Release 4.7 drivers/net/ethernet/rocker/rocker_main.c

Directory: drivers/net/ethernet/rocker
/*
 * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver
 * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/sort.h>
#include <linux/random.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/bitops.h>
#include <linux/ctype.h>
#include <net/switchdev.h>
#include <net/rtnetlink.h>
#include <net/netevent.h>
#include <net/arp.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <generated/utsrelease.h>

#include "rocker_hw.h"
#include "rocker.h"
#include "rocker_tlv.h"


static const char rocker_driver_name[] = "rocker";


static const struct pci_device_id rocker_pci_id_table[] = {
	{PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0},
	{0, }
};


struct rocker_wait {
	
wait_queue_head_t wait;
	
bool done;
	
bool nowait;
};



static void rocker_wait_reset(struct rocker_wait *wait)
{
	wait->done = false;
	wait->nowait = false;
}

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jiri pirko jiri pirko 23 100.00% 2 100.00%
Total 23 100.00% 2 100.00%



static void rocker_wait_init(struct rocker_wait *wait)
{
	init_waitqueue_head(&wait->wait);
	rocker_wait_reset(wait);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 22 91.67% 1 50.00%
scott feldman scott feldman 2 8.33% 1 50.00%
Total 24 100.00% 2 100.00%



static struct rocker_wait *rocker_wait_create(void)
{
	struct rocker_wait *wait;

	wait = kzalloc(sizeof(*wait), GFP_KERNEL);
	if (!wait)
		return NULL;
	return wait;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 24 61.54% 2 66.67%
scott feldman scott feldman 15 38.46% 1 33.33%
Total 39 100.00% 3 100.00%



static void rocker_wait_destroy(struct rocker_wait *wait)
{
	kfree(wait);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 10 62.50% 2 66.67%
scott feldman scott feldman 6 37.50% 1 33.33%
Total 16 100.00% 3 100.00%



static bool rocker_wait_event_timeout(struct rocker_wait *wait,
				      unsigned long timeout)
{
	wait_event_timeout(wait->wait, wait->done, HZ / 10);
	if (!wait->done)
		return false;
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 34 79.07% 2 66.67%
scott feldman scott feldman 9 20.93% 1 33.33%
Total 43 100.00% 3 100.00%



static void rocker_wait_wake_up(struct rocker_wait *wait)
{
	wait->done = true;
	wake_up(&wait->wait);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 21 84.00% 2 66.67%
scott feldman scott feldman 4 16.00% 1 33.33%
Total 25 100.00% 3 100.00%



static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector)
{
	return rocker->msix_entries[vector].vector;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 22 84.62% 1 50.00%
scott feldman scott feldman 4 15.38% 1 50.00%
Total 26 100.00% 2 100.00%



static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port)
{
	return rocker_msix_vector(rocker_port->rocker,
				  ROCKER_MSIX_VEC_TX(rocker_port->port_number));
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 24 88.89% 2 50.00%
scott feldman scott feldman 3 11.11% 2 50.00%
Total 27 100.00% 4 100.00%



static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port)
{
	return rocker_msix_vector(rocker_port->rocker,
				  ROCKER_MSIX_VEC_RX(rocker_port->port_number));
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 22 81.48% 2 50.00%
scott feldman scott feldman 5 18.52% 2 50.00%
Total 27 100.00% 4 100.00%


#define rocker_write32(rocker, reg, val)	\
	writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))

#define rocker_read32(rocker, reg)	\
	readl((rocker)->hw_addr + (ROCKER_ ## reg))

#define rocker_write64(rocker, reg, val)	\
	writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))

#define rocker_read64(rocker, reg)	\
	readq((rocker)->hw_addr + (ROCKER_ ## reg))

/*****************************
 * HW basic testing functions
 *****************************/



static int rocker_reg_test(const struct rocker *rocker)
{
	const struct pci_dev *pdev = rocker->pdev;
	u64 test_reg;
	u64 rnd;

	rnd = prandom_u32();
	rnd >>= 1;
	rocker_write32(rocker, TEST_REG, rnd);
	test_reg = rocker_read32(rocker, TEST_REG);
	if (test_reg != rnd * 2) {
		dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
			test_reg, rnd * 2);
		return -EIO;
	}

	rnd = prandom_u32();
	rnd <<= 31;
	rnd |= prandom_u32();
	rocker_write64(rocker, TEST_REG64, rnd);
	test_reg = rocker_read64(rocker, TEST_REG64);
	if (test_reg != rnd * 2) {
		dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
			test_reg, rnd * 2);
		return -EIO;
	}

	return 0;
}

Contributors
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jiri pirko jiri pirko 129 86.00% 2 50.00%
scott feldman scott feldman 21 14.00% 2 50.00%
Total 150 100.00% 4 100.00%



static int rocker_dma_test_one(const struct rocker *rocker,
			       struct rocker_wait *wait, u32 test_type,
			       dma_addr_t dma_handle, const unsigned char *buf,
			       const unsigned char *expect, size_t size)
{
	const struct pci_dev *pdev = rocker->pdev;
	int i;

	rocker_wait_reset(wait);
	rocker_write32(rocker, TEST_DMA_CTRL, test_type);

	if (!rocker_wait_event_timeout(wait, HZ / 10)) {
		dev_err(&pdev->dev, "no interrupt received within a timeout\n");
		return -EIO;
	}

	for (i = 0; i < size; i++) {
		if (buf[i] != expect[i]) {
			dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
				buf[i], i, expect[i]);
			return -EIO;
		}
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 120 79.47% 2 40.00%
scott feldman scott feldman 30 19.87% 2 40.00%
simon horman simon horman 1 0.66% 1 20.00%
Total 151 100.00% 5 100.00%


#define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)

#define ROCKER_TEST_DMA_FILL_PATTERN 0x96



static int rocker_dma_test_offset(const struct rocker *rocker,
				  struct rocker_wait *wait, int offset)
{
	struct pci_dev *pdev = rocker->pdev;
	unsigned char *alloc;
	unsigned char *buf;
	unsigned char *expect;
	dma_addr_t dma_handle;
	int i;
	int err;

	alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
			GFP_KERNEL | GFP_DMA);
	if (!alloc)
		return -ENOMEM;
	buf = alloc + offset;
	expect = buf + ROCKER_TEST_DMA_BUF_SIZE;

	dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
				    PCI_DMA_BIDIRECTIONAL);
	if (pci_dma_mapping_error(pdev, dma_handle)) {
		err = -EIO;
		goto free_alloc;
	}

	rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
	rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);

	memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
	err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
				  dma_handle, buf, expect,
				  ROCKER_TEST_DMA_BUF_SIZE);
	if (err)
		goto unmap;

	memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
	err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
				  dma_handle, buf, expect,
				  ROCKER_TEST_DMA_BUF_SIZE);
	if (err)
		goto unmap;

	prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
	for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
		expect[i] = ~buf[i];
	err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
				  dma_handle, buf, expect,
				  ROCKER_TEST_DMA_BUF_SIZE);
	if (err)
		goto unmap;

unmap:
	pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
			 PCI_DMA_BIDIRECTIONAL);
free_alloc:
	kfree(alloc);

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 237 82.01% 4 50.00%
scott feldman scott feldman 52 17.99% 4 50.00%
Total 289 100.00% 8 100.00%



static int rocker_dma_test(const struct rocker *rocker,
			   struct rocker_wait *wait)
{
	int i;
	int err;

	for (i = 0; i < 8; i++) {
		err = rocker_dma_test_offset(rocker, wait, i);
		if (err)
			return err;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 51 86.44% 3 50.00%
scott feldman scott feldman 8 13.56% 3 50.00%
Total 59 100.00% 6 100.00%



static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
{
	struct rocker_wait *wait = dev_id;

	rocker_wait_wake_up(wait);

	return IRQ_HANDLED;
}

Contributors
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jiri pirko jiri pirko 27 96.43% 2 66.67%
scott feldman scott feldman 1 3.57% 1 33.33%
Total 28 100.00% 3 100.00%



static int rocker_basic_hw_test(const struct rocker *rocker)
{
	const struct pci_dev *pdev = rocker->pdev;
	struct rocker_wait wait;
	int err;

	err = rocker_reg_test(rocker);
	if (err) {
		dev_err(&pdev->dev, "reg test failed\n");
		return err;
	}

	err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
			  rocker_test_irq_handler, 0,
			  rocker_driver_name, &wait);
	if (err) {
		dev_err(&pdev->dev, "cannot assign test irq\n");
		return err;
	}

	rocker_wait_init(&wait);
	rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);

	if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
		dev_err(&pdev->dev, "no interrupt received within a timeout\n");
		err = -EIO;
		goto free_irq;
	}

	err = rocker_dma_test(rocker, &wait);
	if (err)
		dev_err(&pdev->dev, "dma test failed\n");

free_irq:
	free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 167 90.27% 3 50.00%
scott feldman scott feldman 18 9.73% 3 50.00%
Total 185 100.00% 6 100.00%

/******************************************
 * DMA rings and descriptors manipulations
 ******************************************/



static u32 __pos_inc(u32 pos, size_t limit)
{
	return ++pos == limit ? 0 : pos;
}

Contributors
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jiri pirko jiri pirko 20 90.91% 2 66.67%
scott feldman scott feldman 2 9.09% 1 33.33%
Total 22 100.00% 3 100.00%



static int rocker_desc_err(const struct rocker_desc_info *desc_info)
{
	int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;

	switch (err) {
	case ROCKER_OK:
		return 0;
	case -ROCKER_ENOENT:
		return -ENOENT;
	case -ROCKER_ENXIO:
		return -ENXIO;
	case -ROCKER_ENOMEM:
		return -ENOMEM;
	case -ROCKER_EEXIST:
		return -EEXIST;
	case -ROCKER_EINVAL:
		return -EINVAL;
	case -ROCKER_EMSGSIZE:
		return -EMSGSIZE;
	case -ROCKER_ENOTSUP:
		return -EOPNOTSUPP;
	case -ROCKER_ENOBUFS:
		return -ENOBUFS;
	}

	return -EINVAL;
}

Contributors
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jiri pirko jiri pirko 100 96.15% 2 66.67%
scott feldman scott feldman 4 3.85% 1 33.33%
Total 104 100.00% 3 100.00%



static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info)
{
	desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 21 100.00% 2 100.00%
Total 21 100.00% 2 100.00%



static bool rocker_desc_gen(const struct rocker_desc_info *desc_info)
{
	u32 comp_err = desc_info->desc->comp_err;

	return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
}

Contributors
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jiri pirko jiri pirko 29 96.67% 2 66.67%
scott feldman scott feldman 1 3.33% 1 33.33%
Total 30 100.00% 3 100.00%


static void *

rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info)
{
	return (void *)(uintptr_t)desc_info->desc->cookie;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 23 85.19% 2 66.67%
scott feldman scott feldman 4 14.81% 1 33.33%
Total 27 100.00% 3 100.00%



static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info,
				       void *ptr)
{
	desc_info->desc->cookie = (uintptr_t) ptr;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 27 100.00% 2 100.00%
Total 27 100.00% 2 100.00%


static struct rocker_desc_info *

rocker_desc_head_get(const struct rocker_dma_ring_info *info)
{
	static struct rocker_desc_info *desc_info;
	u32 head = __pos_inc(info->head, info->size);

	desc_info = &info->desc_info[info->head];
	if (head == info->tail)
		return NULL; /* ring full */
	desc_info->tlv_size = 0;
	return desc_info;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 52 77.61% 3 60.00%
scott feldman scott feldman 15 22.39% 2 40.00%
Total 67 100.00% 5 100.00%



static void rocker_desc_commit(const struct rocker_desc_info *desc_info)
{
	desc_info->desc->buf_size = desc_info->data_size;
	desc_info->desc->tlv_size = desc_info->tlv_size;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 28 87.50% 2 66.67%
scott feldman scott feldman 4 12.50% 1 33.33%
Total 32 100.00% 3 100.00%



static void rocker_desc_head_set(const struct rocker *rocker,
				 struct rocker_dma_ring_info *info,
				 const struct rocker_desc_info *desc_info)
{
	u32 head = __pos_inc(info->head, info->size);

	BUG_ON(head == info->tail);
	rocker_desc_commit(desc_info);
	info->head = head;
	rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 63 88.73% 2 50.00%
scott feldman scott feldman 8 11.27% 2 50.00%
Total 71 100.00% 4 100.00%


static struct rocker_desc_info *

rocker_desc_tail_get(struct rocker_dma_ring_info *info)
{
	static struct rocker_desc_info *desc_info;

	if (info->tail == info->head)
		return NULL; /* nothing to be done between head and tail */
	desc_info = &info->desc_info[info->tail];
	if (!rocker_desc_gen(desc_info))
		return NULL; /* gen bit not set, desc is not ready yet */
	info->tail = __pos_inc(info->tail, info->size);
	desc_info->tlv_size = desc_info->desc->tlv_size;
	return desc_info;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 59 69.41% 2 66.67%
scott feldman scott feldman 26 30.59% 1 33.33%
Total 85 100.00% 3 100.00%



static void rocker_dma_ring_credits_set(const struct rocker *rocker,
					const struct rocker_dma_ring_info *info,
					u32 credits)
{
	if (credits)
		rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
}

Contributors
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jiri pirko jiri pirko 35 89.74% 1 50.00%
scott feldman scott feldman 4 10.26% 1 50.00%
Total 39 100.00% 2 100.00%



static unsigned long rocker_dma_ring_size_fix(size_t size)
{
	return max(ROCKER_DMA_SIZE_MIN,
		   min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
}

Contributors
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jiri pirko jiri pirko 19 73.08% 1 33.33%
scott feldman scott feldman 7 26.92% 2 66.67%
Total 26 100.00% 3 100.00%



static int rocker_dma_ring_create(const struct rocker *rocker,
				  unsigned int type,
				  size_t size,
				  struct rocker_dma_ring_info *info)
{
	int i;

	BUG_ON(size != rocker_dma_ring_size_fix(size));
	info->size = size;
	info->type = type;
	info->head = 0;
	info->tail = 0;
	info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
				  GFP_KERNEL);
	if (!info->desc_info)
		return -ENOMEM;

	info->desc = pci_alloc_consistent(rocker->pdev,
					  info->size * sizeof(*info->desc),
					  &info->mapaddr);
	if (!info->desc) {
		kfree(info->desc_info);
		return -ENOMEM;
	}

	for (i = 0; i < info->size; i++)
		info->desc_info[i].desc = &info->desc[i];

	rocker_write32(rocker, DMA_DESC_CTRL(info->type),
		       ROCKER_DMA_DESC_CTRL_RESET);
	rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
	rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);

	return 0;
}

Contributors
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jiri pirko jiri pirko 177 79.73% 3 60.00%
scott feldman scott feldman 45 20.27% 2 40.00%
Total 222 100.00% 5 100.00%



static void rocker_dma_ring_destroy(const struct rocker *rocker,
				    const struct rocker_dma_ring_info *info)
{
	rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);

	pci_free_consistent(rocker->pdev,
			    info->size * sizeof(struct rocker_desc),
			    info->desc, info->mapaddr);
	kfree(info->desc_info);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 49 76.56% 2 40.00%
scott feldman scott feldman 13 20.31% 2 40.00%
simon horman simon horman 2 3.12% 1 20.00%
Total 64 100.00% 5 100.00%



static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker,
					     struct rocker_dma_ring_info *info)
{
	int i;

	BUG_ON(info->head || info->tail);

	/* When ring is consumer, we need to advance head for each desc.
         * That tells hw that the desc is ready to be used by it.
         */
	for (i = 0; i < info->size - 1; i++)
		rocker_desc_head_set(rocker, info, &info->desc_info[i]);
	rocker_desc_commit(&info->desc_info[i]);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 65 86.67% 3 60.00%
scott feldman scott feldman 10 13.33% 2 40.00%
Total 75 100.00% 5 100.00%



static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker,
				      const struct rocker_dma_ring_info *info,
				      int direction, size_t buf_size)
{
	struct pci_dev *pdev = rocker->pdev;
	int i;
	int err;

	for (i = 0; i < info->size; i++) {
		struct rocker_desc_info *desc_info = &info->desc_info[i];
		struct rocker_desc *desc = &info->desc[i];
		dma_addr_t dma_handle;
		char *buf;

		buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
		if (!buf) {
			err = -ENOMEM;
			goto rollback;
		}

		dma_handle = pci_map_single(pdev, buf, buf_size, direction);
		if (pci_dma_mapping_error(pdev, dma_handle)) {
			kfree(buf);
			err = -EIO;
			goto rollback;
		}

		desc_info->data = buf;
		desc_info->data_size = buf_size;
		dma_unmap_addr_set(desc_info, mapaddr, dma_handle);

		desc->buf_addr = dma_handle;
		desc->buf_size = buf_size;
	}
	return 0;

rollback:
	for (i--; i >= 0; i--) {
		const struct rocker_desc_info *desc_info = &info->desc_info[i];

		pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
				 desc_info->data_size, direction);
		kfree(desc_info->data);
	}
	return err;
}

Contributors
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jiri pirko jiri pirko 214 86.99% 4 57.14%
scott feldman scott feldman 32 13.01% 3 42.86%
Total 246 100.00% 7 100.00%



static void rocker_dma_ring_bufs_free(const struct rocker *rocker,
				      const struct rocker_dma_ring_info *info,
				      int direction)
{
	struct pci_dev *pdev = rocker->pdev;
	int i;

	for (i = 0; i < info->size; i++) {
		const struct rocker_desc_info *desc_info = &info->desc_info[i];
		struct rocker_desc *desc = &info->desc[i];

		desc->buf_addr = 0;
		desc->buf_size = 0;
		pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
				 desc_info->data_size, direction);
		kfree(desc_info->data);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 107 93.86% 3 50.00%
scott feldman scott feldman 7 6.14% 3 50.00%
Total 114 100.00% 6 100.00%



static int rocker_dma_cmd_ring_wait_alloc(struct rocker_desc_info *desc_info)
{
	struct rocker_wait *wait;

	wait = rocker_wait_create();
	if (!wait)
		return -ENOMEM;
	rocker_desc_cookie_ptr_set(desc_info, wait);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 27 67.50% 3 75.00%
scott feldman scott feldman 13 32.50% 1 25.00%
Total 40 100.00% 4 100.00%


static void

rocker_dma_cmd_ring_wait_free(const struct rocker_desc_info *desc_info)
{
	struct rocker_wait *wait = rocker_desc_cookie_ptr_get(desc_info);

	rocker_wait_destroy(wait);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 27 100.00% 2 100.00%
Total 27 100.00% 2 100.00%



static int rocker_dma_cmd_ring_waits_alloc(const struct rocker *rocker)
{
	const struct rocker_dma_ring_info *cmd_ring = &rocker->cmd_ring;
	int i;
	int err;

	for (i = 0; i < cmd_ring->size; i++) {
		err = rocker_dma_cmd_ring_wait_alloc(&cmd_ring->desc_info[i]);
		if (err)
			goto rollback;
	}
	return 0;

rollback:
	for (i--; i >= 0; i--)
		rocker_dma_cmd_ring_wait_free(&cmd_ring->desc_info[i]);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 76 78.35% 2 40.00%
scott feldman scott feldman 20 20.62% 2 40.00%
simon horman simon horman 1 1.03% 1 20.00%
Total 97 100.00% 5 100.00%



static void rocker_dma_cmd_ring_waits_free(const struct rocker *rocker)
{
	const struct rocker_dma_ring_info *cmd_ring = &rocker->cmd_ring;
	int i;

	for (i = 0; i < cmd_ring->size; i++)
		rocker_dma_cmd_ring_wait_free(&cmd_ring->desc_info[i]);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 44 84.62% 2 66.67%
scott feldman scott feldman 8 15.38% 1 33.33%
Total 52 100.00% 3 100.00%



static int rocker_dma_rings_init(struct rocker *rocker)
{
	const struct pci_dev *pdev = rocker->pdev;
	int err;

	err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
				     ROCKER_DMA_CMD_DEFAULT_SIZE,
				     &rocker->cmd_ring);
	if (err) {
		dev_err(&pdev->dev, "failed to create command dma ring\n");
		return err;
	}

	spin_lock_init(&rocker->cmd_ring_lock);

	err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
					 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
	if (err) {
		dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
		goto err_dma_cmd_ring_bufs_alloc;
	}

	err = rocker_dma_cmd_ring_waits_alloc(rocker);
	if (err) {
		dev_err(&pdev->dev, "failed to alloc command dma ring waits\n");
		goto err_dma_cmd_ring_waits_alloc;
	}

	err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
				     ROCKER_DMA_EVENT_DEFAULT_SIZE,
				     &rocker->event_ring);
	if (err) {
		dev_err(&pdev->dev, "failed to create event dma ring\n");
		goto err_dma_event_ring_create;
	}

	err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
					 PCI_DMA_FROMDEVICE, PAGE_SIZE);
	if (err) {
		dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
		goto err_dma_event_ring_bufs_alloc;
	}
	rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
	return 0;

err_dma_event_ring_bufs_alloc:
	rocker_dma_ring_destroy(rocker, &rocker->event_ring);
err_dma_event_ring_create:
	rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
				  PCI_DMA_BIDIRECTIONAL);
err_dma_cmd_ring_waits_alloc:
	rocker_dma_cmd_ring_waits_free(rocker);
err_dma_cmd_ring_bufs_alloc:
	rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 194 74.90% 1 25.00%
scott feldman scott feldman 65 25.10% 3 75.00%
Total 259 100.00% 4 100.00%



static void rocker_dma_rings_fini(struct rocker *rocker)
{
	rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
				  PCI_DMA_BIDIRECTIONAL);
	rocker_dma_ring_destroy(rocker, &rocker->event_ring);
	rocker_dma_cmd_ring_waits_free(rocker);
	rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
				  PCI_DMA_BIDIRECTIONAL);
	rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 35 58.33% 2 40.00%
scott feldman scott feldman 24 40.00% 2 40.00%
simon horman simon horman 1 1.67% 1 20.00%
Total 60 100.00% 5 100.00%



static int rocker_dma_rx_ring_skb_map(const struct rocker_port *rocker_port,
				      struct rocker_desc_info *desc_info,
				      struct sk_buff *skb, size_t buf_len)
{
	const struct rocker *rocker = rocker_port->rocker;
	struct pci_dev *pdev = rocker->pdev;
	dma_addr_t dma_handle;

	dma_handle = pci_map_single(pdev, skb->data, buf_len,
				    PCI_DMA_FROMDEVICE);
	if (pci_dma_mapping_error(pdev, dma_handle))
		return -EIO;
	if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
		goto tlv_put_failure;
	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
		goto tlv_put_failure;
	return 0;

tlv_put_failure:
	pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
	desc_info->tlv_size = 0;
	return -EMSGSIZE;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 103 79.84% 2 40.00%
scott feldman scott feldman 23 17.83% 2 40.00%
simon horman simon horman 3 2.33% 1 20.00%
Total 129 100.00% 5 100.00%



static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port)
{
	return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 22 88.00% 1 50.00%
scott feldman scott feldman 3 12.00% 1 50.00%
Total 25 100.00% 2 100.00%



static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port *rocker_port,
					struct rocker_desc_info *desc_info)
{
	struct net_device *dev = rocker_port->dev;
	struct sk_buff *skb;
	size_t buf_len = rocker_port_rx_buf_len(rocker_port);
	int err;

	/* Ensure that hw will see tlv_size zero in case of an error.
         * That tells hw to use another descriptor.
         */
	rocker_desc_cookie_ptr_set(desc_info, NULL);
	desc_info->tlv_size = 0;

	skb = netdev_alloc_skb_ip_align(dev, buf_len);
	if (!skb)
		return -ENOMEM;
	err = rocker_dma_rx_ring_skb_map(rocker_port, desc_info, skb, buf_len);
	if (err) {
		dev_kfree_skb_any(skb);
		return err;
	}
	rocker_desc_cookie_ptr_set(desc_info, skb);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 56 50.45% 2 40.00%
jiri pirko jiri pirko 54 48.65% 2 40.00%
simon horman simon horman 1 0.90% 1 20.00%
Total 111 100.00% 5 100.00%



static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker,
					 const struct rocker_tlv **attrs)
{
	struct pci_dev *pdev = rocker->pdev;
	dma_addr_t dma_handle;
	size_t len;

	if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
	    !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
		return;
	dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
	len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
	pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 68 85.00% 1 50.00%
scott feldman scott feldman 12 15.00% 1 50.00%
Total 80 100.00% 2 100.00%



static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker,
					const struct rocker_desc_info *desc_info)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
	struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);

	if (!skb)
		return;
	rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
	rocker_dma_rx_ring_skb_unmap(rocker, attrs);
	dev_kfree_skb_any(skb);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 51 77.27% 1 33.33%
scott feldman scott feldman 14 21.21% 1 33.33%
simon horman simon horman 1 1.52% 1 33.33%
Total 66 100.00% 3 100.00%



static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port *rocker_port)
{
	const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
	const struct rocker *rocker = rocker_port->rocker;
	int i;
	int err;

	for (i = 0; i < rx_ring->size; i++) {
		err = rocker_dma_rx_ring_skb_alloc(rocker_port,
						   &rx_ring->desc_info[i]);
		if (err)
			goto rollback;
	}
	return 0;

rollback:
	for (i--; i >= 0; i--)
		rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 81 72.97% 1 33.33%
scott feldman scott feldman 30 27.03% 2 66.67%
Total 111 100.00% 3 100.00%



static void rocker_dma_rx_ring_skbs_free(const struct rocker_port *rocker_port)
{
	const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
	const struct rocker *rocker = rocker_port->rocker;
	int i;

	for (i = 0; i < rx_ring->size; i++)
		rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 36 56.25% 1 33.33%
scott feldman scott feldman 26 40.62% 1 33.33%
ying xue ying xue 2 3.12% 1 33.33%
Total 64 100.00% 3 100.00%



static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
{
	struct rocker *rocker = rocker_port->rocker;
	int err;

	err = rocker_dma_ring_create(rocker,
				     ROCKER_DMA_TX(rocker_port->port_number),
				     ROCKER_DMA_TX_DEFAULT_SIZE,
				     &rocker_port->tx_ring);
	if (err) {
		netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
		return err;
	}

	err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
					 PCI_DMA_TODEVICE,
					 ROCKER_DMA_TX_DESC_SIZE);
	if (err) {
		netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
		goto err_dma_tx_ring_bufs_alloc;
	}

	err = rocker_dma_ring_create(rocker,
				     ROCKER_DMA_RX(rocker_port->port_number),
				     ROCKER_DMA_RX_DEFAULT_SIZE,
				     &rocker_port->rx_ring);
	if (err) {
		netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
		goto err_dma_rx_ring_create;
	}

	err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
					 PCI_DMA_BIDIRECTIONAL,
					 ROCKER_DMA_RX_DESC_SIZE);
	if (err) {
		netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
		goto err_dma_rx_ring_bufs_alloc;
	}

	err = rocker_dma_rx_ring_skbs_alloc(rocker_port);
	if (err) {
		netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
		goto err_dma_rx_ring_skbs_alloc;
	}
	rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);

	return 0;

err_dma_rx_ring_skbs_alloc:
	rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
				  PCI_DMA_BIDIRECTIONAL);
err_dma_rx_ring_bufs_alloc:
	rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
err_dma_rx_ring_create:
	rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
				  PCI_DMA_TODEVICE);
err_dma_tx_ring_bufs_alloc:
	rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 160 61.07% 2 28.57%
scott feldman scott feldman 101 38.55% 4 57.14%
simon horman simon horman 1 0.38% 1 14.29%
Total 262 100.00% 7 100.00%



static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
{
	struct rocker *rocker = rocker_port->rocker;

	rocker_dma_rx_ring_skbs_free(rocker_port);
	rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
				  PCI_DMA_BIDIRECTIONAL);
	rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
	rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
				  PCI_DMA_TODEVICE);
	rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 37 53.62% 3 75.00%
jiri pirko jiri pirko 32 46.38% 1 25.00%
Total 69 100.00% 4 100.00%



static void rocker_port_set_enable(const struct rocker_port *rocker_port,
				   bool enable)
{
	u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);

	if (enable)
		val |= 1ULL << rocker_port->pport;
	else
		val &= ~(1ULL << rocker_port->pport);
	rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 47 75.81% 1 25.00%
scott feldman scott feldman 15 24.19% 3 75.00%
Total 62 100.00% 4 100.00%

/********************************
 * Interrupt handler and helpers
 ********************************/



static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
{
	struct rocker *rocker = dev_id;
	const struct rocker_desc_info *desc_info;
	struct rocker_wait *wait;
	u32 credits = 0;

	spin_lock(&rocker->cmd_ring_lock);
	while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
		wait = rocker_desc_cookie_ptr_get(desc_info);
		if (wait->nowait) {
			rocker_desc_gen_clear(desc_info);
		} else {
			rocker_wait_wake_up(wait);
		}
		credits++;
	}
	spin_unlock(&rocker->cmd_ring_lock);
	rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);

	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 73 64.04% 1 50.00%
scott feldman scott feldman 41 35.96% 1 50.00%
Total 114 100.00% 2 100.00%



static void rocker_port_link_up(const struct rocker_port *rocker_port)
{
	netif_carrier_on(rocker_port->dev);
	netdev_info(rocker_port->dev, "Link is up\n");
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 20 71.43% 1 50.00%
scott feldman scott feldman 8 28.57% 1 50.00%
Total 28 100.00% 2 100.00%



static void rocker_port_link_down(const struct rocker_port *rocker_port)
{
	netif_carrier_off(rocker_port->dev);
	netdev_info(rocker_port->dev, "Link is down\n");
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 16 57.14% 1 50.00%
scott feldman scott feldman 12 42.86% 1 50.00%
Total 28 100.00% 2 100.00%



static int rocker_event_link_change(const struct rocker *rocker,
				    const struct rocker_tlv *info)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
	unsigned int port_number;
	bool link_up;
	struct rocker_port *rocker_port;

	rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
	if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
	    !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
		return -EIO;
	port_number =
		rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
	link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);

	if (port_number >= rocker->port_count)
		return -EINVAL;

	rocker_port = rocker->ports[port_number];
	if (netif_carrier_ok(rocker_port->dev) != link_up) {
		if (link_up)
			rocker_port_link_up(rocker_port);
		else
			rocker_port_link_down(rocker_port);
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 116 81.69% 1 33.33%
scott feldman scott feldman 23 16.20% 1 33.33%
simon horman simon horman 3 2.11% 1 33.33%
Total 142 100.00% 3 100.00%

static int rocker_world_port_ev_mac_vlan_seen(struct rocker_port *rocker_port,
					      const unsigned char *addr,
					      __be16 vlan_id);



static int rocker_event_mac_vlan_seen(const struct rocker *rocker,
				      const struct rocker_tlv *info)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
	unsigned int port_number;
	struct rocker_port *rocker_port;
	const unsigned char *addr;
	__be16 vlan_id;

	rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
	if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
	    !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
	    !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
		return -EIO;
	port_number =
		rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
	addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
	vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);

	if (port_number >= rocker->port_count)
		return -EINVAL;

	rocker_port = rocker->ports[port_number];
	return rocker_world_port_ev_mac_vlan_seen(rocker_port, addr, vlan_id);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 109 76.22% 1 33.33%
scott feldman scott feldman 32 22.38% 1 33.33%
simon horman simon horman 2 1.40% 1 33.33%
Total 143 100.00% 3 100.00%



static int rocker_event_process(const struct rocker *rocker,
				const struct rocker_desc_info *desc_info)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
	const struct rocker_tlv *info;
	u16 type;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
	if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
	    !attrs[ROCKER_TLV_EVENT_INFO])
		return -EIO;

	type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
	info = attrs[ROCKER_TLV_EVENT_INFO];

	switch (type) {
	case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
		return rocker_event_link_change(rocker, info);
	case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
		return rocker_event_mac_vlan_seen(rocker, info);
	}

	return -EOPNOTSUPP;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 81 71.05% 2 50.00%
scott feldman scott feldman 32 28.07% 1 25.00%
simon horman simon horman 1 0.88% 1 25.00%
Total 114 100.00% 4 100.00%



static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
{
	struct rocker *rocker = dev_id;
	const struct pci_dev *pdev = rocker->pdev;
	const struct rocker_desc_info *desc_info;
	u32 credits = 0;
	int err;

	while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
		err = rocker_desc_err(desc_info);
		if (err) {
			dev_err(&pdev->dev, "event desc received with err %d\n",
				err);
		} else {
			err = rocker_event_process(rocker, desc_info);
			if (err)
				dev_err(&pdev->dev, "event processing failed with err %d\n",
					err);
		}
		rocker_desc_gen_clear(desc_info);
		rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
		credits++;
	}
	rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);

	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 93 62.84% 2 40.00%
scott feldman scott feldman 54 36.49% 2 40.00%
simon horman simon horman 1 0.68% 1 20.00%
Total 148 100.00% 5 100.00%



static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
{
	struct rocker_port *rocker_port = dev_id;

	napi_schedule(&rocker_port->napi_tx);
	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 16 51.61% 1 50.00%
scott feldman scott feldman 15 48.39% 1 50.00%
Total 31 100.00% 2 100.00%



static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
{
	struct rocker_port *rocker_port = dev_id;

	napi_schedule(&rocker_port->napi_rx);
	return IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 17 54.84% 1 50.00%
scott feldman scott feldman 14 45.16% 1 50.00%
Total 31 100.00% 2 100.00%

/********************
 * Command interface
 ********************/



int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
		    rocker_cmd_prep_cb_t prepare, void *prepare_priv,
		    rocker_cmd_proc_cb_t process, void *process_priv)
{
	struct rocker *rocker = rocker_port->rocker;
	struct rocker_desc_info *desc_info;
	struct rocker_wait *wait;
	unsigned long lock_flags;
	int err;

	spin_lock_irqsave(&rocker->cmd_ring_lock, lock_flags);

	desc_info = rocker_desc_head_get(&rocker->cmd_ring);
	if (!desc_info) {
		spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
		return -EAGAIN;
	}

	wait = rocker_desc_cookie_ptr_get(desc_info);
	rocker_wait_init(wait);
	wait->nowait = nowait;

	err = prepare(rocker_port, desc_info, prepare_priv);
	if (err) {
		spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
		return err;
	}

	rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);

	spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);

	if (nowait)
		return 0;

	if (!rocker_wait_event_timeout(wait, HZ / 10))
		return -EIO;

	err = rocker_desc_err(desc_info);
	if (err)
		return err;

	if (process)
		err = process(rocker_port, desc_info, process_priv);

	rocker_desc_gen_clear(desc_info);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 131 58.48% 2 40.00%
scott feldman scott feldman 93 41.52% 3 60.00%
Total 224 100.00% 5 100.00%


static int

rocker_cmd_get_port_settings_prep(const struct rocker_port *rocker_port,
				  struct rocker_desc_info *desc_info,
				  void *priv)
{
	struct rocker_tlv *cmd_info;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
		return -EMSGSIZE;
	cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_info)
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;
	rocker_tlv_nest_end(desc_info, cmd_info);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 57 66.28% 2 50.00%
scott feldman scott feldman 29 33.72% 2 50.00%
Total 86 100.00% 4 100.00%


static int

rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port *rocker_port,
					  const struct rocker_desc_info *desc_info,
					  void *priv)
{
	struct ethtool_cmd *ecmd = priv;
	const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
	const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
	u32 speed;
	u8 duplex;
	u8 autoneg;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
	if (!attrs[ROCKER_TLV_CMD_INFO])
		return -EIO;

	rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
				attrs[ROCKER_TLV_CMD_INFO]);
	if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
	    !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
	    !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
		return -EIO;

	speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
	duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
	autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);

	ecmd->transceiver = XCVR_INTERNAL;
	ecmd->supported = SUPPORTED_TP;
	ecmd->phy_address = 0xff;
	ecmd->port = PORT_TP;
	ethtool_cmd_speed_set(ecmd, speed);
	ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
	ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 131 65.17% 2 33.33%
scott feldman scott feldman 70 34.83% 4 66.67%
Total 201 100.00% 6 100.00%


static int

rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port *rocker_port,
					  const struct rocker_desc_info *desc_info,
					  void *priv)
{
	unsigned char *macaddr = priv;
	const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
	const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
	const struct rocker_tlv *attr;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
	if (!attrs[ROCKER_TLV_CMD_INFO])
		return -EIO;

	rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
				attrs[ROCKER_TLV_CMD_INFO]);
	attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
	if (!attr)
		return -EIO;

	if (rocker_tlv_len(attr) != ETH_ALEN)
		return -EINVAL;

	ether_addr_copy(macaddr, rocker_tlv_data(attr));
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 85 64.39% 3 37.50%
scott feldman scott feldman 44 33.33% 4 50.00%
simon horman simon horman 3 2.27% 1 12.50%
Total 132 100.00% 8 100.00%


static int

rocker_cmd_get_port_settings_mode_proc(const struct rocker_port *rocker_port,
				       const struct rocker_desc_info *desc_info,
				       void *priv)
{
	u8 *p_mode = priv;
	const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
	const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
	const struct rocker_tlv *attr;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
	if (!attrs[ROCKER_TLV_CMD_INFO])
		return -EIO;

	rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
				attrs[ROCKER_TLV_CMD_INFO]);
	attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MODE];
	if (!attr)
		return -EIO;

	*p_mode = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MODE]);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 101 84.87% 2 50.00%
scott feldman scott feldman 18 15.13% 2 50.00%
Total 119 100.00% 4 100.00%


struct port_name {
	
char *buf;
	
size_t len;
};


static int

rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port *rocker_port,
					    const struct rocker_desc_info *desc_info,
					    void *priv)
{
	const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
	const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
	struct port_name *name = priv;
	const struct rocker_tlv *attr;
	size_t i, j, len;
	const char *str;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
	if (!attrs[ROCKER_TLV_CMD_INFO])
		return -EIO;

	rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
				attrs[ROCKER_TLV_CMD_INFO]);
	attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
	if (!attr)
		return -EIO;

	len = min_t(size_t, rocker_tlv_len(attr), name->len);
	str = rocker_tlv_data(attr);

	/* make sure name only contains alphanumeric characters */
	for (i = j = 0; i < len; ++i) {
		if (isalnum(str[i])) {
			name->buf[j] = str[i];
			j++;
		}
	}

	if (j == 0)
		return -EIO;

	name->buf[j] = '\0';

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 166 79.81% 3 37.50%
scott feldman scott feldman 41 19.71% 4 50.00%
simon horman simon horman 1 0.48% 1 12.50%
Total 208 100.00% 8 100.00%


static int

rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port *rocker_port,
					  struct rocker_desc_info *desc_info,
					  void *priv)
{
	struct ethtool_cmd *ecmd = priv;
	struct rocker_tlv *cmd_info;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
		return -EMSGSIZE;
	cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_info)
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
			       ethtool_cmd_speed(ecmd)))
		return -EMSGSIZE;
	if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
			      ecmd->duplex))
		return -EMSGSIZE;
	if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
			      ecmd->autoneg))
		return -EMSGSIZE;
	rocker_tlv_nest_end(desc_info, cmd_info);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 98 67.59% 1 50.00%
scott feldman scott feldman 47 32.41% 1 50.00%
Total 145 100.00% 2 100.00%


static int

rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port *rocker_port,
					  struct rocker_desc_info *desc_info,
					  void *priv)
{
	const unsigned char *macaddr = priv;
	struct rocker_tlv *cmd_info;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
		return -EMSGSIZE;
	cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_info)
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;
	if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
			   ETH_ALEN, macaddr))
		return -EMSGSIZE;
	rocker_tlv_nest_end(desc_info, cmd_info);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 84 75.68% 3 42.86%
scott feldman scott feldman 27 24.32% 4 57.14%
Total 111 100.00% 7 100.00%


static int

rocker_cmd_set_port_settings_mtu_prep(const struct rocker_port *rocker_port,
				      struct rocker_desc_info *desc_info,
				      void *priv)
{
	int mtu = *(int *)priv;
	struct rocker_tlv *cmd_info;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
		return -EMSGSIZE;
	cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_info)
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;
	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MTU,
			       mtu))
		return -EMSGSIZE;
	rocker_tlv_nest_end(desc_info, cmd_info);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 76 68.47% 3 50.00%
scott feldman scott feldman 35 31.53% 3 50.00%
Total 111 100.00% 6 100.00%


static int

rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port,
				  struct rocker_desc_info *desc_info,
				  void *priv)
{
	bool learning = *(bool *)priv;
	struct rocker_tlv *cmd_info;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
		return -EMSGSIZE;
	cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_info)
		return -EMSGSIZE;
	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;
	if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
			      learning))
		return -EMSGSIZE;
	rocker_tlv_nest_end(desc_info, cmd_info);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 87 78.38% 3 37.50%
scott feldman scott feldman 14 12.61% 4 50.00%
simon horman simon horman 10 9.01% 1 12.50%
Total 111 100.00% 8 100.00%



static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
						struct ethtool_cmd *ecmd)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_get_port_settings_prep, NULL,
			       rocker_cmd_get_port_settings_ethtool_proc,
			       ecmd);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 25 78.12% 2 40.00%
scott feldman scott feldman 7 21.88% 3 60.00%
Total 32 100.00% 5 100.00%



static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
						unsigned char *macaddr)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_get_port_settings_prep, NULL,
			       rocker_cmd_get_port_settings_macaddr_proc,
			       macaddr);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 26 81.25% 2 40.00%
scott feldman scott feldman 6 18.75% 3 60.00%
Total 32 100.00% 5 100.00%



static int rocker_cmd_get_port_settings_mode(struct rocker_port *rocker_port,
					     u8 *p_mode)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_get_port_settings_prep, NULL,
			       rocker_cmd_get_port_settings_mode_proc, p_mode);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 23 74.19% 1 25.00%
scott feldman scott feldman 8 25.81% 3 75.00%
Total 31 100.00% 4 100.00%



static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
						struct ethtool_cmd *ecmd)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_set_port_settings_ethtool_prep,
			       ecmd, NULL, NULL);
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 19 59.38% 3 60.00%
jiri pirko jiri pirko 13 40.62% 2 40.00%
Total 32 100.00% 5 100.00%



static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
						unsigned char *macaddr)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_set_port_settings_macaddr_prep,
			       macaddr, NULL, NULL);
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 19 59.38% 3 60.00%
jiri pirko jiri pirko 13 40.62% 2 40.00%
Total 32 100.00% 5 100.00%



static int rocker_cmd_set_port_settings_mtu(struct rocker_port *rocker_port,
					    int mtu)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_set_port_settings_mtu_prep,
			       &mtu, NULL, NULL);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 23 74.19% 1 50.00%
scott feldman scott feldman 8 25.81% 1 50.00%
Total 31 100.00% 2 100.00%



int rocker_port_set_learning(struct rocker_port *rocker_port,
			     bool learning)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_set_port_learning_prep,
			       &learning, NULL, NULL);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 26 86.67% 2 50.00%
scott feldman scott feldman 4 13.33% 2 50.00%
Total 30 100.00% 4 100.00%

/**********************
 * Worlds manipulation
 **********************/


static struct rocker_world_ops *rocker_world_ops[] = {
	&rocker_ofdpa_ops,
};


#define ROCKER_WORLD_OPS_LEN ARRAY_SIZE(rocker_world_ops)



static struct rocker_world_ops *rocker_world_ops_find(u8 mode)
{
	int i;

	for (i = 0; i < ROCKER_WORLD_OPS_LEN; i++)
		if (rocker_world_ops[i]->mode == mode)
			return rocker_world_ops[i];
	return NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 40 85.11% 2 50.00%
scott feldman scott feldman 7 14.89% 2 50.00%
Total 47 100.00% 4 100.00%



static int rocker_world_init(struct rocker *rocker, u8 mode)
{
	struct rocker_world_ops *wops;
	int err;

	wops = rocker_world_ops_find(mode);
	if (!wops) {
		dev_err(&rocker->pdev->dev, "port mode \"%d\" is not supported\n",
			mode);
		return -EINVAL;
	}
	rocker->wops = wops;
	rocker->wpriv = kzalloc(wops->priv_size, GFP_KERNEL);
	if (!rocker->wpriv)
		return -ENOMEM;
	if (!wops->init)
		return 0;
	err = wops->init(rocker);
	if (err)
		kfree(rocker->wpriv);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 91 77.78% 2 40.00%
scott feldman scott feldman 22 18.80% 2 40.00%
simon horman simon horman 4 3.42% 1 20.00%
Total 117 100.00% 5 100.00%



static void rocker_world_fini(struct rocker *rocker)
{
	struct rocker_world_ops *wops = rocker->wops;

	if (!wops || !wops->fini)
		return;
	wops->fini(rocker);
	kfree(rocker->wpriv);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 34 75.56% 2 50.00%
scott feldman scott feldman 11 24.44% 2 50.00%
Total 45 100.00% 4 100.00%



static int rocker_world_check_init(struct rocker_port *rocker_port)
{
	struct rocker *rocker = rocker_port->rocker;
	u8 mode;
	int err;

	err = rocker_cmd_get_port_settings_mode(rocker_port, &mode);
	if (err) {
		dev_err(&rocker->pdev->dev, "failed to get port mode\n");
		return err;
	}
	if (rocker->wops) {
		if (rocker->wops->mode != mode) {
			dev_err(&rocker->pdev->dev, "hardware has ports in different worlds, which is not supported\n");
			return err;
		}
		return 0;
	}
	return rocker_world_init(rocker, mode);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 55 53.40% 2 40.00%
scott feldman scott feldman 48 46.60% 3 60.00%
Total 103 100.00% 5 100.00%



static int rocker_world_port_pre_init(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;
	int err;

	rocker_port->wpriv = kzalloc(wops->port_priv_size, GFP_KERNEL);
	if (!rocker_port->wpriv)
		return -ENOMEM;
	if (!wops->port_pre_init)
		return 0;
	err = wops->port_pre_init(rocker_port);
	if (err)
		kfree(rocker_port->wpriv);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 51 62.20% 3 75.00%
jiri pirko jiri pirko 31 37.80% 1 25.00%
Total 82 100.00% 4 100.00%



static int rocker_world_port_init(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_init)
		return 0;
	return wops->port_init(rocker_port);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 30 75.00% 2 50.00%
scott feldman scott feldman 10 25.00% 2 50.00%
Total 40 100.00% 4 100.00%



static void rocker_world_port_fini(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_fini)
		return;
	wops->port_fini(rocker_port);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 31 83.78% 2 50.00%
scott feldman scott feldman 6 16.22% 2 50.00%
Total 37 100.00% 4 100.00%



static void rocker_world_port_post_fini(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_post_fini)
		return;
	wops->port_post_fini(rocker_port);
	kfree(rocker_port->wpriv);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 33 75.00% 3 60.00%
scott feldman scott feldman 11 25.00% 2 40.00%
Total 44 100.00% 5 100.00%



static int rocker_world_port_open(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_open)
		return 0;
	return wops->port_open(rocker_port);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 29 72.50% 1 25.00%
scott feldman scott feldman 6 15.00% 2 50.00%
anuradha karuppiah anuradha karuppiah 5 12.50% 1 25.00%
Total 40 100.00% 4 100.00%



static void rocker_world_port_stop(struct rocker_port *rocker_port)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_stop)
		return;
	wops->port_stop(rocker_port);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 29 78.38% 1 50.00%
scott feldman scott feldman 8 21.62% 1 50.00%
Total 37 100.00% 2 100.00%



static int rocker_world_port_attr_stp_state_set(struct rocker_port *rocker_port,
						u8 state,
						struct switchdev_trans *trans)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_attr_stp_state_set)
		return -EOPNOTSUPP;
	return wops->port_attr_stp_state_set(rocker_port, state, trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 41 77.36% 3 60.00%
scott feldman scott feldman 12 22.64% 2 40.00%
Total 53 100.00% 5 100.00%


static int

rocker_world_port_attr_bridge_flags_set(struct rocker_port *rocker_port,
					unsigned long brport_flags,
					struct switchdev_trans *trans)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_attr_bridge_flags_set)
		return -EOPNOTSUPP;
	return wops->port_attr_bridge_flags_set(rocker_port, brport_flags,
						trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 41 75.93% 3 60.00%
scott feldman scott feldman 13 24.07% 2 40.00%
Total 54 100.00% 5 100.00%


static int

rocker_world_port_attr_bridge_flags_get(const struct rocker_port *rocker_port,
					unsigned long *p_brport_flags)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_attr_bridge_flags_get)
		return -EOPNOTSUPP;
	return wops->port_attr_bridge_flags_get(rocker_port, p_brport_flags);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 39 79.59% 2 40.00%
scott feldman scott feldman 9 18.37% 2 40.00%
simon horman simon horman 1 2.04% 1 20.00%
Total 49 100.00% 5 100.00%


static int

rocker_world_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port,
					      u32 ageing_time,
					      struct switchdev_trans *trans)

{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_attr_bridge_ageing_time_set)
		return -EOPNOTSUPP;
	return wops->port_attr_bridge_ageing_time_set(rocker_port, ageing_time,
						      trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 49 92.45% 3 60.00%
scott feldman scott feldman 4 7.55% 2 40.00%
Total 53 100.00% 5 100.00%


static int

rocker_world_port_obj_vlan_add(struct rocker_port *rocker_port,
			       const struct switchdev_obj_port_vlan *vlan,
			       struct switchdev_trans *trans)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_vlan_add)
		return -EOPNOTSUPP;
	return wops->port_obj_vlan_add(rocker_port, vlan, trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 42 75.00% 3 75.00%
scott feldman scott feldman 14 25.00% 1 25.00%
Total 56 100.00% 4 100.00%


static int

rocker_world_port_obj_vlan_del(struct rocker_port *rocker_port,
			       const struct switchdev_obj_port_vlan *vlan)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_vlan_del)
		return -EOPNOTSUPP;
	return wops->port_obj_vlan_del(rocker_port, vlan);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 47 95.92% 3 75.00%
scott feldman scott feldman 2 4.08% 1 25.00%
Total 49 100.00% 4 100.00%


static int

rocker_world_port_obj_vlan_dump(const struct rocker_port *rocker_port,
				struct switchdev_obj_port_vlan *vlan,
				switchdev_obj_dump_cb_t *cb)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_vlan_dump)
		return -EOPNOTSUPP;
	return wops->port_obj_vlan_dump(rocker_port, vlan, cb);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 55 100.00% 3 100.00%
Total 55 100.00% 3 100.00%


static int

rocker_world_port_obj_fib4_add(struct rocker_port *rocker_port,
			       const struct switchdev_obj_ipv4_fib *fib4,
			       struct switchdev_trans *trans)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_fib4_add)
		return -EOPNOTSUPP;
	return wops->port_obj_fib4_add(rocker_port, fib4, trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 48 85.71% 3 75.00%
scott feldman scott feldman 8 14.29% 1 25.00%
Total 56 100.00% 4 100.00%


static int

rocker_world_port_obj_fib4_del(struct rocker_port *rocker_port,
			       const struct switchdev_obj_ipv4_fib *fib4)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_fib4_del)
		return -EOPNOTSUPP;
	return wops->port_obj_fib4_del(rocker_port, fib4);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 45 91.84% 4 80.00%
scott feldman scott feldman 4 8.16% 1 20.00%
Total 49 100.00% 5 100.00%


static int

rocker_world_port_obj_fdb_add(struct rocker_port *rocker_port,
			      const struct switchdev_obj_port_fdb *fdb,
			      struct switchdev_trans *trans)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_fdb_add)
		return -EOPNOTSUPP;
	return wops->port_obj_fdb_add(rocker_port, fdb, trans);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 52 92.86% 3 75.00%
scott feldman scott feldman 4 7.14% 1 25.00%
Total 56 100.00% 4 100.00%


static int

rocker_world_port_obj_fdb_del(struct rocker_port *rocker_port,
			      const struct switchdev_obj_port_fdb *fdb)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_fdb_del)
		return -EOPNOTSUPP;
	return wops->port_obj_fdb_del(rocker_port, fdb);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 44 89.80% 3 75.00%
scott feldman scott feldman 5 10.20% 1 25.00%
Total 49 100.00% 4 100.00%


static int

rocker_world_port_obj_fdb_dump(const struct rocker_port *rocker_port,
			       struct switchdev_obj_port_fdb *fdb,
			       switchdev_obj_dump_cb_t *cb)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_obj_fdb_dump)
		return -EOPNOTSUPP;
	return wops->port_obj_fdb_dump(rocker_port, fdb, cb);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 42 76.36% 3 75.00%
scott feldman scott feldman 13 23.64% 1 25.00%
Total 55 100.00% 4 100.00%



static int rocker_world_port_master_linked(struct rocker_port *rocker_port,
					   struct net_device *master)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_master_linked)
		return -EOPNOTSUPP;
	return wops->port_master_linked(rocker_port, master);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 44 91.67% 3 75.00%
scott feldman scott feldman 4 8.33% 1 25.00%
Total 48 100.00% 4 100.00%



static int rocker_world_port_master_unlinked(struct rocker_port *rocker_port,
					     struct net_device *master)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_master_unlinked)
		return -EOPNOTSUPP;
	return wops->port_master_unlinked(rocker_port, master);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 26 54.17% 2 66.67%
scott feldman scott feldman 22 45.83% 1 33.33%
Total 48 100.00% 3 100.00%



static int rocker_world_port_neigh_update(struct rocker_port *rocker_port,
					  struct neighbour *n)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_neigh_update)
		return -EOPNOTSUPP;
	return wops->port_neigh_update(rocker_port, n);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 39 81.25% 2 66.67%
scott feldman scott feldman 9 18.75% 1 33.33%
Total 48 100.00% 3 100.00%



static int rocker_world_port_neigh_destroy(struct rocker_port *rocker_port,
					   struct neighbour *n)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_neigh_destroy)
		return -EOPNOTSUPP;
	return wops->port_neigh_destroy(rocker_port, n);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 32 66.67% 2 66.67%
david ahern david ahern 16 33.33% 1 33.33%
Total 48 100.00% 3 100.00%



static int rocker_world_port_ev_mac_vlan_seen(struct rocker_port *rocker_port,
					      const unsigned char *addr,
					      __be16 vlan_id)
{
	struct rocker_world_ops *wops = rocker_port->rocker->wops;

	if (!wops->port_ev_mac_vlan_seen)
		return -EOPNOTSUPP;
	return wops->port_ev_mac_vlan_seen(rocker_port, addr, vlan_id);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 32 59.26% 2 66.67%
anuradha karuppiah anuradha karuppiah 22 40.74% 1 33.33%
Total 54 100.00% 3 100.00%

/*****************
 * Net device ops
 *****************/



static int rocker_port_open(struct net_device *dev)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	int err;

	err = rocker_port_dma_rings_init(rocker_port);
	if (err)
		return err;

	err = request_irq(rocker_msix_tx_vector(rocker_port),
			  rocker_tx_irq_handler, 0,
			  rocker_driver_name, rocker_port);
	if (err) {
		netdev_err(rocker_port->dev, "cannot assign tx irq\n");
		goto err_request_tx_irq;
	}

	err = request_irq(rocker_msix_rx_vector(rocker_port),
			  rocker_rx_irq_handler, 0,
			  rocker_driver_name, rocker_port);
	if (err) {
		netdev_err(rocker_port->dev, "cannot assign rx irq\n");
		goto err_request_rx_irq;
	}

	err = rocker_world_port_open(rocker_port);
	if (err) {
		netdev_err(rocker_port->dev, "cannot open port in world\n");
		goto err_world_port_open;
	}

	napi_enable(&rocker_port->napi_tx);
	napi_enable(&rocker_port->napi_rx);
	if (!dev->proto_down)
		rocker_port_set_enable(rocker_port, true);
	netif_start_queue(dev);
	return 0;

err_world_port_open:
	free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
err_request_rx_irq:
	free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
err_request_tx_irq:
	rocker_port_dma_rings_fini(rocker_port);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 165 79.71% 3 42.86%
scott feldman scott feldman 42 20.29% 4 57.14%
Total 207 100.00% 7 100.00%



static int rocker_port_stop(struct net_device *dev)
{
	struct rocker_port *rocker_port = netdev_priv(dev);

	netif_stop_queue(dev);
	rocker_port_set_enable(rocker_port, false);
	napi_disable(&rocker_port->napi_rx);
	napi_disable(&rocker_port->napi_tx);
	rocker_world_port_stop(rocker_port);
	free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
	free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
	rocker_port_dma_rings_fini(rocker_port);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 51 62.20% 4 66.67%
scott feldman scott feldman 31 37.80% 2 33.33%
Total 82 100.00% 6 100.00%



static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port,
				       const struct rocker_desc_info *desc_info)
{
	const struct rocker *rocker = rocker_port->rocker;
	struct pci_dev *pdev = rocker->pdev;
	const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
	struct rocker_tlv *attr;
	int rem;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
	if (!attrs[ROCKER_TLV_TX_FRAGS])
		return;
	rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
		const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
		dma_addr_t dma_handle;
		size_t len;

		if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
			continue;
		rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
					attr);
		if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
		    !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
			continue;
		dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
		len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
		pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 136 81.93% 4 44.44%
scott feldman scott feldman 30 18.07% 5 55.56%
Total 166 100.00% 9 100.00%



static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port,
				       struct rocker_desc_info *desc_info,
				       char *buf, size_t buf_len)
{
	const struct rocker *rocker = rocker_port->rocker;
	struct pci_dev *pdev = rocker->pdev;
	dma_addr_t dma_handle;
	struct rocker_tlv *frag;

	dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
	if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
		if (net_ratelimit())
			netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
		return -EIO;
	}
	frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
	if (!frag)
		goto unmap_frag;
	if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
			       dma_handle))
		goto nest_cancel;
	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
			       buf_len))
		goto nest_cancel;
	rocker_tlv_nest_end(desc_info, frag);
	return 0;

nest_cancel:
	rocker_tlv_nest_cancel(desc_info, frag);
unmap_frag:
	pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
	return -EMSGSIZE;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 113 63.84% 2 40.00%
scott feldman scott feldman 45 25.42% 2 40.00%
sridhar samudrala sridhar samudrala 19 10.73% 1 20.00%
Total 177 100.00% 5 100.00%



static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	struct rocker *rocker = rocker_port->rocker;
	struct rocker_desc_info *desc_info;
	struct rocker_tlv *frags;
	int i;
	int err;

	desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
	if (unlikely(!desc_info)) {
		if (net_ratelimit())
			netdev_err(dev, "tx ring full when queue awake\n");
		return NETDEV_TX_BUSY;
	}

	rocker_desc_cookie_ptr_set(desc_info, skb);

	frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
	if (!frags)
		goto out;
	err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
					  skb->data, skb_headlen(skb));
	if (err)
		goto nest_cancel;
	if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX) {
		err = skb_linearize(skb);
		if (err)
			goto unmap_frags;
	}

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

		err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
						  skb_frag_address(frag),
						  skb_frag_size(frag));
		if (err)
			goto unmap_frags;
	}
	rocker_tlv_nest_end(desc_info, frags);

	rocker_desc_gen_clear(desc_info);
	rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);

	desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
	if (!desc_info)
		netif_stop_queue(dev);

	return NETDEV_TX_OK;

unmap_frags:
	rocker_tx_desc_frags_unmap(rocker_port, desc_info);
nest_cancel:
	rocker_tlv_nest_cancel(desc_info, frags);
out:
	dev_kfree_skb(skb);
	dev->stats.tx_dropped++;

	return NETDEV_TX_OK;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 230 75.16% 4 50.00%
scott feldman scott feldman 61 19.93% 3 37.50%
sridhar samudrala sridhar samudrala 15 4.90% 1 12.50%
Total 306 100.00% 8 100.00%



static int rocker_port_set_mac_address(struct net_device *dev, void *p)
{
	struct sockaddr *addr = p;
	struct rocker_port *rocker_port = netdev_priv(dev);
	int err;

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

	err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
	if (err)
		return err;
	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 55 64.71% 2 50.00%
sridhar samudrala sridhar samudrala 26 30.59% 1 25.00%
scott feldman scott feldman 4 4.71% 1 25.00%
Total 85 100.00% 4 100.00%



static int rocker_port_change_mtu(struct net_device *dev, int new_mtu)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	int running = netif_running(dev);
	int err;


#define ROCKER_PORT_MIN_MTU	68

#define ROCKER_PORT_MAX_MTU	9000

	if (new_mtu < ROCKER_PORT_MIN_MTU || new_mtu > ROCKER_PORT_MAX_MTU)
		return -EINVAL;

	if (running)
		rocker_port_stop(dev);

	netdev_info(dev, "MTU change from %d to %d\n", dev->mtu, new_mtu);
	dev->mtu = new_mtu;

	err = rocker_cmd_set_port_settings_mtu(rocker_port, new_mtu);
	if (err)
		return err;

	if (running)
		err = rocker_port_open(dev);

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 83 72.17% 4 50.00%
scott feldman scott feldman 31 26.96% 3 37.50%
sridhar samudrala sridhar samudrala 1 0.87% 1 12.50%
Total 115 100.00% 8 100.00%



static int rocker_port_get_phys_port_name(struct net_device *dev,
					  char *buf, size_t len)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	struct port_name name = { .buf = buf, .len = len };
	int err;

	err = rocker_cmd_exec(rocker_port, false,
			      rocker_cmd_get_port_settings_prep, NULL,
			      rocker_cmd_get_port_settings_phys_name_proc,
			      &name);

	return err ? -EOPNOTSUPP : 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 67 91.78% 3 75.00%
sridhar samudrala sridhar samudrala 6 8.22% 1 25.00%
Total 73 100.00% 4 100.00%



static int rocker_port_change_proto_down(struct net_device *dev,
					 bool proto_down)
{
	struct rocker_port *rocker_port = netdev_priv(dev);

	if (rocker_port->dev->flags & IFF_UP)
		rocker_port_set_enable(rocker_port, !proto_down);
	rocker_port->dev->proto_down = proto_down;
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
sridhar samudrala sridhar samudrala 25 47.17% 1 20.00%
jiri pirko jiri pirko 24 45.28% 2 40.00%
vivien didelot vivien didelot 4 7.55% 2 40.00%
Total 53 100.00% 5 100.00%



static void rocker_port_neigh_destroy(struct neighbour *n)
{
	struct rocker_port *rocker_port = netdev_priv(n->dev);
	int err;

	err = rocker_world_port_neigh_destroy(rocker_port, n);
	if (err)
		netdev_warn(rocker_port->dev, "failed to handle neigh destroy (err %d)\n",
			    err);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 30 60.00% 1 33.33%
scott feldman scott feldman 17 34.00% 1 33.33%
vivien didelot vivien didelot 3 6.00% 1 33.33%
Total 50 100.00% 3 100.00%


static const struct net_device_ops rocker_port_netdev_ops = {
	.ndo_open			= rocker_port_open,
	.ndo_stop			= rocker_port_stop,
	.ndo_start_xmit			= rocker_port_xmit,
	.ndo_set_mac_address		= rocker_port_set_mac_address,
	.ndo_change_mtu			= rocker_port_change_mtu,
	.ndo_bridge_getlink		= switchdev_port_bridge_getlink,
	.ndo_bridge_setlink		= switchdev_port_bridge_setlink,
	.ndo_bridge_dellink		= switchdev_port_bridge_dellink,
	.ndo_fdb_add			= switchdev_port_fdb_add,
	.ndo_fdb_del			= switchdev_port_fdb_del,
	.ndo_fdb_dump			= switchdev_port_fdb_dump,
	.ndo_get_phys_port_name		= rocker_port_get_phys_port_name,
	.ndo_change_proto_down		= rocker_port_change_proto_down,
	.ndo_neigh_destroy		= rocker_port_neigh_destroy,
};

/********************
 * swdev interface
 ********************/



static int rocker_port_attr_get(struct net_device *dev,
				struct switchdev_attr *attr)
{
	const struct rocker_port *rocker_port = netdev_priv(dev);
	const struct rocker *rocker = rocker_port->rocker;
	int err = 0;

	switch (attr->id) {
	case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
		attr->u.ppid.id_len = sizeof(rocker->hw.id);
		memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len);
		break;
	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
		err = rocker_world_port_attr_bridge_flags_get(rocker_port,
							      &attr->u.brport_flags);
		break;
	default:
		return -EOPNOTSUPP;
	}

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 74 59.68% 5 45.45%
sridhar samudrala sridhar samudrala 35 28.23% 1 9.09%
scott feldman scott feldman 12 9.68% 3 27.27%
vivien didelot vivien didelot 2 1.61% 1 9.09%
simon horman simon horman 1 0.81% 1 9.09%
Total 124 100.00% 11 100.00%



static int rocker_port_attr_set(struct net_device *dev,
				const struct switchdev_attr *attr,
				struct switchdev_trans *trans)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	int err = 0;

	switch (attr->id) {
	case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
		err = rocker_world_port_attr_stp_state_set(rocker_port,
							   attr->u.stp_state,
							   trans);
		break;
	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
		err = rocker_world_port_attr_bridge_flags_set(rocker_port,
							      attr->u.brport_flags,
							      trans);
		break;
	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
		err = rocker_world_port_attr_bridge_ageing_time_set(rocker_port,
								    attr->u.ageing_time,
								    trans);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 112 100.00% 2 100.00%
Total 112 100.00% 2 100.00%



static int rocker_port_obj_add(struct net_device *dev,
			       const struct switchdev_obj *obj,
			       struct switchdev_trans *trans)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	int err = 0;

	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
		err = rocker_world_port_obj_vlan_add(rocker_port,
						     SWITCHDEV_OBJ_PORT_VLAN(obj),
						     trans);
		break;
	case SWITCHDEV_OBJ_ID_IPV4_FIB:
		err = rocker_world_port_obj_fib4_add(rocker_port,
						     SWITCHDEV_OBJ_IPV4_FIB(obj),
						     trans);
		break;
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = rocker_world_port_obj_fdb_add(rocker_port,
						    SWITCHDEV_OBJ_PORT_FDB(obj),
						    trans);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 109 100.00% 2 100.00%
Total 109 100.00% 2 100.00%



static int rocker_port_obj_del(struct net_device *dev,
			       const struct switchdev_obj *obj)
{
	struct rocker_port *rocker_port = netdev_priv(dev);
	int err = 0;

	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
		err = rocker_world_port_obj_vlan_del(rocker_port,
						     SWITCHDEV_OBJ_PORT_VLAN(obj));
		break;
	case SWITCHDEV_OBJ_ID_IPV4_FIB:
		err = rocker_world_port_obj_fib4_del(rocker_port,
						     SWITCHDEV_OBJ_IPV4_FIB(obj));
		break;
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = rocker_world_port_obj_fdb_del(rocker_port,
						    SWITCHDEV_OBJ_PORT_FDB(obj));
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 66 67.35% 1 50.00%
david ahern david ahern 32 32.65% 1 50.00%
Total 98 100.00% 2 100.00%



static int rocker_port_obj_dump(struct net_device *dev,
				struct switchdev_obj *obj,
				switchdev_obj_dump_cb_t *cb)
{
	const struct rocker_port *rocker_port = netdev_priv(dev);
	int err = 0;

	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = rocker_world_port_obj_fdb_dump(rocker_port,
						     SWITCHDEV_OBJ_PORT_FDB(obj),
						     cb);
		break;
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
		err = rocker_world_port_obj_vlan_dump(rocker_port,
						      SWITCHDEV_OBJ_PORT_VLAN(obj),
						      cb);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 68 75.56% 1 50.00%
david ahern david ahern 22 24.44% 1 50.00%
Total 90 100.00% 2 100.00%


static const struct switchdev_ops rocker_port_switchdev_ops = {
	.switchdev_port_attr_get	= rocker_port_attr_get,
	.switchdev_port_attr_set	= rocker_port_attr_set,
	.switchdev_port_obj_add		= rocker_port_obj_add,
	.switchdev_port_obj_del		= rocker_port_obj_del,
	.switchdev_port_obj_dump	= rocker_port_obj_dump,
};

/********************
 * ethtool interface
 ********************/



static int rocker_port_get_settings(struct net_device *dev,
				    struct ethtool_cmd *ecmd)
{
	struct rocker_port *rocker_port = netdev_priv(dev);

	return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 25 73.53% 1 50.00%
david ahern david ahern 9 26.47% 1 50.00%
Total 34 100.00% 2 100.00%



static int rocker_port_set_settings(struct net_device *dev,
				    struct ethtool_cmd *ecmd)
{
	struct rocker_port *rocker_port = netdev_priv(dev);

	return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
}

Contributors
Person Tokens Prop Commits CommitProp
david ahern david ahern 21 61.76% 1 50.00%
jiri pirko jiri pirko 13 38.24% 1 50.00%
Total 34 100.00% 2 100.00%



static void rocker_port_get_drvinfo(struct net_device *dev,
				    struct ethtool_drvinfo *drvinfo)
{
	strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 33 68.75% 1 33.33%
david ahern david ahern 14 29.17% 1 33.33%
scott feldman scott feldman 1 2.08% 1 33.33%
Total 48 100.00% 3 100.00%


static struct rocker_port_stats {
	
char str[ETH_GSTRING_LEN];
	
int type;
} 
rocker_port_stats[] = {
	{ "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS,    },
	{ "rx_bytes",   ROCKER_TLV_CMD_PORT_STATS_RX_BYTES,   },
	{ "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
	{ "rx_errors",  ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS,  },

	{ "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS,    },
	{ "tx_bytes",   ROCKER_TLV_CMD_PORT_STATS_TX_BYTES,   },
	{ "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
	{ "tx_errors",  ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS,  },
};


#define ROCKER_PORT_STATS_LEN  ARRAY_SIZE(rocker_port_stats)



static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
				    u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
			memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 40 54.79% 2 66.67%
david ahern david ahern 33 45.21% 1 33.33%
Total 73 100.00% 3 100.00%


static int

rocker_cmd_get_port_stats_prep(const struct rocker_port *rocker_port,
			       struct rocker_desc_info *desc_info,
			       void *priv)
{
	struct rocker_tlv *cmd_stats;

	if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
			       ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
		return -EMSGSIZE;

	cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
	if (!cmd_stats)
		return -EMSGSIZE;

	if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
			       rocker_port->pport))
		return -EMSGSIZE;

	rocker_tlv_nest_end(desc_info, cmd_stats);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 77 89.53% 2 50.00%
david ahern david ahern 8 9.30% 1 25.00%
simon horman simon horman 1 1.16% 1 25.00%
Total 86 100.00% 4 100.00%


static int

rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port,
				       const struct rocker_desc_info *desc_info,
				       void *priv)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
	const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
	const struct rocker_tlv *pattr;
	u32 pport;
	u64 *data = priv;
	int i;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);

	if (!attrs[ROCKER_TLV_CMD_INFO])
		return -EIO;

	rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
				attrs[ROCKER_TLV_CMD_INFO]);

	if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
		return -EIO;

	pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
	if (pport != rocker_port->pport)
		return -EIO;

	for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
		pattr = stats_attrs[rocker_port_stats[i].type];
		if (!pattr)
			continue;

		data[i] = rocker_tlv_get_u64(pattr);
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 163 91.57% 2 50.00%
scott feldman scott feldman 13 7.30% 1 25.00%
simon horman simon horman 2 1.12% 1 25.00%
Total 178 100.00% 4 100.00%



static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
					     void *priv)
{
	return rocker_cmd_exec(rocker_port, false,
			       rocker_cmd_get_port_stats_prep, NULL,
			       rocker_cmd_get_port_stats_ethtool_proc,
			       priv);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 31 100.00% 2 100.00%
Total 31 100.00% 2 100.00%



static void rocker_port_get_stats(struct net_device *dev,
				  struct ethtool_stats *stats, u64 *data)
{
	struct rocker_port *rocker_port = netdev_priv(dev);

	if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
		int i;

		for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
			data[i] = 0;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 65 94.20% 2 66.67%
scott feldman scott feldman 4 5.80% 1 33.33%
Total 69 100.00% 3 100.00%



static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return ROCKER_PORT_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 31 100.00% 2 100.00%
Total 31 100.00% 2 100.00%


static const struct ethtool_ops rocker_port_ethtool_ops = {
	.get_settings		= rocker_port_get_settings,
	.set_settings		= rocker_port_set_settings,
	.get_drvinfo		= rocker_port_get_drvinfo,
	.get_link		= ethtool_op_get_link,
	.get_strings		= rocker_port_get_strings,
	.get_ethtool_stats	= rocker_port_get_stats,
	.get_sset_count		= rocker_port_get_sset_count,
};

/*****************
 * NAPI interface
 *****************/



static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
{
	return container_of(napi, struct rocker_port, napi_tx);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 24 100.00% 2 100.00%
Total 24 100.00% 2 100.00%



static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
{
	struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
	const struct rocker *rocker = rocker_port->rocker;
	const struct rocker_desc_info *desc_info;
	u32 credits = 0;
	int err;

	/* Cleanup tx descriptors */
	while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
		struct sk_buff *skb;

		err = rocker_desc_err(desc_info);
		if (err && net_ratelimit())
			netdev_err(rocker_port->dev, "tx desc received with err %d\n",
				   err);
		rocker_tx_desc_frags_unmap(rocker_port, desc_info);

		skb = rocker_desc_cookie_ptr_get(desc_info);
		if (err == 0) {
			rocker_port->dev->stats.tx_packets++;
			rocker_port->dev->stats.tx_bytes += skb->len;
		} else {
			rocker_port->dev->stats.tx_errors++;
		}

		dev_kfree_skb_any(skb);
		credits++;
	}

	if (credits && netif_queue_stopped(rocker_port->dev))
		netif_wake_queue(rocker_port->dev);

	napi_complete(napi);
	rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 183 93.37% 2 50.00%
david ahern david ahern 12 6.12% 1 25.00%
simon horman simon horman 1 0.51% 1 25.00%
Total 196 100.00% 4 100.00%



static int rocker_port_rx_proc(const struct rocker *rocker,
			       const struct rocker_port *rocker_port,
			       struct rocker_desc_info *desc_info)
{
	const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
	struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
	size_t rx_len;
	u16 rx_flags = 0;

	if (!skb)
		return -ENOENT;

	rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
	if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
		return -EINVAL;
	if (attrs[ROCKER_TLV_RX_FLAGS])
		rx_flags = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FLAGS]);

	rocker_dma_rx_ring_skb_unmap(rocker, attrs);

	rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
	skb_put(skb, rx_len);
	skb->protocol = eth_type_trans(skb, rocker_port->dev);

	if (rx_flags & ROCKER_RX_FLAGS_FWD_OFFLOAD)
		skb->offload_fwd_mark = rocker_port->dev->offload_fwd_mark;

	rocker_port->dev->stats.rx_packets++;
	rocker_port->dev->stats.rx_bytes += skb->len;

	netif_receive_skb(skb);

	return rocker_dma_rx_ring_skb_alloc(rocker_port, desc_info);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 165 88.71% 3 42.86%
scott feldman scott feldman 15 8.06% 3 42.86%
ido schimmel ido schimmel 6 3.23% 1 14.29%
Total 186 100.00% 7 100.00%



static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
{
	return container_of(napi, struct rocker_port, napi_rx);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 24 100.00% 2 100.00%
Total 24 100.00% 2 100.00%



static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
{
	struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
	const struct rocker *rocker = rocker_port->rocker;
	struct rocker_desc_info *desc_info;
	u32 credits = 0;
	int err;

	/* Process rx descriptors */
	while (credits < budget &&
	       (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
		err = rocker_desc_err(desc_info);
		if (err) {
			if (net_ratelimit())
				netdev_err(rocker_port->dev, "rx desc received with err %d\n",
					   err);
		} else {
			err = rocker_port_rx_proc(rocker, rocker_port,
						  desc_info);
			if (err && net_ratelimit())
				netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
					   err);
		}
		if (err)
			rocker_port->dev->stats.rx_errors++;

		rocker_desc_gen_clear(desc_info);
		rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
		credits++;
	}

	if (credits < budget)
		napi_complete(napi);

	rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);

	return credits;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 175 93.09% 2 40.00%
simon horman simon horman 10 5.32% 2 40.00%
scott feldman scott feldman 3 1.60% 1 20.00%
Total 188 100.00% 5 100.00%

/*****************
 * PCI driver ops
 *****************/



static void rocker_carrier_init(const struct rocker_port *rocker_port)
{
	const struct rocker *rocker = rocker_port->rocker;
	u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
	bool link_up;

	link_up = link_status & (1 << rocker_port->pport);
	if (link_up)
		netif_carrier_on(rocker_port->dev);
	else
		netif_carrier_off(rocker_port->dev);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 64 96.97% 3 75.00%
scott feldman scott feldman 2 3.03% 1 25.00%
Total 66 100.00% 4 100.00%



static void rocker_remove_ports(struct rocker *rocker)
{
	struct rocker_port *rocker_port;
	int i;

	for (i = 0; i < rocker->port_count; i++) {
		rocker_port = rocker->ports[i];
		if (!rocker_port)
			continue;
		rocker_world_port_fini(rocker_port);
		unregister_netdev(rocker_port->dev);
		rocker_world_port_post_fini(rocker_port);
		free_netdev(rocker_port->dev);
	}
	rocker_world_fini(rocker);
	kfree(rocker->ports);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 85 97.70% 3 75.00%
scott feldman scott feldman 2 2.30% 1 25.00%
Total 87 100.00% 4 100.00%



static void rocker_port_dev_addr_init(struct rocker_port *rocker_port)
{
	const struct rocker *rocker = rocker_port->rocker;
	const struct pci_dev *pdev = rocker->pdev;
	int err;

	err = rocker_cmd_get_port_settings_macaddr(rocker_port,
						   rocker_port->dev->dev_addr);
	if (err) {
		dev_warn(&pdev->dev, "failed to get mac address, using random\n");
		eth_hw_addr_random(rocker_port->dev);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 60 85.71% 4 66.67%
scott feldman scott feldman 10 14.29% 2 33.33%
Total 70 100.00% 6 100.00%



static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
{
	const struct pci_dev *pdev = rocker->pdev;
	struct rocker_port *rocker_port;
	struct net_device *dev;
	int err;

	dev = alloc_etherdev(sizeof(struct rocker_port));
	if (!dev)
		return -ENOMEM;
	rocker_port = netdev_priv(dev);
	rocker_port->dev = dev;
	rocker_port->rocker = rocker;
	rocker_port->port_number = port_number;
	rocker_port->pport = port_number + 1;

	err = rocker_world_check_init(rocker_port);
	if (err) {
		dev_err(&pdev->dev, "world init failed\n");
		goto err_world_check_init;
	}

	rocker_port_dev_addr_init(rocker_port);
	dev->netdev_ops = &rocker_port_netdev_ops;
	dev->ethtool_ops = &rocker_port_ethtool_ops;
	dev->switchdev_ops = &rocker_port_switchdev_ops;
	netif_tx_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
			  NAPI_POLL_WEIGHT);
	netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
		       NAPI_POLL_WEIGHT);
	rocker_carrier_init(rocker_port);

	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_SG;

	err = rocker_world_port_pre_init(rocker_port);
	if (err) {
		dev_err(&pdev->dev, "port world pre-init failed\n");
		goto err_world_port_pre_init;
	}
	err = register_netdev(dev);
	if (err) {
		dev_err(&pdev->dev, "register_netdev failed\n");
		goto err_register_netdev;
	}
	rocker->ports[port_number] = rocker_port;

	err = rocker_world_port_init(rocker_port);
	if (err) {
		dev_err(&pdev->dev, "port world init failed\n");
		goto err_world_port_init;
	}

	return 0;

err_world_port_init:
	rocker->ports[port_number] = NULL;
	unregister_netdev(dev);
err_register_netdev:
	rocker_world_port_post_fini(rocker_port);
err_world_port_pre_init:
err_world_check_init:
	free_netdev(dev);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 260 84.14% 3 42.86%
scott feldman scott feldman 49 15.86% 4 57.14%
Total 309 100.00% 7 100.00%



static int rocker_probe_ports(struct rocker *rocker)
{
	int i;
	size_t alloc_size;
	int err;

	alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
	rocker->ports = kzalloc(alloc_size, GFP_KERNEL);
	if (!rocker->ports)
		return -ENOMEM;
	for (i = 0; i < rocker->port_count; i++) {
		err = rocker_probe_port(rocker, i);
		if (err)
			goto remove_ports;
	}
	return 0;

remove_ports:
	rocker_remove_ports(rocker);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 101 100.00% 2 100.00%
Total 101 100.00% 2 100.00%



static int rocker_msix_init(struct rocker *rocker)
{
	struct pci_dev *pdev = rocker->pdev;
	int msix_entries;
	int i;
	int err;

	msix_entries = pci_msix_vec_count(pdev);
	if (msix_entries < 0)
		return msix_entries;

	if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
		return -EINVAL;

	rocker->msix_entries = kmalloc_array(msix_entries,
					     sizeof(struct msix_entry),
					     GFP_KERNEL);
	if (!rocker->msix_entries)
		return -ENOMEM;

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

	err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
	if (err < 0)
		goto err_enable_msix;

	return 0;

err_enable_msix:
	kfree(rocker->msix_entries);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 147 98.66% 2 66.67%
wei yongjun wei yongjun 2 1.34% 1 33.33%
Total 149 100.00% 3 100.00%



static void rocker_msix_fini(const struct rocker *rocker)
{
	pci_disable_msix(rocker->pdev);
	kfree(rocker->msix_entries);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 26 100.00% 2 100.00%
Total 26 100.00% 2 100.00%



static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct rocker *rocker;
	int err;

	rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
	if (!rocker)
		return -ENOMEM;

	err = pci_enable_device(pdev);
	if (err) {
		dev_err(&pdev->dev, "pci_enable_device failed\n");
		goto err_pci_enable_device;
	}

	err = pci_request_regions(pdev, rocker_driver_name);
	if (err) {
		dev_err(&pdev->dev, "pci_request_regions failed\n");
		goto err_pci_request_regions;
	}

	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
	if (!err) {
		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
		if (err) {
			dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
			goto err_pci_set_dma_mask;
		}
	} else {
		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
		if (err) {
			dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
			goto err_pci_set_dma_mask;
		}
	}

	if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
		dev_err(&pdev->dev, "invalid PCI region size\n");
		err = -EINVAL;
		goto err_pci_resource_len_check;
	}

	rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
				  pci_resource_len(pdev, 0));
	if (!rocker->hw_addr) {
		dev_err(&pdev->dev, "ioremap failed\n");
		err = -EIO;
		goto err_ioremap;
	}
	pci_set_master(pdev);

	rocker->pdev = pdev;
	pci_set_drvdata(pdev, rocker);

	rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);

	err = rocker_msix_init(rocker);
	if (err) {
		dev_err(&pdev->dev, "MSI-X init failed\n");
		goto err_msix_init;
	}

	err = rocker_basic_hw_test(rocker);
	if (err) {
		dev_err(&pdev->dev, "basic hw test failed\n");
		goto err_basic_hw_test;
	}

	rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);

	err = rocker_dma_rings_init(rocker);
	if (err)
		goto err_dma_rings_init;

	err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
			  rocker_cmd_irq_handler, 0,
			  rocker_driver_name, rocker);
	if (err) {
		dev_err(&pdev->dev, "cannot assign cmd irq\n");
		goto err_request_cmd_irq;
	}

	err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
			  rocker_event_irq_handler, 0,
			  rocker_driver_name, rocker);
	if (err) {
		dev_err(&pdev->dev, "cannot assign event irq\n");
		goto err_request_event_irq;
	}

	rocker->hw.id = rocker_read64(rocker, SWITCH_ID);

	err = rocker_probe_ports(rocker);
	if (err) {
		dev_err(&pdev->dev, "failed to probe ports\n");
		goto err_probe_ports;
	}

	dev_info(&pdev->dev, "Rocker switch with id %*phN\n",
		 (int)sizeof(rocker->hw.id), &rocker->hw.id);

	return 0;

err_probe_ports:
	free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
err_request_event_irq:
	free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
err_request_cmd_irq:
	rocker_dma_rings_fini(rocker);
err_dma_rings_init:
err_basic_hw_test:
	rocker_msix_fini(rocker);
err_msix_init:
	iounmap(rocker->hw_addr);
err_ioremap:
err_pci_resource_len_check:
err_pci_set_dma_mask:
	pci_release_regions(pdev);
err_pci_request_regions:
	pci_disable_device(pdev);
err_pci_enable_device:
	kfree(rocker);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 463 77.42% 2 20.00%
scott feldman scott feldman 135 22.58% 8 80.00%
Total 598 100.00% 10 100.00%



static void rocker_remove(struct pci_dev *pdev)
{
	struct rocker *rocker = pci_get_drvdata(pdev);

	rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
	rocker_remove_ports(rocker);
	free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
	free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
	rocker_dma_rings_fini(rocker);
	rocker_msix_fini(rocker);
	iounmap(rocker->hw_addr);
	pci_release_regions(rocker->pdev);
	pci_disable_device(rocker->pdev);
	kfree(rocker);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 66 69.47% 2 50.00%
simon horman simon horman 29 30.53% 2 50.00%
Total 95 100.00% 4 100.00%


static struct pci_driver rocker_pci_driver = {
	.name		= rocker_driver_name,
	.id_table	= rocker_pci_id_table,
	.probe		= rocker_probe,
	.remove		= rocker_remove,
};

/************************************
 * Net device notifier event handler
 ************************************/



static bool rocker_port_dev_check(const struct net_device *dev)
{
	return dev->netdev_ops == &rocker_port_netdev_ops;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 17 85.00% 1 50.00%
scott feldman scott feldman 3 15.00% 1 50.00%
Total 20 100.00% 2 100.00%



static int rocker_netdevice_event(struct notifier_block *unused,
				  unsigned long event, void *ptr)
{
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
	struct netdev_notifier_changeupper_info *info;
	struct rocker_port *rocker_port;
	int err;

	if (!rocker_port_dev_check(dev))
		return NOTIFY_DONE;

	switch (event) {
	case NETDEV_CHANGEUPPER:
		info = ptr;
		if (!info->master)
			goto out;
		rocker_port = netdev_priv(dev);
		if (info->linking) {
			err = rocker_world_port_master_linked(rocker_port,
							      info->upper_dev);
			if (err)
				netdev_warn(dev, "failed to reflect master linked (err %d)\n",
					    err);
		} else {
			err = rocker_world_port_master_unlinked(rocker_port,
								info->upper_dev);
			if (err)
				netdev_warn(dev, "failed to reflect master unlinked (err %d)\n",
					    err);
		}
	}
out:
	return NOTIFY_DONE;
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 100 68.03% 3 75.00%
scott feldman scott feldman 47 31.97% 1 25.00%
Total 147 100.00% 4 100.00%


static struct notifier_block rocker_netdevice_nb __read_mostly = {
	.notifier_call = rocker_netdevice_event,
};

/************************************
 * Net event notifier event handler
 ************************************/



static int rocker_netevent_event(struct notifier_block *unused,
				 unsigned long event, void *ptr)
{
	struct rocker_port *rocker_port;
	struct net_device *dev;
	struct neighbour *n = ptr;
	int err;

	switch (event) {
	case NETEVENT_NEIGH_UPDATE:
		if (n->tbl != &arp_tbl)
			return NOTIFY_DONE;
		dev = n->dev;
		if (!rocker_port_dev_check(dev))
			return NOTIFY_DONE;
		rocker_port = netdev_priv(dev);
		err = rocker_world_port_neigh_update(rocker_port, n);
		if (err)
			netdev_warn(dev, "failed to handle neigh update (err %d)\n",
				    err);
		break;
	}

	return NOTIFY_DONE;
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 85 77.27% 1 50.00%
jiri pirko jiri pirko 25 22.73% 1 50.00%
Total 110 100.00% 2 100.00%


static struct notifier_block rocker_netevent_nb __read_mostly = {
	.notifier_call = rocker_netevent_event,
};

/***********************
 * Module init and exit
 ***********************/



static int __init rocker_module_init(void)
{
	int err;

	register_netdevice_notifier(&rocker_netdevice_nb);
	register_netevent_notifier(&rocker_netevent_nb);
	err = pci_register_driver(&rocker_pci_driver);
	if (err)
		goto err_pci_register_driver;
	return 0;

err_pci_register_driver:
	unregister_netevent_notifier(&rocker_netevent_nb);
	unregister_netdevice_notifier(&rocker_netdevice_nb);
	return err;
}

Contributors
Person Tokens Prop Commits CommitProp
scott feldman scott feldman 43 72.88% 2 50.00%
jiri pirko jiri pirko 15 25.42% 1 25.00%
gilad ben-yossef gilad ben-yossef 1 1.69% 1 25.00%
Total 59 100.00% 4 100.00%



static void __exit rocker_module_exit(void)
{
	unregister_netevent_notifier(&rocker_netevent_nb);
	unregister_netdevice_notifier(&rocker_netdevice_nb);
	pci_unregister_driver(&rocker_pci_driver);
}

Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 15 55.56% 1 33.33%
scott feldman scott feldman 12 44.44% 2 66.67%
Total 27 100.00% 3 100.00%


module_init(rocker_module_init);

module_exit(rocker_module_exit);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
MODULE_DESCRIPTION("Rocker switch device driver");
MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);
Overall Contributors
Person Tokens Prop Commits CommitProp
jiri pirko jiri pirko 10286 77.41% 17 25.00%
scott feldman scott feldman 2575 19.38% 31 45.59%
david ahern david ahern 171 1.29% 3 4.41%
sridhar samudrala sridhar samudrala 127 0.96% 1 1.47%
simon horman simon horman 81 0.61% 8 11.76%
anuradha karuppiah anuradha karuppiah 27 0.20% 1 1.47%
vivien didelot vivien didelot 9 0.07% 2 2.94%
ido schimmel ido schimmel 6 0.05% 1 1.47%
wei yongjun wei yongjun 2 0.02% 1 1.47%
ying xue ying xue 2 0.02% 1 1.47%
gilad ben-yossef gilad ben-yossef 1 0.01% 1 1.47%
christoph hellwig christoph hellwig 1 0.01% 1 1.47%
Total 13288 100.00% 68 100.00%
  Directory: drivers/net/ethernet/rocker

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
jiri pirko	jiri pirko	23	100.00%	2	100.00%
	Total	23	100.00%	2	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/net/ethernet/rocker/rocker_main.c

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