens Prop Commits CommitProp
Dhananjay Phadke 9129 57.88% 100 44.84%
Amit Kumar Salecha 1829 11.60% 28 12.56%
Amit S. Kale 800 5.07% 7 3.14%
Rajesh K Borundia 767 4.86% 7 3.14%
Manish Chopra 767 4.86% 6 2.69%
Sucheta Chakraborty 565 3.58% 2 0.90%
Nikolay Aleksandrov 539 3.42% 2 0.90%
Narender Kumar 377 2.39% 4 1.79%
Stephen Hemminger 198 1.26% 9 4.04%
Michał Mirosław 158 1.00% 2 0.90%
Mithlesh Thukral 140 0.89% 4 1.79%
Sritej Velaga 105 0.67% 1 0.45%
Shahed Shaikh 87 0.55% 1 0.45%
Yinglin Luan 46 0.29% 1 0.45%
Eric Dumazet 40 0.25% 5 2.24%
Jarod Wilson 31 0.20% 1 0.45%
Chris Wright 20 0.13% 1 0.45%
Randy Dunlap 18 0.11% 2 0.90%
Sony Chacko 15 0.10% 1 0.45%
Al Viro 14 0.09% 1 0.45%
Yang Hongyang 14 0.09% 1 0.45%
Parav Pandit 12 0.08% 1 0.45%
Yijing Wang 12 0.08% 2 0.90%
Vladimir Zapolskiy 10 0.06% 1 0.45%
Ian Campbell 10 0.06% 2 0.90%
Jiri Pirko 7 0.04% 4 1.79%
Dan Carpenter 6 0.04% 1 0.45%
Benoit Taine 6 0.04% 1 0.45%
Amitoj Kaur Chawla 5 0.03% 1 0.45%
Jeff Garzik 4 0.03% 2 0.90%
Harvey Harrison 4 0.03% 1 0.45%
Alexander Gordeev 4 0.03% 1 0.45%
Florian Westphal 3 0.02% 1 0.45%
Tejun Heo 3 0.02% 1 0.45%
Wilfried Klaebe 3 0.02% 1 0.45%
Bhumika Goyal 3 0.02% 1 0.45%
Arnaldo Carvalho de Melo 3 0.02% 2 0.90%
Joe Perches 3 0.02% 2 0.90%
Jingoo Han 2 0.01% 1 0.45%
Santosh Nayak 2 0.01% 1 0.45%
David Howells 2 0.01% 1 0.45%
Michal Schmidt 1 0.01% 1 0.45%
Patrick McHardy 1 0.01% 1 0.45%
Danny Kukawka 1 0.01% 1 0.45%
Javier Martinez Canillas 1 0.01% 1 0.45%
Johannes Berg 1 0.01% 1 0.45%
Jeff Kirsher 1 0.01% 1 0.45%
Wang Chen 1 0.01% 1 0.45%
Roel Kluin 1 0.01% 1 0.45%
Eric W. Biedermann 1 0.01% 1 0.45%
Alexey Dobriyan 0.00% 0 0.00%
Total 15772 100.00% 223 100.00%
Directory: drivers/net/ethernet/qlogic/netxen

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Mithlesh Thukral	17	60.71%	1	20.00%
Dhananjay Phadke	10	35.71%	3	60.00%
Amit Kumar Salecha	1	3.57%	1	20.00%
Total	28	100.00%	5	100.00%
cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c

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