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linux_old1/drivers/net/ethernet/qlogic/qed/qed_main.c

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/* QLogic qed NIC Driver
* Copyright (c) 2015 QLogic Corporation
*
* This software is available under the terms of the GNU General Public License
* (GPL) Version 2, available from the file COPYING in the main directory of
* this source tree.
*/
#include <linux/stddef.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include <linux/dma-mapping.h>
#include <linux/string.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
#include <linux/vmalloc.h>
#include <linux/qed/qed_if.h>
#include "qed.h"
#include "qed_sp.h"
#include "qed_dev_api.h"
#include "qed_mcp.h"
#include "qed_hw.h"
static const char version[] =
"QLogic QL4xxx 40G/100G Ethernet Driver qed " DRV_MODULE_VERSION "\n";
MODULE_DESCRIPTION("QLogic 25G/40G/50G/100G Core Module");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
#define FW_FILE_VERSION \
__stringify(FW_MAJOR_VERSION) "." \
__stringify(FW_MINOR_VERSION) "." \
__stringify(FW_REVISION_VERSION) "." \
__stringify(FW_ENGINEERING_VERSION)
#define QED_FW_FILE_NAME \
"qed/qed_init_values_zipped-" FW_FILE_VERSION ".bin"
static int __init qed_init(void)
{
pr_notice("qed_init called\n");
pr_info("%s", version);
return 0;
}
static void __exit qed_cleanup(void)
{
pr_notice("qed_cleanup called\n");
}
module_init(qed_init);
module_exit(qed_cleanup);
/* Check if the DMA controller on the machine can properly handle the DMA
* addressing required by the device.
*/
static int qed_set_coherency_mask(struct qed_dev *cdev)
{
struct device *dev = &cdev->pdev->dev;
if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
DP_NOTICE(cdev,
"Can't request 64-bit consistent allocations\n");
return -EIO;
}
} else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
DP_NOTICE(cdev, "Can't request 64b/32b DMA addresses\n");
return -EIO;
}
return 0;
}
static void qed_free_pci(struct qed_dev *cdev)
{
struct pci_dev *pdev = cdev->pdev;
if (cdev->doorbells)
iounmap(cdev->doorbells);
if (cdev->regview)
iounmap(cdev->regview);
if (atomic_read(&pdev->enable_cnt) == 1)
pci_release_regions(pdev);
pci_disable_device(pdev);
}
/* Performs PCI initializations as well as initializing PCI-related parameters
* in the device structrue. Returns 0 in case of success.
*/
static int qed_init_pci(struct qed_dev *cdev,
struct pci_dev *pdev)
{
int rc;
cdev->pdev = pdev;
rc = pci_enable_device(pdev);
if (rc) {
DP_NOTICE(cdev, "Cannot enable PCI device\n");
goto err0;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
DP_NOTICE(cdev, "No memory region found in bar #0\n");
rc = -EIO;
goto err1;
}
if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
DP_NOTICE(cdev, "No memory region found in bar #2\n");
rc = -EIO;
goto err1;
}
if (atomic_read(&pdev->enable_cnt) == 1) {
rc = pci_request_regions(pdev, "qed");
if (rc) {
DP_NOTICE(cdev,
"Failed to request PCI memory resources\n");
goto err1;
}
pci_set_master(pdev);
pci_save_state(pdev);
}
if (!pci_is_pcie(pdev)) {
DP_NOTICE(cdev, "The bus is not PCI Express\n");
rc = -EIO;
goto err2;
}
cdev->pci_params.pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
if (cdev->pci_params.pm_cap == 0)
DP_NOTICE(cdev, "Cannot find power management capability\n");
rc = qed_set_coherency_mask(cdev);
if (rc)
goto err2;
cdev->pci_params.mem_start = pci_resource_start(pdev, 0);
cdev->pci_params.mem_end = pci_resource_end(pdev, 0);
cdev->pci_params.irq = pdev->irq;
cdev->regview = pci_ioremap_bar(pdev, 0);
if (!cdev->regview) {
DP_NOTICE(cdev, "Cannot map register space, aborting\n");
rc = -ENOMEM;
goto err2;
}
cdev->db_phys_addr = pci_resource_start(cdev->pdev, 2);
cdev->db_size = pci_resource_len(cdev->pdev, 2);
cdev->doorbells = ioremap_wc(cdev->db_phys_addr, cdev->db_size);
if (!cdev->doorbells) {
DP_NOTICE(cdev, "Cannot map doorbell space\n");
return -ENOMEM;
}
return 0;
err2:
pci_release_regions(pdev);
err1:
pci_disable_device(pdev);
err0:
return rc;
}
int qed_fill_dev_info(struct qed_dev *cdev,
struct qed_dev_info *dev_info)
{
struct qed_ptt *ptt;
memset(dev_info, 0, sizeof(struct qed_dev_info));
dev_info->num_hwfns = cdev->num_hwfns;
dev_info->pci_mem_start = cdev->pci_params.mem_start;
dev_info->pci_mem_end = cdev->pci_params.mem_end;
dev_info->pci_irq = cdev->pci_params.irq;
dev_info->is_mf = IS_MF(&cdev->hwfns[0]);
ether_addr_copy(dev_info->hw_mac, cdev->hwfns[0].hw_info.hw_mac_addr);
dev_info->fw_major = FW_MAJOR_VERSION;
dev_info->fw_minor = FW_MINOR_VERSION;
dev_info->fw_rev = FW_REVISION_VERSION;
dev_info->fw_eng = FW_ENGINEERING_VERSION;
dev_info->mf_mode = cdev->mf_mode;
qed_mcp_get_mfw_ver(cdev, &dev_info->mfw_rev);
ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
if (ptt) {
qed_mcp_get_flash_size(QED_LEADING_HWFN(cdev), ptt,
&dev_info->flash_size);
qed_ptt_release(QED_LEADING_HWFN(cdev), ptt);
}
return 0;
}
static void qed_free_cdev(struct qed_dev *cdev)
{
kfree((void *)cdev);
}
static struct qed_dev *qed_alloc_cdev(struct pci_dev *pdev)
{
struct qed_dev *cdev;
cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
if (!cdev)
return cdev;
qed_init_struct(cdev);
return cdev;
}
/* Sets the requested power state */
static int qed_set_power_state(struct qed_dev *cdev,
pci_power_t state)
{
if (!cdev)
return -ENODEV;
DP_VERBOSE(cdev, NETIF_MSG_DRV, "Omitting Power state change\n");
return 0;
}
/* probing */
static struct qed_dev *qed_probe(struct pci_dev *pdev,
enum qed_protocol protocol,
u32 dp_module,
u8 dp_level)
{
struct qed_dev *cdev;
int rc;
cdev = qed_alloc_cdev(pdev);
if (!cdev)
goto err0;
cdev->protocol = protocol;
qed_init_dp(cdev, dp_module, dp_level);
rc = qed_init_pci(cdev, pdev);
if (rc) {
DP_ERR(cdev, "init pci failed\n");
goto err1;
}
DP_INFO(cdev, "PCI init completed successfully\n");
rc = qed_hw_prepare(cdev, QED_PCI_DEFAULT);
if (rc) {
DP_ERR(cdev, "hw prepare failed\n");
goto err2;
}
DP_INFO(cdev, "qed_probe completed successffuly\n");
return cdev;
err2:
qed_free_pci(cdev);
err1:
qed_free_cdev(cdev);
err0:
return NULL;
}
static void qed_remove(struct qed_dev *cdev)
{
if (!cdev)
return;
qed_hw_remove(cdev);
qed_free_pci(cdev);
qed_set_power_state(cdev, PCI_D3hot);
qed_free_cdev(cdev);
}
static void qed_disable_msix(struct qed_dev *cdev)
{
if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
pci_disable_msix(cdev->pdev);
kfree(cdev->int_params.msix_table);
} else if (cdev->int_params.out.int_mode == QED_INT_MODE_MSI) {
pci_disable_msi(cdev->pdev);
}
memset(&cdev->int_params.out, 0, sizeof(struct qed_int_param));
}
static int qed_enable_msix(struct qed_dev *cdev,
struct qed_int_params *int_params)
{
int i, rc, cnt;
cnt = int_params->in.num_vectors;
for (i = 0; i < cnt; i++)
int_params->msix_table[i].entry = i;
rc = pci_enable_msix_range(cdev->pdev, int_params->msix_table,
int_params->in.min_msix_cnt, cnt);
if (rc < cnt && rc >= int_params->in.min_msix_cnt &&
(rc % cdev->num_hwfns)) {
pci_disable_msix(cdev->pdev);
/* If fastpath is initialized, we need at least one interrupt
* per hwfn [and the slow path interrupts]. New requested number
* should be a multiple of the number of hwfns.
*/
cnt = (rc / cdev->num_hwfns) * cdev->num_hwfns;
DP_NOTICE(cdev,
"Trying to enable MSI-X with less vectors (%d out of %d)\n",
cnt, int_params->in.num_vectors);
rc = pci_enable_msix_exact(cdev->pdev,
int_params->msix_table, cnt);
if (!rc)
rc = cnt;
}
if (rc > 0) {
/* MSI-x configuration was achieved */
int_params->out.int_mode = QED_INT_MODE_MSIX;
int_params->out.num_vectors = rc;
rc = 0;
} else {
DP_NOTICE(cdev,
"Failed to enable MSI-X [Requested %d vectors][rc %d]\n",
cnt, rc);
}
return rc;
}
/* This function outputs the int mode and the number of enabled msix vector */
static int qed_set_int_mode(struct qed_dev *cdev, bool force_mode)
{
struct qed_int_params *int_params = &cdev->int_params;
struct msix_entry *tbl;
int rc = 0, cnt;
switch (int_params->in.int_mode) {
case QED_INT_MODE_MSIX:
/* Allocate MSIX table */
cnt = int_params->in.num_vectors;
int_params->msix_table = kcalloc(cnt, sizeof(*tbl), GFP_KERNEL);
if (!int_params->msix_table) {
rc = -ENOMEM;
goto out;
}
/* Enable MSIX */
rc = qed_enable_msix(cdev, int_params);
if (!rc)
goto out;
DP_NOTICE(cdev, "Failed to enable MSI-X\n");
kfree(int_params->msix_table);
if (force_mode)
goto out;
/* Fallthrough */
case QED_INT_MODE_MSI:
rc = pci_enable_msi(cdev->pdev);
if (!rc) {
int_params->out.int_mode = QED_INT_MODE_MSI;
goto out;
}
DP_NOTICE(cdev, "Failed to enable MSI\n");
if (force_mode)
goto out;
/* Fallthrough */
case QED_INT_MODE_INTA:
int_params->out.int_mode = QED_INT_MODE_INTA;
rc = 0;
goto out;
default:
DP_NOTICE(cdev, "Unknown int_mode value %d\n",
int_params->in.int_mode);
rc = -EINVAL;
}
out:
cdev->int_coalescing_mode = QED_COAL_MODE_ENABLE;
return rc;
}
static void qed_simd_handler_config(struct qed_dev *cdev, void *token,
int index, void(*handler)(void *))
{
struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
int relative_idx = index / cdev->num_hwfns;
hwfn->simd_proto_handler[relative_idx].func = handler;
hwfn->simd_proto_handler[relative_idx].token = token;
}
static void qed_simd_handler_clean(struct qed_dev *cdev, int index)
{
struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
int relative_idx = index / cdev->num_hwfns;
memset(&hwfn->simd_proto_handler[relative_idx], 0,
sizeof(struct qed_simd_fp_handler));
}
static irqreturn_t qed_msix_sp_int(int irq, void *tasklet)
{
tasklet_schedule((struct tasklet_struct *)tasklet);
return IRQ_HANDLED;
}
static irqreturn_t qed_single_int(int irq, void *dev_instance)
{
struct qed_dev *cdev = (struct qed_dev *)dev_instance;
struct qed_hwfn *hwfn;
irqreturn_t rc = IRQ_NONE;
u64 status;
int i, j;
for (i = 0; i < cdev->num_hwfns; i++) {
status = qed_int_igu_read_sisr_reg(&cdev->hwfns[i]);
if (!status)
continue;
hwfn = &cdev->hwfns[i];
/* Slowpath interrupt */
if (unlikely(status & 0x1)) {
tasklet_schedule(hwfn->sp_dpc);
status &= ~0x1;
rc = IRQ_HANDLED;
}
/* Fastpath interrupts */
for (j = 0; j < 64; j++) {
if ((0x2ULL << j) & status) {
hwfn->simd_proto_handler[j].func(
hwfn->simd_proto_handler[j].token);
status &= ~(0x2ULL << j);
rc = IRQ_HANDLED;
}
}
if (unlikely(status))
DP_VERBOSE(hwfn, NETIF_MSG_INTR,
"got an unknown interrupt status 0x%llx\n",
status);
}
return rc;
}
static int qed_slowpath_irq_req(struct qed_dev *cdev)
{
int i = 0, rc = 0;
if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
/* Request all the slowpath MSI-X vectors */
for (i = 0; i < cdev->num_hwfns; i++) {
snprintf(cdev->hwfns[i].name, NAME_SIZE,
"sp-%d-%02x:%02x.%02x",
i, cdev->pdev->bus->number,
PCI_SLOT(cdev->pdev->devfn),
cdev->hwfns[i].abs_pf_id);
rc = request_irq(cdev->int_params.msix_table[i].vector,
qed_msix_sp_int, 0,
cdev->hwfns[i].name,
cdev->hwfns[i].sp_dpc);
if (rc)
break;
DP_VERBOSE(&cdev->hwfns[i],
(NETIF_MSG_INTR | QED_MSG_SP),
"Requested slowpath MSI-X\n");
}
if (i != cdev->num_hwfns) {
/* Free already request MSI-X vectors */
for (i--; i >= 0; i--) {
unsigned int vec =
cdev->int_params.msix_table[i].vector;
synchronize_irq(vec);
free_irq(cdev->int_params.msix_table[i].vector,
cdev->hwfns[i].sp_dpc);
}
}
} else {
unsigned long flags = 0;
snprintf(cdev->name, NAME_SIZE, "%02x:%02x.%02x",
cdev->pdev->bus->number, PCI_SLOT(cdev->pdev->devfn),
PCI_FUNC(cdev->pdev->devfn));
if (cdev->int_params.out.int_mode == QED_INT_MODE_INTA)
flags |= IRQF_SHARED;
rc = request_irq(cdev->pdev->irq, qed_single_int,
flags, cdev->name, cdev);
}
return rc;
}
static void qed_slowpath_irq_free(struct qed_dev *cdev)
{
int i;
if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
for_each_hwfn(cdev, i) {
synchronize_irq(cdev->int_params.msix_table[i].vector);
free_irq(cdev->int_params.msix_table[i].vector,
cdev->hwfns[i].sp_dpc);
}
} else {
free_irq(cdev->pdev->irq, cdev);
}
}
static int qed_nic_stop(struct qed_dev *cdev)
{
int i, rc;
rc = qed_hw_stop(cdev);
for (i = 0; i < cdev->num_hwfns; i++) {
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
if (p_hwfn->b_sp_dpc_enabled) {
tasklet_disable(p_hwfn->sp_dpc);
p_hwfn->b_sp_dpc_enabled = false;
DP_VERBOSE(cdev, NETIF_MSG_IFDOWN,
"Disabled sp taskelt [hwfn %d] at %p\n",
i, p_hwfn->sp_dpc);
}
}
return rc;
}
static int qed_nic_reset(struct qed_dev *cdev)
{
int rc;
rc = qed_hw_reset(cdev);
if (rc)
return rc;
qed_resc_free(cdev);
return 0;
}
static int qed_nic_setup(struct qed_dev *cdev)
{
int rc;
rc = qed_resc_alloc(cdev);
if (rc)
return rc;
DP_INFO(cdev, "Allocated qed resources\n");
qed_resc_setup(cdev);
return rc;
}
static int qed_set_int_fp(struct qed_dev *cdev, u16 cnt)
{
int limit = 0;
/* Mark the fastpath as free/used */
cdev->int_params.fp_initialized = cnt ? true : false;
if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX)
limit = cdev->num_hwfns * 63;
else if (cdev->int_params.fp_msix_cnt)
limit = cdev->int_params.fp_msix_cnt;
if (!limit)
return -ENOMEM;
return min_t(int, cnt, limit);
}
static int qed_get_int_fp(struct qed_dev *cdev, struct qed_int_info *info)
{
memset(info, 0, sizeof(struct qed_int_info));
if (!cdev->int_params.fp_initialized) {
DP_INFO(cdev,
"Protocol driver requested interrupt information, but its support is not yet configured\n");
return -EINVAL;
}
/* Need to expose only MSI-X information; Single IRQ is handled solely
* by qed.
*/
if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
int msix_base = cdev->int_params.fp_msix_base;
info->msix_cnt = cdev->int_params.fp_msix_cnt;
info->msix = &cdev->int_params.msix_table[msix_base];
}
return 0;
}
static int qed_slowpath_setup_int(struct qed_dev *cdev,
enum qed_int_mode int_mode)
{
int rc, i;
u8 num_vectors = 0;
memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
cdev->int_params.in.int_mode = int_mode;
for_each_hwfn(cdev, i)
num_vectors += qed_int_get_num_sbs(&cdev->hwfns[i], NULL) + 1;
cdev->int_params.in.num_vectors = num_vectors;
/* We want a minimum of one slowpath and one fastpath vector per hwfn */
cdev->int_params.in.min_msix_cnt = cdev->num_hwfns * 2;
rc = qed_set_int_mode(cdev, false);
if (rc) {
DP_ERR(cdev, "qed_slowpath_setup_int ERR\n");
return rc;
}
cdev->int_params.fp_msix_base = cdev->num_hwfns;
cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors -
cdev->num_hwfns;
return 0;
}
u32 qed_unzip_data(struct qed_hwfn *p_hwfn, u32 input_len,
u8 *input_buf, u32 max_size, u8 *unzip_buf)
{
int rc;
p_hwfn->stream->next_in = input_buf;
p_hwfn->stream->avail_in = input_len;
p_hwfn->stream->next_out = unzip_buf;
p_hwfn->stream->avail_out = max_size;
rc = zlib_inflateInit2(p_hwfn->stream, MAX_WBITS);
if (rc != Z_OK) {
DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "zlib init failed, rc = %d\n",
rc);
return 0;
}
rc = zlib_inflate(p_hwfn->stream, Z_FINISH);
zlib_inflateEnd(p_hwfn->stream);
if (rc != Z_OK && rc != Z_STREAM_END) {
DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "FW unzip error: %s, rc=%d\n",
p_hwfn->stream->msg, rc);
return 0;
}
return p_hwfn->stream->total_out / 4;
}
static int qed_alloc_stream_mem(struct qed_dev *cdev)
{
int i;
void *workspace;
for_each_hwfn(cdev, i) {
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
p_hwfn->stream = kzalloc(sizeof(*p_hwfn->stream), GFP_KERNEL);
if (!p_hwfn->stream)
return -ENOMEM;
workspace = vzalloc(zlib_inflate_workspacesize());
if (!workspace)
return -ENOMEM;
p_hwfn->stream->workspace = workspace;
}
return 0;
}
static void qed_free_stream_mem(struct qed_dev *cdev)
{
int i;
for_each_hwfn(cdev, i) {
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
if (!p_hwfn->stream)
return;
vfree(p_hwfn->stream->workspace);
kfree(p_hwfn->stream);
}
}
static void qed_update_pf_params(struct qed_dev *cdev,
struct qed_pf_params *params)
{
int i;
for (i = 0; i < cdev->num_hwfns; i++) {
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
p_hwfn->pf_params = *params;
}
}
static int qed_slowpath_start(struct qed_dev *cdev,
struct qed_slowpath_params *params)
{
struct qed_mcp_drv_version drv_version;
const u8 *data = NULL;
struct qed_hwfn *hwfn;
int rc;
rc = request_firmware(&cdev->firmware, QED_FW_FILE_NAME,
&cdev->pdev->dev);
if (rc) {
DP_NOTICE(cdev,
"Failed to find fw file - /lib/firmware/%s\n",
QED_FW_FILE_NAME);
goto err;
}
rc = qed_nic_setup(cdev);
if (rc)
goto err;
rc = qed_slowpath_setup_int(cdev, params->int_mode);
if (rc)
goto err1;
/* Request the slowpath IRQ */
rc = qed_slowpath_irq_req(cdev);
if (rc)
goto err2;
/* Allocate stream for unzipping */
rc = qed_alloc_stream_mem(cdev);
if (rc) {
DP_NOTICE(cdev, "Failed to allocate stream memory\n");
goto err3;
}
/* Start the slowpath */
data = cdev->firmware->data;
rc = qed_hw_init(cdev, true, cdev->int_params.out.int_mode,
true, data);
if (rc)
goto err3;
DP_INFO(cdev,
"HW initialization and function start completed successfully\n");
hwfn = QED_LEADING_HWFN(cdev);
drv_version.version = (params->drv_major << 24) |
(params->drv_minor << 16) |
(params->drv_rev << 8) |
(params->drv_eng);
strlcpy(drv_version.name, params->name,
MCP_DRV_VER_STR_SIZE - 4);
rc = qed_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
&drv_version);
if (rc) {
DP_NOTICE(cdev, "Failed sending drv version command\n");
return rc;
}
return 0;
err3:
qed_free_stream_mem(cdev);
qed_slowpath_irq_free(cdev);
err2:
qed_disable_msix(cdev);
err1:
qed_resc_free(cdev);
err:
release_firmware(cdev->firmware);
return rc;
}
static int qed_slowpath_stop(struct qed_dev *cdev)
{
if (!cdev)
return -ENODEV;
qed_free_stream_mem(cdev);
qed_nic_stop(cdev);
qed_slowpath_irq_free(cdev);
qed_disable_msix(cdev);
qed_nic_reset(cdev);
release_firmware(cdev->firmware);
return 0;
}
static void qed_set_id(struct qed_dev *cdev, char name[NAME_SIZE],
char ver_str[VER_SIZE])
{
int i;
memcpy(cdev->name, name, NAME_SIZE);
for_each_hwfn(cdev, i)
snprintf(cdev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
memcpy(cdev->ver_str, ver_str, VER_SIZE);
cdev->drv_type = DRV_ID_DRV_TYPE_LINUX;
}
static u32 qed_sb_init(struct qed_dev *cdev,
struct qed_sb_info *sb_info,
void *sb_virt_addr,
dma_addr_t sb_phy_addr, u16 sb_id,
enum qed_sb_type type)
{
struct qed_hwfn *p_hwfn;
int hwfn_index;
u16 rel_sb_id;
u8 n_hwfns;
u32 rc;
/* RoCE uses single engine and CMT uses two engines. When using both
* we force only a single engine. Storage uses only engine 0 too.
*/
if (type == QED_SB_TYPE_L2_QUEUE)
n_hwfns = cdev->num_hwfns;
else
n_hwfns = 1;
hwfn_index = sb_id % n_hwfns;
p_hwfn = &cdev->hwfns[hwfn_index];
rel_sb_id = sb_id / n_hwfns;
DP_VERBOSE(cdev, NETIF_MSG_INTR,
"hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
hwfn_index, rel_sb_id, sb_id);
rc = qed_int_sb_init(p_hwfn, p_hwfn->p_main_ptt, sb_info,
sb_virt_addr, sb_phy_addr, rel_sb_id);
return rc;
}
static u32 qed_sb_release(struct qed_dev *cdev,
struct qed_sb_info *sb_info,
u16 sb_id)
{
struct qed_hwfn *p_hwfn;
int hwfn_index;
u16 rel_sb_id;
u32 rc;
hwfn_index = sb_id % cdev->num_hwfns;
p_hwfn = &cdev->hwfns[hwfn_index];
rel_sb_id = sb_id / cdev->num_hwfns;
DP_VERBOSE(cdev, NETIF_MSG_INTR,
"hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
hwfn_index, rel_sb_id, sb_id);
rc = qed_int_sb_release(p_hwfn, sb_info, rel_sb_id);
return rc;
}
static int qed_set_link(struct qed_dev *cdev,
struct qed_link_params *params)
{
struct qed_hwfn *hwfn;
struct qed_mcp_link_params *link_params;
struct qed_ptt *ptt;
int rc;
if (!cdev)
return -ENODEV;
/* The link should be set only once per PF */
hwfn = &cdev->hwfns[0];
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EBUSY;
link_params = qed_mcp_get_link_params(hwfn);
if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
link_params->speed.autoneg = params->autoneg;
if (params->override_flags & QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS) {
link_params->speed.advertised_speeds = 0;
if ((params->adv_speeds & SUPPORTED_1000baseT_Half) ||
(params->adv_speeds & SUPPORTED_1000baseT_Full))
link_params->speed.advertised_speeds |=
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G;
if (params->adv_speeds & SUPPORTED_10000baseKR_Full)
link_params->speed.advertised_speeds |=
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G;
if (params->adv_speeds & SUPPORTED_40000baseLR4_Full)
link_params->speed.advertised_speeds |=
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G;
if (params->adv_speeds & 0)
link_params->speed.advertised_speeds |=
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G;
if (params->adv_speeds & 0)
link_params->speed.advertised_speeds |=
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G;
}
if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED)
link_params->speed.forced_speed = params->forced_speed;
rc = qed_mcp_set_link(hwfn, ptt, params->link_up);
qed_ptt_release(hwfn, ptt);
return rc;
}
static int qed_get_port_type(u32 media_type)
{
int port_type;
switch (media_type) {
case MEDIA_SFPP_10G_FIBER:
case MEDIA_SFP_1G_FIBER:
case MEDIA_XFP_FIBER:
case MEDIA_KR:
port_type = PORT_FIBRE;
break;
case MEDIA_DA_TWINAX:
port_type = PORT_DA;
break;
case MEDIA_BASE_T:
port_type = PORT_TP;
break;
case MEDIA_NOT_PRESENT:
port_type = PORT_NONE;
break;
case MEDIA_UNSPECIFIED:
default:
port_type = PORT_OTHER;
break;
}
return port_type;
}
static void qed_fill_link(struct qed_hwfn *hwfn,
struct qed_link_output *if_link)
{
struct qed_mcp_link_params params;
struct qed_mcp_link_state link;
struct qed_mcp_link_capabilities link_caps;
u32 media_type;
memset(if_link, 0, sizeof(*if_link));
/* Prepare source inputs */
memcpy(&params, qed_mcp_get_link_params(hwfn), sizeof(params));
memcpy(&link, qed_mcp_get_link_state(hwfn), sizeof(link));
memcpy(&link_caps, qed_mcp_get_link_capabilities(hwfn),
sizeof(link_caps));
/* Set the link parameters to pass to protocol driver */
if (link.link_up)
if_link->link_up = true;
/* TODO - at the moment assume supported and advertised speed equal */
if_link->supported_caps = SUPPORTED_FIBRE;
if (params.speed.autoneg)
if_link->supported_caps |= SUPPORTED_Autoneg;
if (params.pause.autoneg ||
(params.pause.forced_rx && params.pause.forced_tx))
if_link->supported_caps |= SUPPORTED_Asym_Pause;
if (params.pause.autoneg || params.pause.forced_rx ||
params.pause.forced_tx)
if_link->supported_caps |= SUPPORTED_Pause;
if_link->advertised_caps = if_link->supported_caps;
if (params.speed.advertised_speeds &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
if_link->advertised_caps |= SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full;
if (params.speed.advertised_speeds &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
if_link->advertised_caps |= SUPPORTED_10000baseKR_Full;
if (params.speed.advertised_speeds &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
if_link->advertised_caps |= SUPPORTED_40000baseLR4_Full;
if (params.speed.advertised_speeds &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
if_link->advertised_caps |= 0;
if (params.speed.advertised_speeds &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G)
if_link->advertised_caps |= 0;
if (link_caps.speed_capabilities &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
if_link->supported_caps |= SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full;
if (link_caps.speed_capabilities &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
if_link->supported_caps |= SUPPORTED_10000baseKR_Full;
if (link_caps.speed_capabilities &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
if_link->supported_caps |= SUPPORTED_40000baseLR4_Full;
if (link_caps.speed_capabilities &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
if_link->supported_caps |= 0;
if (link_caps.speed_capabilities &
NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G)
if_link->supported_caps |= 0;
if (link.link_up)
if_link->speed = link.speed;
/* TODO - fill duplex properly */
if_link->duplex = DUPLEX_FULL;
qed_mcp_get_media_type(hwfn->cdev, &media_type);
if_link->port = qed_get_port_type(media_type);
if_link->autoneg = params.speed.autoneg;
if (params.pause.autoneg)
if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
if (params.pause.forced_rx)
if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
if (params.pause.forced_tx)
if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
/* Link partner capabilities */
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_1G_HD)
if_link->lp_caps |= SUPPORTED_1000baseT_Half;
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_1G_FD)
if_link->lp_caps |= SUPPORTED_1000baseT_Full;
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_10G)
if_link->lp_caps |= SUPPORTED_10000baseKR_Full;
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_40G)
if_link->lp_caps |= SUPPORTED_40000baseLR4_Full;
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_50G)
if_link->lp_caps |= 0;
if (link.partner_adv_speed &
QED_LINK_PARTNER_SPEED_100G)
if_link->lp_caps |= 0;
if (link.an_complete)
if_link->lp_caps |= SUPPORTED_Autoneg;
if (link.partner_adv_pause)
if_link->lp_caps |= SUPPORTED_Pause;
if (link.partner_adv_pause == QED_LINK_PARTNER_ASYMMETRIC_PAUSE ||
link.partner_adv_pause == QED_LINK_PARTNER_BOTH_PAUSE)
if_link->lp_caps |= SUPPORTED_Asym_Pause;
}
static void qed_get_current_link(struct qed_dev *cdev,
struct qed_link_output *if_link)
{
qed_fill_link(&cdev->hwfns[0], if_link);
}
void qed_link_update(struct qed_hwfn *hwfn)
{
void *cookie = hwfn->cdev->ops_cookie;
struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
struct qed_link_output if_link;
qed_fill_link(hwfn, &if_link);
if (IS_LEAD_HWFN(hwfn) && cookie)
op->link_update(cookie, &if_link);
}
static int qed_drain(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn;
struct qed_ptt *ptt;
int i, rc;
for_each_hwfn(cdev, i) {
hwfn = &cdev->hwfns[i];
ptt = qed_ptt_acquire(hwfn);
if (!ptt) {
DP_NOTICE(hwfn, "Failed to drain NIG; No PTT\n");
return -EBUSY;
}
rc = qed_mcp_drain(hwfn, ptt);
if (rc)
return rc;
qed_ptt_release(hwfn, ptt);
}
return 0;
}
const struct qed_common_ops qed_common_ops_pass = {
.probe = &qed_probe,
.remove = &qed_remove,
.set_power_state = &qed_set_power_state,
.set_id = &qed_set_id,
.update_pf_params = &qed_update_pf_params,
.slowpath_start = &qed_slowpath_start,
.slowpath_stop = &qed_slowpath_stop,
.set_fp_int = &qed_set_int_fp,
.get_fp_int = &qed_get_int_fp,
.sb_init = &qed_sb_init,
.sb_release = &qed_sb_release,
.simd_handler_config = &qed_simd_handler_config,
.simd_handler_clean = &qed_simd_handler_clean,
.set_link = &qed_set_link,
.get_link = &qed_get_current_link,
.drain = &qed_drain,
.update_msglvl = &qed_init_dp,
.chain_alloc = &qed_chain_alloc,
.chain_free = &qed_chain_free,
};
u32 qed_get_protocol_version(enum qed_protocol protocol)
{
switch (protocol) {
case QED_PROTOCOL_ETH:
return QED_ETH_INTERFACE_VERSION;
default:
return 0;
}
}
EXPORT_SYMBOL(qed_get_protocol_version);
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