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kernel/drivers/net/ethernet/pensando/ionic/ionic_main.c

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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
#include <linux/printk.h>
#include <linux/dynamic_debug.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/utsname.h>
#include <generated/utsrelease.h>
#include <linux/ctype.h>
#include "ionic.h"
#include "ionic_bus.h"
#include "ionic_lif.h"
#include "ionic_debugfs.h"
MODULE_DESCRIPTION(IONIC_DRV_DESCRIPTION);
MODULE_AUTHOR("Shannon Nelson <shannon.nelson@amd.com>");
MODULE_LICENSE("GPL");
static const char *ionic_error_to_str(enum ionic_status_code code)
{
switch (code) {
case IONIC_RC_SUCCESS:
return "IONIC_RC_SUCCESS";
case IONIC_RC_EVERSION:
return "IONIC_RC_EVERSION";
case IONIC_RC_EOPCODE:
return "IONIC_RC_EOPCODE";
case IONIC_RC_EIO:
return "IONIC_RC_EIO";
case IONIC_RC_EPERM:
return "IONIC_RC_EPERM";
case IONIC_RC_EQID:
return "IONIC_RC_EQID";
case IONIC_RC_EQTYPE:
return "IONIC_RC_EQTYPE";
case IONIC_RC_ENOENT:
return "IONIC_RC_ENOENT";
case IONIC_RC_EINTR:
return "IONIC_RC_EINTR";
case IONIC_RC_EAGAIN:
return "IONIC_RC_EAGAIN";
case IONIC_RC_ENOMEM:
return "IONIC_RC_ENOMEM";
case IONIC_RC_EFAULT:
return "IONIC_RC_EFAULT";
case IONIC_RC_EBUSY:
return "IONIC_RC_EBUSY";
case IONIC_RC_EEXIST:
return "IONIC_RC_EEXIST";
case IONIC_RC_EINVAL:
return "IONIC_RC_EINVAL";
case IONIC_RC_ENOSPC:
return "IONIC_RC_ENOSPC";
case IONIC_RC_ERANGE:
return "IONIC_RC_ERANGE";
case IONIC_RC_BAD_ADDR:
return "IONIC_RC_BAD_ADDR";
case IONIC_RC_DEV_CMD:
return "IONIC_RC_DEV_CMD";
case IONIC_RC_ENOSUPP:
return "IONIC_RC_ENOSUPP";
case IONIC_RC_ERROR:
return "IONIC_RC_ERROR";
case IONIC_RC_ERDMA:
return "IONIC_RC_ERDMA";
case IONIC_RC_EBAD_FW:
return "IONIC_RC_EBAD_FW";
default:
return "IONIC_RC_UNKNOWN";
}
}
static int ionic_error_to_errno(enum ionic_status_code code)
{
switch (code) {
case IONIC_RC_SUCCESS:
return 0;
case IONIC_RC_EVERSION:
case IONIC_RC_EQTYPE:
case IONIC_RC_EQID:
case IONIC_RC_EINVAL:
case IONIC_RC_ENOSUPP:
return -EINVAL;
case IONIC_RC_EPERM:
return -EPERM;
case IONIC_RC_ENOENT:
return -ENOENT;
case IONIC_RC_EAGAIN:
return -EAGAIN;
case IONIC_RC_ENOMEM:
return -ENOMEM;
case IONIC_RC_EFAULT:
return -EFAULT;
case IONIC_RC_EBUSY:
return -EBUSY;
case IONIC_RC_EEXIST:
return -EEXIST;
case IONIC_RC_ENOSPC:
return -ENOSPC;
case IONIC_RC_ERANGE:
return -ERANGE;
case IONIC_RC_BAD_ADDR:
return -EFAULT;
case IONIC_RC_EOPCODE:
case IONIC_RC_EINTR:
case IONIC_RC_DEV_CMD:
case IONIC_RC_ERROR:
case IONIC_RC_ERDMA:
case IONIC_RC_EIO:
default:
return -EIO;
}
}
static const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode)
{
switch (opcode) {
case IONIC_CMD_NOP:
return "IONIC_CMD_NOP";
case IONIC_CMD_INIT:
return "IONIC_CMD_INIT";
case IONIC_CMD_RESET:
return "IONIC_CMD_RESET";
case IONIC_CMD_IDENTIFY:
return "IONIC_CMD_IDENTIFY";
case IONIC_CMD_GETATTR:
return "IONIC_CMD_GETATTR";
case IONIC_CMD_SETATTR:
return "IONIC_CMD_SETATTR";
case IONIC_CMD_PORT_IDENTIFY:
return "IONIC_CMD_PORT_IDENTIFY";
case IONIC_CMD_PORT_INIT:
return "IONIC_CMD_PORT_INIT";
case IONIC_CMD_PORT_RESET:
return "IONIC_CMD_PORT_RESET";
case IONIC_CMD_PORT_GETATTR:
return "IONIC_CMD_PORT_GETATTR";
case IONIC_CMD_PORT_SETATTR:
return "IONIC_CMD_PORT_SETATTR";
case IONIC_CMD_LIF_INIT:
return "IONIC_CMD_LIF_INIT";
case IONIC_CMD_LIF_RESET:
return "IONIC_CMD_LIF_RESET";
case IONIC_CMD_LIF_IDENTIFY:
return "IONIC_CMD_LIF_IDENTIFY";
case IONIC_CMD_LIF_SETATTR:
return "IONIC_CMD_LIF_SETATTR";
case IONIC_CMD_LIF_GETATTR:
return "IONIC_CMD_LIF_GETATTR";
case IONIC_CMD_LIF_SETPHC:
return "IONIC_CMD_LIF_SETPHC";
case IONIC_CMD_RX_MODE_SET:
return "IONIC_CMD_RX_MODE_SET";
case IONIC_CMD_RX_FILTER_ADD:
return "IONIC_CMD_RX_FILTER_ADD";
case IONIC_CMD_RX_FILTER_DEL:
return "IONIC_CMD_RX_FILTER_DEL";
case IONIC_CMD_Q_IDENTIFY:
return "IONIC_CMD_Q_IDENTIFY";
case IONIC_CMD_Q_INIT:
return "IONIC_CMD_Q_INIT";
case IONIC_CMD_Q_CONTROL:
return "IONIC_CMD_Q_CONTROL";
case IONIC_CMD_RDMA_RESET_LIF:
return "IONIC_CMD_RDMA_RESET_LIF";
case IONIC_CMD_RDMA_CREATE_EQ:
return "IONIC_CMD_RDMA_CREATE_EQ";
case IONIC_CMD_RDMA_CREATE_CQ:
return "IONIC_CMD_RDMA_CREATE_CQ";
case IONIC_CMD_RDMA_CREATE_ADMINQ:
return "IONIC_CMD_RDMA_CREATE_ADMINQ";
case IONIC_CMD_FW_DOWNLOAD:
return "IONIC_CMD_FW_DOWNLOAD";
case IONIC_CMD_FW_CONTROL:
return "IONIC_CMD_FW_CONTROL";
case IONIC_CMD_FW_DOWNLOAD_V1:
return "IONIC_CMD_FW_DOWNLOAD_V1";
case IONIC_CMD_FW_CONTROL_V1:
return "IONIC_CMD_FW_CONTROL_V1";
case IONIC_CMD_VF_GETATTR:
return "IONIC_CMD_VF_GETATTR";
case IONIC_CMD_VF_SETATTR:
return "IONIC_CMD_VF_SETATTR";
default:
return "DEVCMD_UNKNOWN";
}
}
static void ionic_adminq_flush(struct ionic_lif *lif)
{
struct ionic_admin_desc_info *desc_info;
struct ionic_admin_cmd *desc;
unsigned long irqflags;
struct ionic_queue *q;
spin_lock_irqsave(&lif->adminq_lock, irqflags);
if (!lif->adminqcq) {
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
return;
}
q = &lif->adminqcq->q;
while (q->tail_idx != q->head_idx) {
desc = &q->adminq[q->tail_idx];
desc_info = &q->admin_info[q->tail_idx];
memset(desc, 0, sizeof(union ionic_adminq_cmd));
desc_info->ctx = NULL;
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
}
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
}
void ionic_adminq_netdev_err_print(struct ionic_lif *lif, u8 opcode,
u8 status, int err)
{
const char *stat_str;
stat_str = (err == -ETIMEDOUT) ? "TIMEOUT" :
ionic_error_to_str(status);
netdev_err(lif->netdev, "%s (%d) failed: %s (%d)\n",
ionic_opcode_to_str(opcode), opcode, stat_str, err);
}
static int ionic_adminq_check_err(struct ionic_lif *lif,
struct ionic_admin_ctx *ctx,
const bool timeout,
const bool do_msg)
{
int err = 0;
if (ctx->comp.comp.status || timeout) {
err = timeout ? -ETIMEDOUT :
ionic_error_to_errno(ctx->comp.comp.status);
if (do_msg)
ionic_adminq_netdev_err_print(lif, ctx->cmd.cmd.opcode,
ctx->comp.comp.status, err);
if (timeout)
ionic_adminq_flush(lif);
}
return err;
}
bool ionic_notifyq_service(struct ionic_cq *cq)
{
struct ionic_deferred_work *work;
union ionic_notifyq_comp *comp;
struct net_device *netdev;
struct ionic_queue *q;
struct ionic_lif *lif;
u64 eid;
comp = &((union ionic_notifyq_comp *)cq->base)[cq->tail_idx];
q = cq->bound_q;
lif = q->admin_info[0].ctx;
netdev = lif->netdev;
eid = le64_to_cpu(comp->event.eid);
/* Have we run out of new completions to process? */
if ((s64)(eid - lif->last_eid) <= 0)
return false;
lif->last_eid = eid;
dev_dbg(lif->ionic->dev, "notifyq event:\n");
dynamic_hex_dump("event ", DUMP_PREFIX_OFFSET, 16, 1,
comp, sizeof(*comp), true);
switch (le16_to_cpu(comp->event.ecode)) {
case IONIC_EVENT_LINK_CHANGE:
ionic_link_status_check_request(lif, CAN_NOT_SLEEP);
break;
case IONIC_EVENT_RESET:
if (lif->ionic->idev.fw_status_ready &&
!test_bit(IONIC_LIF_F_FW_RESET, lif->state) &&
!test_and_set_bit(IONIC_LIF_F_FW_STOPPING, lif->state)) {
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work) {
netdev_err(lif->netdev, "Reset event dropped\n");
clear_bit(IONIC_LIF_F_FW_STOPPING, lif->state);
} else {
work->type = IONIC_DW_TYPE_LIF_RESET;
ionic_lif_deferred_enqueue(lif, work);
}
}
break;
default:
netdev_warn(netdev, "Notifyq event ecode=%d eid=%lld\n",
comp->event.ecode, eid);
break;
}
return true;
}
bool ionic_adminq_service(struct ionic_cq *cq)
{
struct ionic_admin_desc_info *desc_info;
struct ionic_queue *q = cq->bound_q;
struct ionic_admin_comp *comp;
u16 index;
comp = &((struct ionic_admin_comp *)cq->base)[cq->tail_idx];
if (!color_match(comp->color, cq->done_color))
return false;
/* check for empty queue */
if (q->tail_idx == q->head_idx)
return false;
do {
desc_info = &q->admin_info[q->tail_idx];
index = q->tail_idx;
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
if (likely(desc_info->ctx)) {
struct ionic_admin_ctx *ctx = desc_info->ctx;
memcpy(&ctx->comp, comp, sizeof(*comp));
dev_dbg(q->dev, "comp admin queue command:\n");
dynamic_hex_dump("comp ", DUMP_PREFIX_OFFSET, 16, 1,
&ctx->comp, sizeof(ctx->comp), true);
complete_all(&ctx->work);
desc_info->ctx = NULL;
}
} while (index != le16_to_cpu(comp->comp_index));
return true;
}
bool ionic_adminq_poke_doorbell(struct ionic_queue *q)
{
struct ionic_lif *lif = q->lif;
unsigned long now, then, dif;
unsigned long irqflags;
spin_lock_irqsave(&lif->adminq_lock, irqflags);
if (q->tail_idx == q->head_idx) {
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
return false;
}
now = READ_ONCE(jiffies);
then = q->dbell_jiffies;
dif = now - then;
if (dif > q->dbell_deadline) {
ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type,
q->dbval | q->head_idx);
q->dbell_jiffies = now;
}
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
return true;
}
int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
{
struct ionic_admin_desc_info *desc_info;
struct ionic_admin_cmd *desc;
unsigned long irqflags;
struct ionic_queue *q;
int err = 0;
spin_lock_irqsave(&lif->adminq_lock, irqflags);
if (!lif->adminqcq) {
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
return -EIO;
}
q = &lif->adminqcq->q;
if (!ionic_q_has_space(q, 1)) {
err = -ENOSPC;
goto err_out;
}
err = ionic_heartbeat_check(lif->ionic);
if (err)
goto err_out;
desc_info = &q->admin_info[q->head_idx];
desc_info->ctx = ctx;
desc = &q->adminq[q->head_idx];
memcpy(desc, &ctx->cmd, sizeof(ctx->cmd));
dev_dbg(&lif->netdev->dev, "post admin queue command:\n");
dynamic_hex_dump("cmd ", DUMP_PREFIX_OFFSET, 16, 1,
&ctx->cmd, sizeof(ctx->cmd), true);
ionic_q_post(q, true);
err_out:
spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
return err;
}
int ionic_adminq_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx,
const int err, const bool do_msg)
{
struct net_device *netdev = lif->netdev;
unsigned long time_limit;
unsigned long time_start;
unsigned long time_done;
unsigned long remaining;
const char *name;
name = ionic_opcode_to_str(ctx->cmd.cmd.opcode);
if (err) {
if (do_msg && !test_bit(IONIC_LIF_F_FW_RESET, lif->state))
netdev_err(netdev, "Posting of %s (%d) failed: %d\n",
name, ctx->cmd.cmd.opcode, err);
ctx->comp.comp.status = IONIC_RC_ERROR;
return err;
}
time_start = jiffies;
time_limit = time_start + HZ * (ulong)DEVCMD_TIMEOUT;
do {
remaining = wait_for_completion_timeout(&ctx->work,
IONIC_ADMINQ_TIME_SLICE);
/* check for done */
if (remaining)
break;
/* force a check of FW status and break out if FW reset */
ionic_heartbeat_check(lif->ionic);
if ((test_bit(IONIC_LIF_F_FW_RESET, lif->state) &&
!lif->ionic->idev.fw_status_ready) ||
test_bit(IONIC_LIF_F_FW_STOPPING, lif->state)) {
if (do_msg)
netdev_warn(netdev, "%s (%d) interrupted, FW in reset\n",
name, ctx->cmd.cmd.opcode);
ctx->comp.comp.status = IONIC_RC_ERROR;
return -ENXIO;
}
} while (time_before(jiffies, time_limit));
time_done = jiffies;
dev_dbg(lif->ionic->dev, "%s: elapsed %d msecs\n",
__func__, jiffies_to_msecs(time_done - time_start));
return ionic_adminq_check_err(lif, ctx,
time_after_eq(time_done, time_limit),
do_msg);
}
static int __ionic_adminq_post_wait(struct ionic_lif *lif,
struct ionic_admin_ctx *ctx,
const bool do_msg)
{
int err;
if (!ionic_is_fw_running(&lif->ionic->idev))
return 0;
err = ionic_adminq_post(lif, ctx);
return ionic_adminq_wait(lif, ctx, err, do_msg);
}
int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
{
return __ionic_adminq_post_wait(lif, ctx, true);
}
int ionic_adminq_post_wait_nomsg(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
{
return __ionic_adminq_post_wait(lif, ctx, false);
}
static void ionic_dev_cmd_clean(struct ionic *ionic)
{
struct ionic_dev *idev = &ionic->idev;
if (!idev->dev_cmd_regs)
return;
iowrite32(0, &idev->dev_cmd_regs->doorbell);
memset_io(&idev->dev_cmd_regs->cmd, 0, sizeof(idev->dev_cmd_regs->cmd));
}
void ionic_dev_cmd_dev_err_print(struct ionic *ionic, u8 opcode, u8 status,
int err)
{
const char *stat_str;
stat_str = (err == -ETIMEDOUT) ? "TIMEOUT" :
ionic_error_to_str(status);
dev_err(ionic->dev, "DEV_CMD %s (%d) error, %s (%d) failed\n",
ionic_opcode_to_str(opcode), opcode, stat_str, err);
}
static int __ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds,
const bool do_msg)
{
struct ionic_dev *idev = &ionic->idev;
unsigned long start_time;
unsigned long max_wait;
unsigned long duration;
int done = 0;
bool fw_up;
int opcode;
int err;
/* Wait for dev cmd to complete, retrying if we get EAGAIN,
* but don't wait any longer than max_seconds.
*/
max_wait = jiffies + (max_seconds * HZ);
try_again:
opcode = idev->opcode;
start_time = jiffies;
for (fw_up = ionic_is_fw_running(idev);
!done && fw_up && time_before(jiffies, max_wait);
fw_up = ionic_is_fw_running(idev)) {
done = ionic_dev_cmd_done(idev);
if (done)
break;
usleep_range(100, 200);
}
duration = jiffies - start_time;
dev_dbg(ionic->dev, "DEVCMD %s (%d) done=%d took %ld secs (%ld jiffies)\n",
ionic_opcode_to_str(opcode), opcode,
done, duration / HZ, duration);
if (!done && !fw_up) {
ionic_dev_cmd_clean(ionic);
dev_warn(ionic->dev, "DEVCMD %s (%d) interrupted - FW is down\n",
ionic_opcode_to_str(opcode), opcode);
return -ENXIO;
}
if (!done && !time_before(jiffies, max_wait)) {
ionic_dev_cmd_clean(ionic);
dev_warn(ionic->dev, "DEVCMD %s (%d) timeout after %ld secs\n",
ionic_opcode_to_str(opcode), opcode, max_seconds);
return -ETIMEDOUT;
}
err = ionic_dev_cmd_status(&ionic->idev);
if (err) {
if (err == IONIC_RC_EAGAIN &&
time_before(jiffies, (max_wait - HZ))) {
dev_dbg(ionic->dev, "DEV_CMD %s (%d), %s (%d) retrying...\n",
ionic_opcode_to_str(opcode), opcode,
ionic_error_to_str(err), err);
iowrite32(0, &idev->dev_cmd_regs->done);
msleep(1000);
iowrite32(1, &idev->dev_cmd_regs->doorbell);
goto try_again;
}
if (!(opcode == IONIC_CMD_FW_CONTROL && err == IONIC_RC_EAGAIN))
if (do_msg)
ionic_dev_cmd_dev_err_print(ionic, opcode, err,
ionic_error_to_errno(err));
return ionic_error_to_errno(err);
}
ionic_dev_cmd_clean(ionic);
return 0;
}
int ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds)
{
return __ionic_dev_cmd_wait(ionic, max_seconds, true);
}
int ionic_dev_cmd_wait_nomsg(struct ionic *ionic, unsigned long max_seconds)
{
return __ionic_dev_cmd_wait(ionic, max_seconds, false);
}
int ionic_setup(struct ionic *ionic)
{
int err;
err = ionic_dev_setup(ionic);
if (err)
return err;
ionic_reset(ionic);
return 0;
}
int ionic_identify(struct ionic *ionic)
{
struct ionic_identity *ident = &ionic->ident;
struct ionic_dev *idev = &ionic->idev;
size_t sz;
int err;
memset(ident, 0, sizeof(*ident));
ident->drv.os_type = cpu_to_le32(IONIC_OS_TYPE_LINUX);
strscpy(ident->drv.driver_ver_str, UTS_RELEASE,
sizeof(ident->drv.driver_ver_str));
mutex_lock(&ionic->dev_cmd_lock);
sz = min(sizeof(ident->drv), sizeof(idev->dev_cmd_regs->data));
memcpy_toio(&idev->dev_cmd_regs->data, &ident->drv, sz);
ionic_dev_cmd_identify(idev, IONIC_DEV_IDENTITY_VERSION_2);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
if (!err) {
sz = min(sizeof(ident->dev), sizeof(idev->dev_cmd_regs->data));
memcpy_fromio(&ident->dev, &idev->dev_cmd_regs->data, sz);
}
mutex_unlock(&ionic->dev_cmd_lock);
if (err) {
dev_err(ionic->dev, "Cannot identify ionic: %d\n", err);
goto err_out;
}
if (isprint(idev->dev_info.fw_version[0]) &&
isascii(idev->dev_info.fw_version[0]))
dev_info(ionic->dev, "FW: %.*s\n",
(int)(sizeof(idev->dev_info.fw_version) - 1),
idev->dev_info.fw_version);
else
dev_info(ionic->dev, "FW: (invalid string) 0x%02x 0x%02x 0x%02x 0x%02x ...\n",
(u8)idev->dev_info.fw_version[0],
(u8)idev->dev_info.fw_version[1],
(u8)idev->dev_info.fw_version[2],
(u8)idev->dev_info.fw_version[3]);
err = ionic_lif_identify(ionic, IONIC_LIF_TYPE_CLASSIC,
&ionic->ident.lif);
if (err) {
dev_err(ionic->dev, "Cannot identify LIFs: %d\n", err);
goto err_out;
}
return 0;
err_out:
return err;
}
int ionic_init(struct ionic *ionic)
{
struct ionic_dev *idev = &ionic->idev;
int err;
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_init(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
return err;
}
int ionic_reset(struct ionic *ionic)
{
struct ionic_dev *idev = &ionic->idev;
int err;
if (!ionic_is_fw_running(idev))
return 0;
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_reset(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
return err;
}
int ionic_port_identify(struct ionic *ionic)
{
struct ionic_identity *ident = &ionic->ident;
struct ionic_dev *idev = &ionic->idev;
size_t sz;
int err;
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_port_identify(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
if (!err) {
sz = min(sizeof(ident->port), sizeof(idev->dev_cmd_regs->data));
memcpy_fromio(&ident->port, &idev->dev_cmd_regs->data, sz);
}
mutex_unlock(&ionic->dev_cmd_lock);
return err;
}
int ionic_port_init(struct ionic *ionic)
{
struct ionic_identity *ident = &ionic->ident;
struct ionic_dev *idev = &ionic->idev;
size_t sz;
int err;
if (!idev->port_info) {
idev->port_info_sz = ALIGN(sizeof(*idev->port_info), PAGE_SIZE);
idev->port_info = dma_alloc_coherent(ionic->dev,
idev->port_info_sz,
&idev->port_info_pa,
GFP_KERNEL);
if (!idev->port_info)
return -ENOMEM;
}
sz = min(sizeof(ident->port.config), sizeof(idev->dev_cmd_regs->data));
mutex_lock(&ionic->dev_cmd_lock);
memcpy_toio(&idev->dev_cmd_regs->data, &ident->port.config, sz);
ionic_dev_cmd_port_init(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP);
ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
if (err) {
dev_err(ionic->dev, "Failed to init port\n");
dma_free_coherent(ionic->dev, idev->port_info_sz,
idev->port_info, idev->port_info_pa);
idev->port_info = NULL;
idev->port_info_pa = 0;
}
return err;
}
int ionic_port_reset(struct ionic *ionic)
{
struct ionic_dev *idev = &ionic->idev;
int err = 0;
if (!idev->port_info)
return 0;
if (ionic_is_fw_running(idev)) {
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_port_reset(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
}
dma_free_coherent(ionic->dev, idev->port_info_sz,
idev->port_info, idev->port_info_pa);
idev->port_info = NULL;
idev->port_info_pa = 0;
return err;
}
static int __init ionic_init_module(void)
{
int ret;
ionic_debugfs_create();
ret = ionic_bus_register_driver();
if (ret)
ionic_debugfs_destroy();
return ret;
}
static void __exit ionic_cleanup_module(void)
{
ionic_bus_unregister_driver();
ionic_debugfs_destroy();
pr_info("%s removed\n", IONIC_DRV_NAME);
}
module_init(ionic_init_module);
module_exit(ionic_cleanup_module);
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