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linux/drivers/net/ethernet/qlogic/qed/qed_mcp.c
sudarsana.kalluru@cavium.com f470f22cfa qed: Add support for MFW resource locking. 
The patch adds API for default initialization of the MFW resource
locking.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-27 16:51:33 -04:00

2648 lines
71 KiB
C
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/* QLogic qed NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed 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, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and /or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/etherdevice.h>
#include "qed.h"
#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"
#include "qed_sriov.h"
#define CHIP_MCP_RESP_ITER_US 10
#define QED_DRV_MB_MAX_RETRIES (500 * 1000) /* Account for 5 sec */
#define QED_MCP_RESET_RETRIES (50 * 1000) /* Account for 500 msec */
#define DRV_INNER_WR(_p_hwfn, _p_ptt, _ptr, _offset, _val) \
qed_wr(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset), \
_val)
#define DRV_INNER_RD(_p_hwfn, _p_ptt, _ptr, _offset) \
qed_rd(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset))
#define DRV_MB_WR(_p_hwfn, _p_ptt, _field, _val) \
DRV_INNER_WR(p_hwfn, _p_ptt, drv_mb_addr, \
offsetof(struct public_drv_mb, _field), _val)
#define DRV_MB_RD(_p_hwfn, _p_ptt, _field) \
DRV_INNER_RD(_p_hwfn, _p_ptt, drv_mb_addr, \
offsetof(struct public_drv_mb, _field))
#define PDA_COMP (((FW_MAJOR_VERSION) + (FW_MINOR_VERSION << 8)) << \
DRV_ID_PDA_COMP_VER_SHIFT)
#define MCP_BYTES_PER_MBIT_SHIFT 17
bool qed_mcp_is_init(struct qed_hwfn *p_hwfn)
{
if (!p_hwfn->mcp_info || !p_hwfn->mcp_info->public_base)
return false;
return true;
}
void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
PUBLIC_PORT);
u32 mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, addr);
p_hwfn->mcp_info->port_addr = SECTION_ADDR(mfw_mb_offsize,
MFW_PORT(p_hwfn));
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"port_addr = 0x%x, port_id 0x%02x\n",
p_hwfn->mcp_info->port_addr, MFW_PORT(p_hwfn));
}
void qed_mcp_read_mb(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 length = MFW_DRV_MSG_MAX_DWORDS(p_hwfn->mcp_info->mfw_mb_length);
u32 tmp, i;
if (!p_hwfn->mcp_info->public_base)
return;
for (i = 0; i < length; i++) {
tmp = qed_rd(p_hwfn, p_ptt,
p_hwfn->mcp_info->mfw_mb_addr +
(i << 2) + sizeof(u32));
/* The MB data is actually BE; Need to force it to cpu */
((u32 *)p_hwfn->mcp_info->mfw_mb_cur)[i] =
be32_to_cpu((__force __be32)tmp);
}
}
struct qed_mcp_cmd_elem {
struct list_head list;
struct qed_mcp_mb_params *p_mb_params;
u16 expected_seq_num;
bool b_is_completed;
};
/* Must be called while cmd_lock is acquired */
static struct qed_mcp_cmd_elem *
qed_mcp_cmd_add_elem(struct qed_hwfn *p_hwfn,
struct qed_mcp_mb_params *p_mb_params,
u16 expected_seq_num)
{
struct qed_mcp_cmd_elem *p_cmd_elem = NULL;
p_cmd_elem = kzalloc(sizeof(*p_cmd_elem), GFP_ATOMIC);
if (!p_cmd_elem)
goto out;
p_cmd_elem->p_mb_params = p_mb_params;
p_cmd_elem->expected_seq_num = expected_seq_num;
list_add(&p_cmd_elem->list, &p_hwfn->mcp_info->cmd_list);
out:
return p_cmd_elem;
}
/* Must be called while cmd_lock is acquired */
static void qed_mcp_cmd_del_elem(struct qed_hwfn *p_hwfn,
struct qed_mcp_cmd_elem *p_cmd_elem)
{
list_del(&p_cmd_elem->list);
kfree(p_cmd_elem);
}
/* Must be called while cmd_lock is acquired */
static struct qed_mcp_cmd_elem *qed_mcp_cmd_get_elem(struct qed_hwfn *p_hwfn,
u16 seq_num)
{
struct qed_mcp_cmd_elem *p_cmd_elem = NULL;
list_for_each_entry(p_cmd_elem, &p_hwfn->mcp_info->cmd_list, list) {
if (p_cmd_elem->expected_seq_num == seq_num)
return p_cmd_elem;
}
return NULL;
}
int qed_mcp_free(struct qed_hwfn *p_hwfn)
{
if (p_hwfn->mcp_info) {
struct qed_mcp_cmd_elem *p_cmd_elem, *p_tmp;
kfree(p_hwfn->mcp_info->mfw_mb_cur);
kfree(p_hwfn->mcp_info->mfw_mb_shadow);
spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
list_for_each_entry_safe(p_cmd_elem,
p_tmp,
&p_hwfn->mcp_info->cmd_list, list) {
qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
}
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
}
kfree(p_hwfn->mcp_info);
return 0;
}
static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_mcp_info *p_info = p_hwfn->mcp_info;
u32 drv_mb_offsize, mfw_mb_offsize;
u32 mcp_pf_id = MCP_PF_ID(p_hwfn);
p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
if (!p_info->public_base)
return 0;
p_info->public_base |= GRCBASE_MCP;
/* Calculate the driver and MFW mailbox address */
drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
SECTION_OFFSIZE_ADDR(p_info->public_base,
PUBLIC_DRV_MB));
p_info->drv_mb_addr = SECTION_ADDR(drv_mb_offsize, mcp_pf_id);
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);
/* Set the MFW MB address */
mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
SECTION_OFFSIZE_ADDR(p_info->public_base,
PUBLIC_MFW_MB));
p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);
/* Get the current driver mailbox sequence before sending
* the first command
*/
p_info->drv_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
DRV_MSG_SEQ_NUMBER_MASK;
/* Get current FW pulse sequence */
p_info->drv_pulse_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_pulse_mb) &
DRV_PULSE_SEQ_MASK;
p_info->mcp_hist = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
return 0;
}
int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_mcp_info *p_info;
u32 size;
/* Allocate mcp_info structure */
p_hwfn->mcp_info = kzalloc(sizeof(*p_hwfn->mcp_info), GFP_KERNEL);
if (!p_hwfn->mcp_info)
goto err;
p_info = p_hwfn->mcp_info;
/* Initialize the MFW spinlock */
spin_lock_init(&p_info->cmd_lock);
spin_lock_init(&p_info->link_lock);
INIT_LIST_HEAD(&p_info->cmd_list);
if (qed_load_mcp_offsets(p_hwfn, p_ptt) != 0) {
DP_NOTICE(p_hwfn, "MCP is not initialized\n");
/* Do not free mcp_info here, since public_base indicate that
* the MCP is not initialized
*/
return 0;
}
size = MFW_DRV_MSG_MAX_DWORDS(p_info->mfw_mb_length) * sizeof(u32);
p_info->mfw_mb_cur = kzalloc(size, GFP_KERNEL);
p_info->mfw_mb_shadow = kzalloc(size, GFP_KERNEL);
if (!p_info->mfw_mb_shadow || !p_info->mfw_mb_addr)
goto err;
return 0;
err:
qed_mcp_free(p_hwfn);
return -ENOMEM;
}
static void qed_mcp_reread_offsets(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
u32 generic_por_0 = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
/* Use MCP history register to check if MCP reset occurred between init
* time and now.
*/
if (p_hwfn->mcp_info->mcp_hist != generic_por_0) {
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Rereading MCP offsets [mcp_hist 0x%08x, generic_por_0 0x%08x]\n",
p_hwfn->mcp_info->mcp_hist, generic_por_0);
qed_load_mcp_offsets(p_hwfn, p_ptt);
qed_mcp_cmd_port_init(p_hwfn, p_ptt);
}
}
int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 org_mcp_reset_seq, seq, delay = CHIP_MCP_RESP_ITER_US, cnt = 0;
int rc = 0;
/* Ensure that only a single thread is accessing the mailbox */
spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
org_mcp_reset_seq = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
/* Set drv command along with the updated sequence */
qed_mcp_reread_offsets(p_hwfn, p_ptt);
seq = ++p_hwfn->mcp_info->drv_mb_seq;
DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (DRV_MSG_CODE_MCP_RESET | seq));
do {
/* Wait for MFW response */
udelay(delay);
/* Give the FW up to 500 second (50*1000*10usec) */
} while ((org_mcp_reset_seq == qed_rd(p_hwfn, p_ptt,
MISCS_REG_GENERIC_POR_0)) &&
(cnt++ < QED_MCP_RESET_RETRIES));
if (org_mcp_reset_seq !=
qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"MCP was reset after %d usec\n", cnt * delay);
} else {
DP_ERR(p_hwfn, "Failed to reset MCP\n");
rc = -EAGAIN;
}
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
return rc;
}
/* Must be called while cmd_lock is acquired */
static bool qed_mcp_has_pending_cmd(struct qed_hwfn *p_hwfn)
{
struct qed_mcp_cmd_elem *p_cmd_elem;
/* There is at most one pending command at a certain time, and if it
* exists - it is placed at the HEAD of the list.
*/
if (!list_empty(&p_hwfn->mcp_info->cmd_list)) {
p_cmd_elem = list_first_entry(&p_hwfn->mcp_info->cmd_list,
struct qed_mcp_cmd_elem, list);
return !p_cmd_elem->b_is_completed;
}
return false;
}
/* Must be called while cmd_lock is acquired */
static int
qed_mcp_update_pending_cmd(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_mcp_mb_params *p_mb_params;
struct qed_mcp_cmd_elem *p_cmd_elem;
u32 mcp_resp;
u16 seq_num;
mcp_resp = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_header);
seq_num = (u16)(mcp_resp & FW_MSG_SEQ_NUMBER_MASK);
/* Return if no new non-handled response has been received */
if (seq_num != p_hwfn->mcp_info->drv_mb_seq)
return -EAGAIN;
p_cmd_elem = qed_mcp_cmd_get_elem(p_hwfn, seq_num);
if (!p_cmd_elem) {
DP_ERR(p_hwfn,
"Failed to find a pending mailbox cmd that expects sequence number %d\n",
seq_num);
return -EINVAL;
}
p_mb_params = p_cmd_elem->p_mb_params;
/* Get the MFW response along with the sequence number */
p_mb_params->mcp_resp = mcp_resp;
/* Get the MFW param */
p_mb_params->mcp_param = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_param);
/* Get the union data */
if (p_mb_params->p_data_dst != NULL && p_mb_params->data_dst_size) {
u32 union_data_addr = p_hwfn->mcp_info->drv_mb_addr +
offsetof(struct public_drv_mb,
union_data);
qed_memcpy_from(p_hwfn, p_ptt, p_mb_params->p_data_dst,
union_data_addr, p_mb_params->data_dst_size);
}
p_cmd_elem->b_is_completed = true;
return 0;
}
/* Must be called while cmd_lock is acquired */
static void __qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_mcp_mb_params *p_mb_params,
u16 seq_num)
{
union drv_union_data union_data;
u32 union_data_addr;
/* Set the union data */
union_data_addr = p_hwfn->mcp_info->drv_mb_addr +
offsetof(struct public_drv_mb, union_data);
memset(&union_data, 0, sizeof(union_data));
if (p_mb_params->p_data_src != NULL && p_mb_params->data_src_size)
memcpy(&union_data, p_mb_params->p_data_src,
p_mb_params->data_src_size);
qed_memcpy_to(p_hwfn, p_ptt, union_data_addr, &union_data,
sizeof(union_data));
/* Set the drv param */
DRV_MB_WR(p_hwfn, p_ptt, drv_mb_param, p_mb_params->param);
/* Set the drv command along with the sequence number */
DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (p_mb_params->cmd | seq_num));
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"MFW mailbox: command 0x%08x param 0x%08x\n",
(p_mb_params->cmd | seq_num), p_mb_params->param);
}
static int
_qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_mcp_mb_params *p_mb_params,
u32 max_retries, u32 delay)
{
struct qed_mcp_cmd_elem *p_cmd_elem;
u32 cnt = 0;
u16 seq_num;
int rc = 0;
/* Wait until the mailbox is non-occupied */
do {
/* Exit the loop if there is no pending command, or if the
* pending command is completed during this iteration.
* The spinlock stays locked until the command is sent.
*/
spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
if (!qed_mcp_has_pending_cmd(p_hwfn))
break;
rc = qed_mcp_update_pending_cmd(p_hwfn, p_ptt);
if (!rc)
break;
else if (rc != -EAGAIN)
goto err;
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
udelay(delay);
} while (++cnt < max_retries);
if (cnt >= max_retries) {
DP_NOTICE(p_hwfn,
"The MFW mailbox is occupied by an uncompleted command. Failed to send command 0x%08x [param 0x%08x].\n",
p_mb_params->cmd, p_mb_params->param);
return -EAGAIN;
}
/* Send the mailbox command */
qed_mcp_reread_offsets(p_hwfn, p_ptt);
seq_num = ++p_hwfn->mcp_info->drv_mb_seq;
p_cmd_elem = qed_mcp_cmd_add_elem(p_hwfn, p_mb_params, seq_num);
if (!p_cmd_elem) {
rc = -ENOMEM;
goto err;
}
__qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, seq_num);
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
/* Wait for the MFW response */
do {
/* Exit the loop if the command is already completed, or if the
* command is completed during this iteration.
* The spinlock stays locked until the list element is removed.
*/
udelay(delay);
spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
if (p_cmd_elem->b_is_completed)
break;
rc = qed_mcp_update_pending_cmd(p_hwfn, p_ptt);
if (!rc)
break;
else if (rc != -EAGAIN)
goto err;
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
} while (++cnt < max_retries);
if (cnt >= max_retries) {
DP_NOTICE(p_hwfn,
"The MFW failed to respond to command 0x%08x [param 0x%08x].\n",
p_mb_params->cmd, p_mb_params->param);
spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
return -EAGAIN;
}
qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"MFW mailbox: response 0x%08x param 0x%08x [after %d.%03d ms]\n",
p_mb_params->mcp_resp,
p_mb_params->mcp_param,
(cnt * delay) / 1000, (cnt * delay) % 1000);
/* Clear the sequence number from the MFW response */
p_mb_params->mcp_resp &= FW_MSG_CODE_MASK;
return 0;
err:
spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
return rc;
}
static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_mcp_mb_params *p_mb_params)
{
size_t union_data_size = sizeof(union drv_union_data);
u32 max_retries = QED_DRV_MB_MAX_RETRIES;
u32 delay = CHIP_MCP_RESP_ITER_US;
/* MCP not initialized */
if (!qed_mcp_is_init(p_hwfn)) {
DP_NOTICE(p_hwfn, "MFW is not initialized!\n");
return -EBUSY;
}
if (p_mb_params->data_src_size > union_data_size ||
p_mb_params->data_dst_size > union_data_size) {
DP_ERR(p_hwfn,
"The provided size is larger than the union data size [src_size %u, dst_size %u, union_data_size %zu]\n",
p_mb_params->data_src_size,
p_mb_params->data_dst_size, union_data_size);
return -EINVAL;
}
return _qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, max_retries,
delay);
}
int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 cmd,
u32 param,
u32 *o_mcp_resp,
u32 *o_mcp_param)
{
struct qed_mcp_mb_params mb_params;
int rc;
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = cmd;
mb_params.param = param;
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc)
return rc;
*o_mcp_resp = mb_params.mcp_resp;
*o_mcp_param = mb_params.mcp_param;
return 0;
}
int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 cmd,
u32 param,
u32 *o_mcp_resp,
u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf)
{
struct qed_mcp_mb_params mb_params;
u8 raw_data[MCP_DRV_NVM_BUF_LEN];
int rc;
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = cmd;
mb_params.param = param;
mb_params.p_data_dst = raw_data;
/* Use the maximal value since the actual one is part of the response */
mb_params.data_dst_size = MCP_DRV_NVM_BUF_LEN;
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc)
return rc;
*o_mcp_resp = mb_params.mcp_resp;
*o_mcp_param = mb_params.mcp_param;
*o_txn_size = *o_mcp_param;
memcpy(o_buf, raw_data, *o_txn_size);
return 0;
}
static bool
qed_mcp_can_force_load(u8 drv_role,
u8 exist_drv_role,
enum qed_override_force_load override_force_load)
{
bool can_force_load = false;
switch (override_force_load) {
case QED_OVERRIDE_FORCE_LOAD_ALWAYS:
can_force_load = true;
break;
case QED_OVERRIDE_FORCE_LOAD_NEVER:
can_force_load = false;
break;
default:
can_force_load = (drv_role == DRV_ROLE_OS &&
exist_drv_role == DRV_ROLE_PREBOOT) ||
(drv_role == DRV_ROLE_KDUMP &&
exist_drv_role == DRV_ROLE_OS);
break;
}
return can_force_load;
}
static int qed_mcp_cancel_load_req(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CANCEL_LOAD_REQ, 0,
&resp, &param);
if (rc)
DP_NOTICE(p_hwfn,
"Failed to send cancel load request, rc = %d\n", rc);
return rc;
}
#define CONFIG_QEDE_BITMAP_IDX BIT(0)
#define CONFIG_QED_SRIOV_BITMAP_IDX BIT(1)
#define CONFIG_QEDR_BITMAP_IDX BIT(2)
#define CONFIG_QEDF_BITMAP_IDX BIT(4)
#define CONFIG_QEDI_BITMAP_IDX BIT(5)
#define CONFIG_QED_LL2_BITMAP_IDX BIT(6)
static u32 qed_get_config_bitmap(void)
{
u32 config_bitmap = 0x0;
if (IS_ENABLED(CONFIG_QEDE))
config_bitmap |= CONFIG_QEDE_BITMAP_IDX;
if (IS_ENABLED(CONFIG_QED_SRIOV))
config_bitmap |= CONFIG_QED_SRIOV_BITMAP_IDX;
if (IS_ENABLED(CONFIG_QED_RDMA))
config_bitmap |= CONFIG_QEDR_BITMAP_IDX;
if (IS_ENABLED(CONFIG_QED_FCOE))
config_bitmap |= CONFIG_QEDF_BITMAP_IDX;
if (IS_ENABLED(CONFIG_QED_ISCSI))
config_bitmap |= CONFIG_QEDI_BITMAP_IDX;
if (IS_ENABLED(CONFIG_QED_LL2))
config_bitmap |= CONFIG_QED_LL2_BITMAP_IDX;
return config_bitmap;
}
struct qed_load_req_in_params {
u8 hsi_ver;
#define QED_LOAD_REQ_HSI_VER_DEFAULT 0
#define QED_LOAD_REQ_HSI_VER_1 1
u32 drv_ver_0;
u32 drv_ver_1;
u32 fw_ver;
u8 drv_role;
u8 timeout_val;
u8 force_cmd;
bool avoid_eng_reset;
};
struct qed_load_req_out_params {
u32 load_code;
u32 exist_drv_ver_0;
u32 exist_drv_ver_1;
u32 exist_fw_ver;
u8 exist_drv_role;
u8 mfw_hsi_ver;
bool drv_exists;
};
static int
__qed_mcp_load_req(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_load_req_in_params *p_in_params,
struct qed_load_req_out_params *p_out_params)
{
struct qed_mcp_mb_params mb_params;
struct load_req_stc load_req;
struct load_rsp_stc load_rsp;
u32 hsi_ver;
int rc;
memset(&load_req, 0, sizeof(load_req));
load_req.drv_ver_0 = p_in_params->drv_ver_0;
load_req.drv_ver_1 = p_in_params->drv_ver_1;
load_req.fw_ver = p_in_params->fw_ver;
QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_ROLE, p_in_params->drv_role);
QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_LOCK_TO,
p_in_params->timeout_val);
QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_FORCE,
p_in_params->force_cmd);
QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_FLAGS0,
p_in_params->avoid_eng_reset);
hsi_ver = (p_in_params->hsi_ver == QED_LOAD_REQ_HSI_VER_DEFAULT) ?
DRV_ID_MCP_HSI_VER_CURRENT :
(p_in_params->hsi_ver << DRV_ID_MCP_HSI_VER_SHIFT);
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_LOAD_REQ;
mb_params.param = PDA_COMP | hsi_ver | p_hwfn->cdev->drv_type;
mb_params.p_data_src = &load_req;
mb_params.data_src_size = sizeof(load_req);
mb_params.p_data_dst = &load_rsp;
mb_params.data_dst_size = sizeof(load_rsp);
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Load Request: param 0x%08x [init_hw %d, drv_type %d, hsi_ver %d, pda 0x%04x]\n",
mb_params.param,
QED_MFW_GET_FIELD(mb_params.param, DRV_ID_DRV_INIT_HW),
QED_MFW_GET_FIELD(mb_params.param, DRV_ID_DRV_TYPE),
QED_MFW_GET_FIELD(mb_params.param, DRV_ID_MCP_HSI_VER),
QED_MFW_GET_FIELD(mb_params.param, DRV_ID_PDA_COMP_VER));
if (p_in_params->hsi_ver != QED_LOAD_REQ_HSI_VER_1) {
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Load Request: drv_ver 0x%08x_0x%08x, fw_ver 0x%08x, misc0 0x%08x [role %d, timeout %d, force %d, flags0 0x%x]\n",
load_req.drv_ver_0,
load_req.drv_ver_1,
load_req.fw_ver,
load_req.misc0,
QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_ROLE),
QED_MFW_GET_FIELD(load_req.misc0,
LOAD_REQ_LOCK_TO),
QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_FORCE),
QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_FLAGS0));
}
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc) {
DP_NOTICE(p_hwfn, "Failed to send load request, rc = %d\n", rc);
return rc;
}
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Load Response: resp 0x%08x\n", mb_params.mcp_resp);
p_out_params->load_code = mb_params.mcp_resp;
if (p_in_params->hsi_ver != QED_LOAD_REQ_HSI_VER_1 &&
p_out_params->load_code != FW_MSG_CODE_DRV_LOAD_REFUSED_HSI_1) {
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Load Response: exist_drv_ver 0x%08x_0x%08x, exist_fw_ver 0x%08x, misc0 0x%08x [exist_role %d, mfw_hsi %d, flags0 0x%x]\n",
load_rsp.drv_ver_0,
load_rsp.drv_ver_1,
load_rsp.fw_ver,
load_rsp.misc0,
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_ROLE),
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_HSI),
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_FLAGS0));
p_out_params->exist_drv_ver_0 = load_rsp.drv_ver_0;
p_out_params->exist_drv_ver_1 = load_rsp.drv_ver_1;
p_out_params->exist_fw_ver = load_rsp.fw_ver;
p_out_params->exist_drv_role =
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_ROLE);
p_out_params->mfw_hsi_ver =
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_HSI);
p_out_params->drv_exists =
QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_FLAGS0) &
LOAD_RSP_FLAGS0_DRV_EXISTS;
}
return 0;
}
static int eocre_get_mfw_drv_role(struct qed_hwfn *p_hwfn,
enum qed_drv_role drv_role,
u8 *p_mfw_drv_role)
{
switch (drv_role) {
case QED_DRV_ROLE_OS:
*p_mfw_drv_role = DRV_ROLE_OS;
break;
case QED_DRV_ROLE_KDUMP:
*p_mfw_drv_role = DRV_ROLE_KDUMP;
break;
default:
DP_ERR(p_hwfn, "Unexpected driver role %d\n", drv_role);
return -EINVAL;
}
return 0;
}
enum qed_load_req_force {
QED_LOAD_REQ_FORCE_NONE,
QED_LOAD_REQ_FORCE_PF,
QED_LOAD_REQ_FORCE_ALL,
};
static void qed_get_mfw_force_cmd(struct qed_hwfn *p_hwfn,
enum qed_load_req_force force_cmd,
u8 *p_mfw_force_cmd)
{
switch (force_cmd) {
case QED_LOAD_REQ_FORCE_NONE:
*p_mfw_force_cmd = LOAD_REQ_FORCE_NONE;
break;
case QED_LOAD_REQ_FORCE_PF:
*p_mfw_force_cmd = LOAD_REQ_FORCE_PF;
break;
case QED_LOAD_REQ_FORCE_ALL:
*p_mfw_force_cmd = LOAD_REQ_FORCE_ALL;
break;
}
}
int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_load_req_params *p_params)
{
struct qed_load_req_out_params out_params;
struct qed_load_req_in_params in_params;
u8 mfw_drv_role, mfw_force_cmd;
int rc;
memset(&in_params, 0, sizeof(in_params));
in_params.hsi_ver = QED_LOAD_REQ_HSI_VER_DEFAULT;
in_params.drv_ver_0 = QED_VERSION;
in_params.drv_ver_1 = qed_get_config_bitmap();
in_params.fw_ver = STORM_FW_VERSION;
rc = eocre_get_mfw_drv_role(p_hwfn, p_params->drv_role, &mfw_drv_role);
if (rc)
return rc;
in_params.drv_role = mfw_drv_role;
in_params.timeout_val = p_params->timeout_val;
qed_get_mfw_force_cmd(p_hwfn,
QED_LOAD_REQ_FORCE_NONE, &mfw_force_cmd);
in_params.force_cmd = mfw_force_cmd;
in_params.avoid_eng_reset = p_params->avoid_eng_reset;
memset(&out_params, 0, sizeof(out_params));
rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params, &out_params);
if (rc)
return rc;
/* First handle cases where another load request should/might be sent:
* - MFW expects the old interface [HSI version = 1]
* - MFW responds that a force load request is required
*/
if (out_params.load_code == FW_MSG_CODE_DRV_LOAD_REFUSED_HSI_1) {
DP_INFO(p_hwfn,
"MFW refused a load request due to HSI > 1. Resending with HSI = 1\n");
in_params.hsi_ver = QED_LOAD_REQ_HSI_VER_1;
memset(&out_params, 0, sizeof(out_params));
rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params, &out_params);
if (rc)
return rc;
} else if (out_params.load_code ==
FW_MSG_CODE_DRV_LOAD_REFUSED_REQUIRES_FORCE) {
if (qed_mcp_can_force_load(in_params.drv_role,
out_params.exist_drv_role,
p_params->override_force_load)) {
DP_INFO(p_hwfn,
"A force load is required [{role, fw_ver, drv_ver}: loading={%d, 0x%08x, x%08x_0x%08x}, existing={%d, 0x%08x, 0x%08x_0x%08x}]\n",
in_params.drv_role, in_params.fw_ver,
in_params.drv_ver_0, in_params.drv_ver_1,
out_params.exist_drv_role,
out_params.exist_fw_ver,
out_params.exist_drv_ver_0,
out_params.exist_drv_ver_1);
qed_get_mfw_force_cmd(p_hwfn,
QED_LOAD_REQ_FORCE_ALL,
&mfw_force_cmd);
in_params.force_cmd = mfw_force_cmd;
memset(&out_params, 0, sizeof(out_params));
rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params,
&out_params);
if (rc)
return rc;
} else {
DP_NOTICE(p_hwfn,
"A force load is required [{role, fw_ver, drv_ver}: loading={%d, 0x%08x, x%08x_0x%08x}, existing={%d, 0x%08x, 0x%08x_0x%08x}] - Avoid\n",
in_params.drv_role, in_params.fw_ver,
in_params.drv_ver_0, in_params.drv_ver_1,
out_params.exist_drv_role,
out_params.exist_fw_ver,
out_params.exist_drv_ver_0,
out_params.exist_drv_ver_1);
DP_NOTICE(p_hwfn,
"Avoid sending a force load request to prevent disruption of active PFs\n");
qed_mcp_cancel_load_req(p_hwfn, p_ptt);
return -EBUSY;
}
}
/* Now handle the other types of responses.
* The "REFUSED_HSI_1" and "REFUSED_REQUIRES_FORCE" responses are not
* expected here after the additional revised load requests were sent.
*/
switch (out_params.load_code) {
case FW_MSG_CODE_DRV_LOAD_ENGINE:
case FW_MSG_CODE_DRV_LOAD_PORT:
case FW_MSG_CODE_DRV_LOAD_FUNCTION:
if (out_params.mfw_hsi_ver != QED_LOAD_REQ_HSI_VER_1 &&
out_params.drv_exists) {
/* The role and fw/driver version match, but the PF is
* already loaded and has not been unloaded gracefully.
*/
DP_NOTICE(p_hwfn,
"PF is already loaded\n");
return -EINVAL;
}
break;
default:
DP_NOTICE(p_hwfn,
"Unexpected refusal to load request [resp 0x%08x]. Aborting.\n",
out_params.load_code);
return -EBUSY;
}
p_params->load_code = out_params.load_code;
return 0;
}
int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 wol_param, mcp_resp, mcp_param;
switch (p_hwfn->cdev->wol_config) {
case QED_OV_WOL_DISABLED:
wol_param = DRV_MB_PARAM_UNLOAD_WOL_DISABLED;
break;
case QED_OV_WOL_ENABLED:
wol_param = DRV_MB_PARAM_UNLOAD_WOL_ENABLED;
break;
default:
DP_NOTICE(p_hwfn,
"Unknown WoL configuration %02x\n",
p_hwfn->cdev->wol_config);
/* Fallthrough */
case QED_OV_WOL_DEFAULT:
wol_param = DRV_MB_PARAM_UNLOAD_WOL_MCP;
}
return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_UNLOAD_REQ, wol_param,
&mcp_resp, &mcp_param);
}
int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_mcp_mb_params mb_params;
struct mcp_mac wol_mac;
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_UNLOAD_DONE;
/* Set the primary MAC if WoL is enabled */
if (p_hwfn->cdev->wol_config == QED_OV_WOL_ENABLED) {
u8 *p_mac = p_hwfn->cdev->wol_mac;
memset(&wol_mac, 0, sizeof(wol_mac));
wol_mac.mac_upper = p_mac[0] << 8 | p_mac[1];
wol_mac.mac_lower = p_mac[2] << 24 | p_mac[3] << 16 |
p_mac[4] << 8 | p_mac[5];
DP_VERBOSE(p_hwfn,
(QED_MSG_SP | NETIF_MSG_IFDOWN),
"Setting WoL MAC: %pM --> [%08x,%08x]\n",
p_mac, wol_mac.mac_upper, wol_mac.mac_lower);
mb_params.p_data_src = &wol_mac;
mb_params.data_src_size = sizeof(wol_mac);
}
return qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
}
static void qed_mcp_handle_vf_flr(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
PUBLIC_PATH);
u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
u32 path_addr = SECTION_ADDR(mfw_path_offsize,
QED_PATH_ID(p_hwfn));
u32 disabled_vfs[VF_MAX_STATIC / 32];
int i;
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Reading Disabled VF information from [offset %08x], path_addr %08x\n",
mfw_path_offsize, path_addr);
for (i = 0; i < (VF_MAX_STATIC / 32); i++) {
disabled_vfs[i] = qed_rd(p_hwfn, p_ptt,
path_addr +
offsetof(struct public_path,
mcp_vf_disabled) +
sizeof(u32) * i);
DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
"FLR-ed VFs [%08x,...,%08x] - %08x\n",
i * 32, (i + 1) * 32 - 1, disabled_vfs[i]);
}
if (qed_iov_mark_vf_flr(p_hwfn, disabled_vfs))
qed_schedule_iov(p_hwfn, QED_IOV_WQ_FLR_FLAG);
}
int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u32 *vfs_to_ack)
{
u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
PUBLIC_FUNC);
u32 mfw_func_offsize = qed_rd(p_hwfn, p_ptt, addr);
u32 func_addr = SECTION_ADDR(mfw_func_offsize,
MCP_PF_ID(p_hwfn));
struct qed_mcp_mb_params mb_params;
int rc;
int i;
for (i = 0; i < (VF_MAX_STATIC / 32); i++)
DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
"Acking VFs [%08x,...,%08x] - %08x\n",
i * 32, (i + 1) * 32 - 1, vfs_to_ack[i]);
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_VF_DISABLED_DONE;
mb_params.p_data_src = vfs_to_ack;
mb_params.data_src_size = VF_MAX_STATIC / 8;
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc) {
DP_NOTICE(p_hwfn, "Failed to pass ACK for VF flr to MFW\n");
return -EBUSY;
}
/* Clear the ACK bits */
for (i = 0; i < (VF_MAX_STATIC / 32); i++)
qed_wr(p_hwfn, p_ptt,
func_addr +
offsetof(struct public_func, drv_ack_vf_disabled) +
i * sizeof(u32), 0);
return rc;
}
static void qed_mcp_handle_transceiver_change(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
u32 transceiver_state;
transceiver_state = qed_rd(p_hwfn, p_ptt,
p_hwfn->mcp_info->port_addr +
offsetof(struct public_port,
transceiver_data));
DP_VERBOSE(p_hwfn,
(NETIF_MSG_HW | QED_MSG_SP),
"Received transceiver state update [0x%08x] from mfw [Addr 0x%x]\n",
transceiver_state,
(u32)(p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, transceiver_data)));
transceiver_state = GET_FIELD(transceiver_state,
ETH_TRANSCEIVER_STATE);
if (transceiver_state == ETH_TRANSCEIVER_STATE_PRESENT)
DP_NOTICE(p_hwfn, "Transceiver is present.\n");
else
DP_NOTICE(p_hwfn, "Transceiver is unplugged.\n");
}
static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, bool b_reset)
{
struct qed_mcp_link_state *p_link;
u8 max_bw, min_bw;
u32 status = 0;
/* Prevent SW/attentions from doing this at the same time */
spin_lock_bh(&p_hwfn->mcp_info->link_lock);
p_link = &p_hwfn->mcp_info->link_output;
memset(p_link, 0, sizeof(*p_link));
if (!b_reset) {
status = qed_rd(p_hwfn, p_ptt,
p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, link_status));
DP_VERBOSE(p_hwfn, (NETIF_MSG_LINK | QED_MSG_SP),
"Received link update [0x%08x] from mfw [Addr 0x%x]\n",
status,
(u32)(p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, link_status)));
} else {
DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
"Resetting link indications\n");
goto out;
}
if (p_hwfn->b_drv_link_init)
p_link->link_up = !!(status & LINK_STATUS_LINK_UP);
else
p_link->link_up = false;
p_link->full_duplex = true;
switch ((status & LINK_STATUS_SPEED_AND_DUPLEX_MASK)) {
case LINK_STATUS_SPEED_AND_DUPLEX_100G:
p_link->speed = 100000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_50G:
p_link->speed = 50000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_40G:
p_link->speed = 40000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_25G:
p_link->speed = 25000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_20G:
p_link->speed = 20000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_10G:
p_link->speed = 10000;
break;
case LINK_STATUS_SPEED_AND_DUPLEX_1000THD:
p_link->full_duplex = false;
/* Fall-through */
case LINK_STATUS_SPEED_AND_DUPLEX_1000TFD:
p_link->speed = 1000;
break;
default:
p_link->speed = 0;
}
if (p_link->link_up && p_link->speed)
p_link->line_speed = p_link->speed;
else
p_link->line_speed = 0;
max_bw = p_hwfn->mcp_info->func_info.bandwidth_max;
min_bw = p_hwfn->mcp_info->func_info.bandwidth_min;
/* Max bandwidth configuration */
__qed_configure_pf_max_bandwidth(p_hwfn, p_ptt, p_link, max_bw);
/* Min bandwidth configuration */
__qed_configure_pf_min_bandwidth(p_hwfn, p_ptt, p_link, min_bw);
qed_configure_vp_wfq_on_link_change(p_hwfn->cdev, p_ptt,
p_link->min_pf_rate);
p_link->an = !!(status & LINK_STATUS_AUTO_NEGOTIATE_ENABLED);
p_link->an_complete = !!(status &
LINK_STATUS_AUTO_NEGOTIATE_COMPLETE);
p_link->parallel_detection = !!(status &
LINK_STATUS_PARALLEL_DETECTION_USED);
p_link->pfc_enabled = !!(status & LINK_STATUS_PFC_ENABLED);
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE) ?
QED_LINK_PARTNER_SPEED_1G_FD : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE) ?
QED_LINK_PARTNER_SPEED_1G_HD : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_10G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_10G : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_20G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_20G : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_25G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_25G : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_40G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_40G : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_50G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_50G : 0;
p_link->partner_adv_speed |=
(status & LINK_STATUS_LINK_PARTNER_100G_CAPABLE) ?
QED_LINK_PARTNER_SPEED_100G : 0;
p_link->partner_tx_flow_ctrl_en =
!!(status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED);
p_link->partner_rx_flow_ctrl_en =
!!(status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED);
switch (status & LINK_STATUS_LINK_PARTNER_FLOW_CONTROL_MASK) {
case LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE:
p_link->partner_adv_pause = QED_LINK_PARTNER_SYMMETRIC_PAUSE;
break;
case LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE:
p_link->partner_adv_pause = QED_LINK_PARTNER_ASYMMETRIC_PAUSE;
break;
case LINK_STATUS_LINK_PARTNER_BOTH_PAUSE:
p_link->partner_adv_pause = QED_LINK_PARTNER_BOTH_PAUSE;
break;
default:
p_link->partner_adv_pause = 0;
}
p_link->sfp_tx_fault = !!(status & LINK_STATUS_SFP_TX_FAULT);
qed_link_update(p_hwfn);
out:
spin_unlock_bh(&p_hwfn->mcp_info->link_lock);
}
int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
{
struct qed_mcp_link_params *params = &p_hwfn->mcp_info->link_input;
struct qed_mcp_mb_params mb_params;
struct eth_phy_cfg phy_cfg;
int rc = 0;
u32 cmd;
/* Set the shmem configuration according to params */
memset(&phy_cfg, 0, sizeof(phy_cfg));
cmd = b_up ? DRV_MSG_CODE_INIT_PHY : DRV_MSG_CODE_LINK_RESET;
if (!params->speed.autoneg)
phy_cfg.speed = params->speed.forced_speed;
phy_cfg.pause |= (params->pause.autoneg) ? ETH_PAUSE_AUTONEG : 0;
phy_cfg.pause |= (params->pause.forced_rx) ? ETH_PAUSE_RX : 0;
phy_cfg.pause |= (params->pause.forced_tx) ? ETH_PAUSE_TX : 0;
phy_cfg.adv_speed = params->speed.advertised_speeds;
phy_cfg.loopback_mode = params->loopback_mode;
p_hwfn->b_drv_link_init = b_up;
if (b_up) {
DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
"Configuring Link: Speed 0x%08x, Pause 0x%08x, adv_speed 0x%08x, loopback 0x%08x, features 0x%08x\n",
phy_cfg.speed,
phy_cfg.pause,
phy_cfg.adv_speed,
phy_cfg.loopback_mode,
phy_cfg.feature_config_flags);
} else {
DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
"Resetting link\n");
}
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = cmd;
mb_params.p_data_src = &phy_cfg;
mb_params.data_src_size = sizeof(phy_cfg);
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
/* if mcp fails to respond we must abort */
if (rc) {
DP_ERR(p_hwfn, "MCP response failure, aborting\n");
return rc;
}
/* Mimic link-change attention, done for several reasons:
* - On reset, there's no guarantee MFW would trigger
* an attention.
* - On initialization, older MFWs might not indicate link change
* during LFA, so we'll never get an UP indication.
*/
qed_mcp_handle_link_change(p_hwfn, p_ptt, !b_up);
return 0;
}
static void qed_mcp_send_protocol_stats(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum MFW_DRV_MSG_TYPE type)
{
enum qed_mcp_protocol_type stats_type;
union qed_mcp_protocol_stats stats;
struct qed_mcp_mb_params mb_params;
u32 hsi_param;
switch (type) {
case MFW_DRV_MSG_GET_LAN_STATS:
stats_type = QED_MCP_LAN_STATS;
hsi_param = DRV_MSG_CODE_STATS_TYPE_LAN;
break;
case MFW_DRV_MSG_GET_FCOE_STATS:
stats_type = QED_MCP_FCOE_STATS;
hsi_param = DRV_MSG_CODE_STATS_TYPE_FCOE;
break;
case MFW_DRV_MSG_GET_ISCSI_STATS:
stats_type = QED_MCP_ISCSI_STATS;
hsi_param = DRV_MSG_CODE_STATS_TYPE_ISCSI;
break;
case MFW_DRV_MSG_GET_RDMA_STATS:
stats_type = QED_MCP_RDMA_STATS;
hsi_param = DRV_MSG_CODE_STATS_TYPE_RDMA;
break;
default:
DP_NOTICE(p_hwfn, "Invalid protocol type %d\n", type);
return;
}
qed_get_protocol_stats(p_hwfn->cdev, stats_type, &stats);
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_GET_STATS;
mb_params.param = hsi_param;
mb_params.p_data_src = &stats;
mb_params.data_src_size = sizeof(stats);
qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
}
static void qed_read_pf_bandwidth(struct qed_hwfn *p_hwfn,
struct public_func *p_shmem_info)
{
struct qed_mcp_function_info *p_info;
p_info = &p_hwfn->mcp_info->func_info;
p_info->bandwidth_min = (p_shmem_info->config &
FUNC_MF_CFG_MIN_BW_MASK) >>
FUNC_MF_CFG_MIN_BW_SHIFT;
if (p_info->bandwidth_min < 1 || p_info->bandwidth_min > 100) {
DP_INFO(p_hwfn,
"bandwidth minimum out of bounds [%02x]. Set to 1\n",
p_info->bandwidth_min);
p_info->bandwidth_min = 1;
}
p_info->bandwidth_max = (p_shmem_info->config &
FUNC_MF_CFG_MAX_BW_MASK) >>
FUNC_MF_CFG_MAX_BW_SHIFT;
if (p_info->bandwidth_max < 1 || p_info->bandwidth_max > 100) {
DP_INFO(p_hwfn,
"bandwidth maximum out of bounds [%02x]. Set to 100\n",
p_info->bandwidth_max);
p_info->bandwidth_max = 100;
}
}
static u32 qed_mcp_get_shmem_func(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct public_func *p_data, int pfid)
{
u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
PUBLIC_FUNC);
u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
u32 func_addr = SECTION_ADDR(mfw_path_offsize, pfid);
u32 i, size;
memset(p_data, 0, sizeof(*p_data));
size = min_t(u32, sizeof(*p_data), QED_SECTION_SIZE(mfw_path_offsize));
for (i = 0; i < size / sizeof(u32); i++)
((u32 *)p_data)[i] = qed_rd(p_hwfn, p_ptt,
func_addr + (i << 2));
return size;
}
static void qed_mcp_update_bw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_mcp_function_info *p_info;
struct public_func shmem_info;
u32 resp = 0, param = 0;
qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
qed_read_pf_bandwidth(p_hwfn, &shmem_info);
p_info = &p_hwfn->mcp_info->func_info;
qed_configure_pf_min_bandwidth(p_hwfn->cdev, p_info->bandwidth_min);
qed_configure_pf_max_bandwidth(p_hwfn->cdev, p_info->bandwidth_max);
/* Acknowledge the MFW */
qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BW_UPDATE_ACK, 0, &resp,
&param);
}
int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
struct qed_mcp_info *info = p_hwfn->mcp_info;
int rc = 0;
bool found = false;
u16 i;
DP_VERBOSE(p_hwfn, QED_MSG_SP, "Received message from MFW\n");
/* Read Messages from MFW */
qed_mcp_read_mb(p_hwfn, p_ptt);
/* Compare current messages to old ones */
for (i = 0; i < info->mfw_mb_length; i++) {
if (info->mfw_mb_cur[i] == info->mfw_mb_shadow[i])
continue;
found = true;
DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
"Msg [%d] - old CMD 0x%02x, new CMD 0x%02x\n",
i, info->mfw_mb_shadow[i], info->mfw_mb_cur[i]);
switch (i) {
case MFW_DRV_MSG_LINK_CHANGE:
qed_mcp_handle_link_change(p_hwfn, p_ptt, false);
break;
case MFW_DRV_MSG_VF_DISABLED:
qed_mcp_handle_vf_flr(p_hwfn, p_ptt);
break;
case MFW_DRV_MSG_LLDP_DATA_UPDATED:
qed_dcbx_mib_update_event(p_hwfn, p_ptt,
QED_DCBX_REMOTE_LLDP_MIB);
break;
case MFW_DRV_MSG_DCBX_REMOTE_MIB_UPDATED:
qed_dcbx_mib_update_event(p_hwfn, p_ptt,
QED_DCBX_REMOTE_MIB);
break;
case MFW_DRV_MSG_DCBX_OPERATIONAL_MIB_UPDATED:
qed_dcbx_mib_update_event(p_hwfn, p_ptt,
QED_DCBX_OPERATIONAL_MIB);
break;
case MFW_DRV_MSG_TRANSCEIVER_STATE_CHANGE:
qed_mcp_handle_transceiver_change(p_hwfn, p_ptt);
break;
case MFW_DRV_MSG_GET_LAN_STATS:
case MFW_DRV_MSG_GET_FCOE_STATS:
case MFW_DRV_MSG_GET_ISCSI_STATS:
case MFW_DRV_MSG_GET_RDMA_STATS:
qed_mcp_send_protocol_stats(p_hwfn, p_ptt, i);
break;
case MFW_DRV_MSG_BW_UPDATE:
qed_mcp_update_bw(p_hwfn, p_ptt);
break;
default:
DP_INFO(p_hwfn, "Unimplemented MFW message %d\n", i);
rc = -EINVAL;
}
}
/* ACK everything */
for (i = 0; i < MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length); i++) {
__be32 val = cpu_to_be32(((u32 *)info->mfw_mb_cur)[i]);
/* MFW expect answer in BE, so we force write in that format */
qed_wr(p_hwfn, p_ptt,
info->mfw_mb_addr + sizeof(u32) +
MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length) *
sizeof(u32) + i * sizeof(u32),
(__force u32)val);
}
if (!found) {
DP_NOTICE(p_hwfn,
"Received an MFW message indication but no new message!\n");
rc = -EINVAL;
}
/* Copy the new mfw messages into the shadow */
memcpy(info->mfw_mb_shadow, info->mfw_mb_cur, info->mfw_mb_length);
return rc;
}
int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 *p_mfw_ver, u32 *p_running_bundle_id)
{
u32 global_offsize;
if (IS_VF(p_hwfn->cdev)) {
if (p_hwfn->vf_iov_info) {
struct pfvf_acquire_resp_tlv *p_resp;
p_resp = &p_hwfn->vf_iov_info->acquire_resp;
*p_mfw_ver = p_resp->pfdev_info.mfw_ver;
return 0;
} else {
DP_VERBOSE(p_hwfn,
QED_MSG_IOV,
"VF requested MFW version prior to ACQUIRE\n");
return -EINVAL;
}
}
global_offsize = qed_rd(p_hwfn, p_ptt,
SECTION_OFFSIZE_ADDR(p_hwfn->
mcp_info->public_base,
PUBLIC_GLOBAL));
*p_mfw_ver =
qed_rd(p_hwfn, p_ptt,
SECTION_ADDR(global_offsize,
0) + offsetof(struct public_global, mfw_ver));
if (p_running_bundle_id != NULL) {
*p_running_bundle_id = qed_rd(p_hwfn, p_ptt,
SECTION_ADDR(global_offsize, 0) +
offsetof(struct public_global,
running_bundle_id));
}
return 0;
}
int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
{
struct qed_hwfn *p_hwfn = &cdev->hwfns[0];
struct qed_ptt *p_ptt;
if (IS_VF(cdev))
return -EINVAL;
if (!qed_mcp_is_init(p_hwfn)) {
DP_NOTICE(p_hwfn, "MFW is not initialized!\n");
return -EBUSY;
}
*p_media_type = MEDIA_UNSPECIFIED;
p_ptt = qed_ptt_acquire(p_hwfn);
if (!p_ptt)
return -EBUSY;
*p_media_type = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, media_type));
qed_ptt_release(p_hwfn, p_ptt);
return 0;
}
/* Old MFW has a global configuration for all PFs regarding RDMA support */
static void
qed_mcp_get_shmem_proto_legacy(struct qed_hwfn *p_hwfn,
enum qed_pci_personality *p_proto)
{
/* There wasn't ever a legacy MFW that published iwarp.
* So at this point, this is either plain l2 or RoCE.
*/
if (test_bit(QED_DEV_CAP_ROCE, &p_hwfn->hw_info.device_capabilities))
*p_proto = QED_PCI_ETH_ROCE;
else
*p_proto = QED_PCI_ETH;
DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP,
"According to Legacy capabilities, L2 personality is %08x\n",
(u32) *p_proto);
}
static int
qed_mcp_get_shmem_proto_mfw(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_pci_personality *p_proto)
{
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt,
DRV_MSG_CODE_GET_PF_RDMA_PROTOCOL, 0, &resp, &param);
if (rc)
return rc;
if (resp != FW_MSG_CODE_OK) {
DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP,
"MFW lacks support for command; Returns %08x\n",
resp);
return -EINVAL;
}
switch (param) {
case FW_MB_PARAM_GET_PF_RDMA_NONE:
*p_proto = QED_PCI_ETH;
break;
case FW_MB_PARAM_GET_PF_RDMA_ROCE:
*p_proto = QED_PCI_ETH_ROCE;
break;
case FW_MB_PARAM_GET_PF_RDMA_BOTH:
DP_NOTICE(p_hwfn,
"Current day drivers don't support RoCE & iWARP. Default to RoCE-only\n");
*p_proto = QED_PCI_ETH_ROCE;
break;
case FW_MB_PARAM_GET_PF_RDMA_IWARP:
default:
DP_NOTICE(p_hwfn,
"MFW answers GET_PF_RDMA_PROTOCOL but param is %08x\n",
param);
return -EINVAL;
}
DP_VERBOSE(p_hwfn,
NETIF_MSG_IFUP,
"According to capabilities, L2 personality is %08x [resp %08x param %08x]\n",
(u32) *p_proto, resp, param);
return 0;
}
static int
qed_mcp_get_shmem_proto(struct qed_hwfn *p_hwfn,
struct public_func *p_info,
struct qed_ptt *p_ptt,
enum qed_pci_personality *p_proto)
{
int rc = 0;
switch (p_info->config & FUNC_MF_CFG_PROTOCOL_MASK) {
case FUNC_MF_CFG_PROTOCOL_ETHERNET:
if (!IS_ENABLED(CONFIG_QED_RDMA))
*p_proto = QED_PCI_ETH;
else if (qed_mcp_get_shmem_proto_mfw(p_hwfn, p_ptt, p_proto))
qed_mcp_get_shmem_proto_legacy(p_hwfn, p_proto);
break;
case FUNC_MF_CFG_PROTOCOL_ISCSI:
*p_proto = QED_PCI_ISCSI;
break;
case FUNC_MF_CFG_PROTOCOL_FCOE:
*p_proto = QED_PCI_FCOE;
break;
case FUNC_MF_CFG_PROTOCOL_ROCE:
DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
/* Fallthrough */
default:
rc = -EINVAL;
}
return rc;
}
int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt)
{
struct qed_mcp_function_info *info;
struct public_func shmem_info;
qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
info = &p_hwfn->mcp_info->func_info;
info->pause_on_host = (shmem_info.config &
FUNC_MF_CFG_PAUSE_ON_HOST_RING) ? 1 : 0;
if (qed_mcp_get_shmem_proto(p_hwfn, &shmem_info, p_ptt,
&info->protocol)) {
DP_ERR(p_hwfn, "Unknown personality %08x\n",
(u32)(shmem_info.config & FUNC_MF_CFG_PROTOCOL_MASK));
return -EINVAL;
}
qed_read_pf_bandwidth(p_hwfn, &shmem_info);
if (shmem_info.mac_upper || shmem_info.mac_lower) {
info->mac[0] = (u8)(shmem_info.mac_upper >> 8);
info->mac[1] = (u8)(shmem_info.mac_upper);
info->mac[2] = (u8)(shmem_info.mac_lower >> 24);
info->mac[3] = (u8)(shmem_info.mac_lower >> 16);
info->mac[4] = (u8)(shmem_info.mac_lower >> 8);
info->mac[5] = (u8)(shmem_info.mac_lower);
/* Store primary MAC for later possible WoL */
memcpy(&p_hwfn->cdev->wol_mac, info->mac, ETH_ALEN);
} else {
DP_NOTICE(p_hwfn, "MAC is 0 in shmem\n");
}
info->wwn_port = (u64)shmem_info.fcoe_wwn_port_name_upper |
(((u64)shmem_info.fcoe_wwn_port_name_lower) << 32);
info->wwn_node = (u64)shmem_info.fcoe_wwn_node_name_upper |
(((u64)shmem_info.fcoe_wwn_node_name_lower) << 32);
info->ovlan = (u16)(shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK);
info->mtu = (u16)shmem_info.mtu_size;
p_hwfn->hw_info.b_wol_support = QED_WOL_SUPPORT_NONE;
p_hwfn->cdev->wol_config = (u8)QED_OV_WOL_DEFAULT;
if (qed_mcp_is_init(p_hwfn)) {
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt,
DRV_MSG_CODE_OS_WOL, 0, &resp, &param);
if (rc)
return rc;
if (resp == FW_MSG_CODE_OS_WOL_SUPPORTED)
p_hwfn->hw_info.b_wol_support = QED_WOL_SUPPORT_PME;
}
DP_VERBOSE(p_hwfn, (QED_MSG_SP | NETIF_MSG_IFUP),
"Read configuration from shmem: pause_on_host %02x protocol %02x BW [%02x - %02x] MAC %02x:%02x:%02x:%02x:%02x:%02x wwn port %llx node %llx ovlan %04x wol %02x\n",
info->pause_on_host, info->protocol,
info->bandwidth_min, info->bandwidth_max,
info->mac[0], info->mac[1], info->mac[2],
info->mac[3], info->mac[4], info->mac[5],
info->wwn_port, info->wwn_node,
info->ovlan, (u8)p_hwfn->hw_info.b_wol_support);
return 0;
}
struct qed_mcp_link_params
*qed_mcp_get_link_params(struct qed_hwfn *p_hwfn)
{
if (!p_hwfn || !p_hwfn->mcp_info)
return NULL;
return &p_hwfn->mcp_info->link_input;
}
struct qed_mcp_link_state
*qed_mcp_get_link_state(struct qed_hwfn *p_hwfn)
{
if (!p_hwfn || !p_hwfn->mcp_info)
return NULL;
return &p_hwfn->mcp_info->link_output;
}
struct qed_mcp_link_capabilities
*qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn)
{
if (!p_hwfn || !p_hwfn->mcp_info)
return NULL;
return &p_hwfn->mcp_info->link_capabilities;
}
int qed_mcp_drain(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt,
DRV_MSG_CODE_NIG_DRAIN, 1000, &resp, &param);
/* Wait for the drain to complete before returning */
msleep(1020);
return rc;
}
int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u32 *p_flash_size)
{
u32 flash_size;
if (IS_VF(p_hwfn->cdev))
return -EINVAL;
flash_size = qed_rd(p_hwfn, p_ptt, MCP_REG_NVM_CFG4);
flash_size = (flash_size & MCP_REG_NVM_CFG4_FLASH_SIZE) >>
MCP_REG_NVM_CFG4_FLASH_SIZE_SHIFT;
flash_size = (1 << (flash_size + MCP_BYTES_PER_MBIT_SHIFT));
*p_flash_size = flash_size;
return 0;
}
int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 vf_id, u8 num)
{
u32 resp = 0, param = 0, rc_param = 0;
int rc;
/* Only Leader can configure MSIX, and need to take CMT into account */
if (!IS_LEAD_HWFN(p_hwfn))
return 0;
num *= p_hwfn->cdev->num_hwfns;
param |= (vf_id << DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_SHIFT) &
DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_MASK;
param |= (num << DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_SHIFT) &
DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_MASK;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CFG_VF_MSIX, param,
&resp, &rc_param);
if (resp != FW_MSG_CODE_DRV_CFG_VF_MSIX_DONE) {
DP_NOTICE(p_hwfn, "VF[%d]: MFW failed to set MSI-X\n", vf_id);
rc = -EINVAL;
} else {
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"Requested 0x%02x MSI-x interrupts from VF 0x%02x\n",
num, vf_id);
}
return rc;
}
int
qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_mcp_drv_version *p_ver)
{
struct qed_mcp_mb_params mb_params;
struct drv_version_stc drv_version;
__be32 val;
u32 i;
int rc;
memset(&drv_version, 0, sizeof(drv_version));
drv_version.version = p_ver->version;
for (i = 0; i < (MCP_DRV_VER_STR_SIZE - 4) / sizeof(u32); i++) {
val = cpu_to_be32(*((u32 *)&p_ver->name[i * sizeof(u32)]));
*(__be32 *)&drv_version.name[i * sizeof(u32)] = val;
}
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_SET_VERSION;
mb_params.p_data_src = &drv_version;
mb_params.data_src_size = sizeof(drv_version);
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc)
DP_ERR(p_hwfn, "MCP response failure, aborting\n");
return rc;
}
int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MCP_HALT, 0, &resp,
&param);
if (rc)
DP_ERR(p_hwfn, "MCP response failure, aborting\n");
return rc;
}
int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 value, cpu_mode;
qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_STATE, 0xffffffff);
value = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
value &= ~MCP_REG_CPU_MODE_SOFT_HALT;
qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, value);
cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
return (cpu_mode & MCP_REG_CPU_MODE_SOFT_HALT) ? -EAGAIN : 0;
}
int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_ov_client client)
{
u32 resp = 0, param = 0;
u32 drv_mb_param;
int rc;
switch (client) {
case QED_OV_CLIENT_DRV:
drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_OS;
break;
case QED_OV_CLIENT_USER:
drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_OTHER;
break;
case QED_OV_CLIENT_VENDOR_SPEC:
drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_VENDOR_SPEC;
break;
default:
DP_NOTICE(p_hwfn, "Invalid client type %d\n", client);
return -EINVAL;
}
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_CURR_CFG,
drv_mb_param, &resp, &param);
if (rc)
DP_ERR(p_hwfn, "MCP response failure, aborting\n");
return rc;
}
int qed_mcp_ov_update_driver_state(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_ov_driver_state drv_state)
{
u32 resp = 0, param = 0;
u32 drv_mb_param;
int rc;
switch (drv_state) {
case QED_OV_DRIVER_STATE_NOT_LOADED:
drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_NOT_LOADED;
break;
case QED_OV_DRIVER_STATE_DISABLED:
drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_DISABLED;
break;
case QED_OV_DRIVER_STATE_ACTIVE:
drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_ACTIVE;
break;
default:
DP_NOTICE(p_hwfn, "Invalid driver state %d\n", drv_state);
return -EINVAL;
}
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE,
drv_mb_param, &resp, &param);
if (rc)
DP_ERR(p_hwfn, "Failed to send driver state\n");
return rc;
}
int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u16 mtu)
{
u32 resp = 0, param = 0;
u32 drv_mb_param;
int rc;
drv_mb_param = (u32)mtu << DRV_MB_PARAM_OV_MTU_SIZE_SHIFT;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_MTU,
drv_mb_param, &resp, &param);
if (rc)
DP_ERR(p_hwfn, "Failed to send mtu value, rc = %d\n", rc);
return rc;
}
int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 *mac)
{
struct qed_mcp_mb_params mb_params;
u32 mfw_mac[2];
int rc;
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = DRV_MSG_CODE_SET_VMAC;
mb_params.param = DRV_MSG_CODE_VMAC_TYPE_MAC <<
DRV_MSG_CODE_VMAC_TYPE_SHIFT;
mb_params.param |= MCP_PF_ID(p_hwfn);
/* MCP is BE, and on LE platforms PCI would swap access to SHMEM
* in 32-bit granularity.
* So the MAC has to be set in native order [and not byte order],
* otherwise it would be read incorrectly by MFW after swap.
*/
mfw_mac[0] = mac[0] << 24 | mac[1] << 16 | mac[2] << 8 | mac[3];
mfw_mac[1] = mac[4] << 24 | mac[5] << 16;
mb_params.p_data_src = (u8 *)mfw_mac;
mb_params.data_src_size = 8;
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc)
DP_ERR(p_hwfn, "Failed to send mac address, rc = %d\n", rc);
/* Store primary MAC for later possible WoL */
memcpy(p_hwfn->cdev->wol_mac, mac, ETH_ALEN);
return rc;
}
int qed_mcp_ov_update_wol(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, enum qed_ov_wol wol)
{
u32 resp = 0, param = 0;
u32 drv_mb_param;
int rc;
if (p_hwfn->hw_info.b_wol_support == QED_WOL_SUPPORT_NONE) {
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Can't change WoL configuration when WoL isn't supported\n");
return -EINVAL;
}
switch (wol) {
case QED_OV_WOL_DEFAULT:
drv_mb_param = DRV_MB_PARAM_WOL_DEFAULT;
break;
case QED_OV_WOL_DISABLED:
drv_mb_param = DRV_MB_PARAM_WOL_DISABLED;
break;
case QED_OV_WOL_ENABLED:
drv_mb_param = DRV_MB_PARAM_WOL_ENABLED;
break;
default:
DP_ERR(p_hwfn, "Invalid wol state %d\n", wol);
return -EINVAL;
}
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_WOL,
drv_mb_param, &resp, &param);
if (rc)
DP_ERR(p_hwfn, "Failed to send wol mode, rc = %d\n", rc);
/* Store the WoL update for a future unload */
p_hwfn->cdev->wol_config = (u8)wol;
return rc;
}
int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_ov_eswitch eswitch)
{
u32 resp = 0, param = 0;
u32 drv_mb_param;
int rc;
switch (eswitch) {
case QED_OV_ESWITCH_NONE:
drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_NONE;
break;
case QED_OV_ESWITCH_VEB:
drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_VEB;
break;
case QED_OV_ESWITCH_VEPA:
drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_VEPA;
break;
default:
DP_ERR(p_hwfn, "Invalid eswitch mode %d\n", eswitch);
return -EINVAL;
}
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_ESWITCH_MODE,
drv_mb_param, &resp, &param);
if (rc)
DP_ERR(p_hwfn, "Failed to send eswitch mode, rc = %d\n", rc);
return rc;
}
int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, enum qed_led_mode mode)
{
u32 resp = 0, param = 0, drv_mb_param;
int rc;
switch (mode) {
case QED_LED_MODE_ON:
drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_ON;
break;
case QED_LED_MODE_OFF:
drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OFF;
break;
case QED_LED_MODE_RESTORE:
drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OPER;
break;
default:
DP_NOTICE(p_hwfn, "Invalid LED mode %d\n", mode);
return -EINVAL;
}
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_LED_MODE,
drv_mb_param, &resp, &param);
return rc;
}
int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u32 mask_parities)
{
u32 resp = 0, param = 0;
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MASK_PARITIES,
mask_parities, &resp, &param);
if (rc) {
DP_ERR(p_hwfn,
"MCP response failure for mask parities, aborting\n");
} else if (resp != FW_MSG_CODE_OK) {
DP_ERR(p_hwfn,
"MCP did not acknowledge mask parity request. Old MFW?\n");
rc = -EINVAL;
}
return rc;
}
int qed_mcp_nvm_read(struct qed_dev *cdev, u32 addr, u8 *p_buf, u32 len)
{
u32 bytes_left = len, offset = 0, bytes_to_copy, read_len = 0;
struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
u32 resp = 0, resp_param = 0;
struct qed_ptt *p_ptt;
int rc = 0;
p_ptt = qed_ptt_acquire(p_hwfn);
if (!p_ptt)
return -EBUSY;
while (bytes_left > 0) {
bytes_to_copy = min_t(u32, bytes_left, MCP_DRV_NVM_BUF_LEN);
rc = qed_mcp_nvm_rd_cmd(p_hwfn, p_ptt,
DRV_MSG_CODE_NVM_READ_NVRAM,
addr + offset +
(bytes_to_copy <<
DRV_MB_PARAM_NVM_LEN_SHIFT),
&resp, &resp_param,
&read_len,
(u32 *)(p_buf + offset));
if (rc || (resp != FW_MSG_CODE_NVM_OK)) {
DP_NOTICE(cdev, "MCP command rc = %d\n", rc);
break;
}
/* This can be a lengthy process, and it's possible scheduler
* isn't preemptable. Sleep a bit to prevent CPU hogging.
*/
if (bytes_left % 0x1000 <
(bytes_left - read_len) % 0x1000)
usleep_range(1000, 2000);
offset += read_len;
bytes_left -= read_len;
}
cdev->mcp_nvm_resp = resp;
qed_ptt_release(p_hwfn, p_ptt);
return rc;
}
int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 drv_mb_param = 0, rsp, param;
int rc = 0;
drv_mb_param = (DRV_MB_PARAM_BIST_REGISTER_TEST <<
DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
drv_mb_param, &rsp, &param);
if (rc)
return rc;
if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
(param != DRV_MB_PARAM_BIST_RC_PASSED))
rc = -EAGAIN;
return rc;
}
int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 drv_mb_param, rsp, param;
int rc = 0;
drv_mb_param = (DRV_MB_PARAM_BIST_CLOCK_TEST <<
DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
drv_mb_param, &rsp, &param);
if (rc)
return rc;
if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
(param != DRV_MB_PARAM_BIST_RC_PASSED))
rc = -EAGAIN;
return rc;
}
int qed_mcp_bist_nvm_test_get_num_images(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 *num_images)
{
u32 drv_mb_param = 0, rsp;
int rc = 0;
drv_mb_param = (DRV_MB_PARAM_BIST_NVM_TEST_NUM_IMAGES <<
DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
drv_mb_param, &rsp, num_images);
if (rc)
return rc;
if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK))
rc = -EINVAL;
return rc;
}
int qed_mcp_bist_nvm_test_get_image_att(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct bist_nvm_image_att *p_image_att,
u32 image_index)
{
u32 buf_size = 0, param, resp = 0, resp_param = 0;
int rc;
param = DRV_MB_PARAM_BIST_NVM_TEST_IMAGE_BY_INDEX <<
DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT;
param |= image_index << DRV_MB_PARAM_BIST_TEST_IMAGE_INDEX_SHIFT;
rc = qed_mcp_nvm_rd_cmd(p_hwfn, p_ptt,
DRV_MSG_CODE_BIST_TEST, param,
&resp, &resp_param,
&buf_size,
(u32 *)p_image_att);
if (rc)
return rc;
if (((resp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
(p_image_att->return_code != 1))
rc = -EINVAL;
return rc;
}
static enum resource_id_enum qed_mcp_get_mfw_res_id(enum qed_resources res_id)
{
enum resource_id_enum mfw_res_id = RESOURCE_NUM_INVALID;
switch (res_id) {
case QED_SB:
mfw_res_id = RESOURCE_NUM_SB_E;
break;
case QED_L2_QUEUE:
mfw_res_id = RESOURCE_NUM_L2_QUEUE_E;
break;
case QED_VPORT:
mfw_res_id = RESOURCE_NUM_VPORT_E;
break;
case QED_RSS_ENG:
mfw_res_id = RESOURCE_NUM_RSS_ENGINES_E;
break;
case QED_PQ:
mfw_res_id = RESOURCE_NUM_PQ_E;
break;
case QED_RL:
mfw_res_id = RESOURCE_NUM_RL_E;
break;
case QED_MAC:
case QED_VLAN:
/* Each VFC resource can accommodate both a MAC and a VLAN */
mfw_res_id = RESOURCE_VFC_FILTER_E;
break;
case QED_ILT:
mfw_res_id = RESOURCE_ILT_E;
break;
case QED_LL2_QUEUE:
mfw_res_id = RESOURCE_LL2_QUEUE_E;
break;
case QED_RDMA_CNQ_RAM:
case QED_CMDQS_CQS:
/* CNQ/CMDQS are the same resource */
mfw_res_id = RESOURCE_CQS_E;
break;
case QED_RDMA_STATS_QUEUE:
mfw_res_id = RESOURCE_RDMA_STATS_QUEUE_E;
break;
case QED_BDQ:
mfw_res_id = RESOURCE_BDQ_E;
break;
default:
break;
}
return mfw_res_id;
}
#define QED_RESC_ALLOC_VERSION_MAJOR 2
#define QED_RESC_ALLOC_VERSION_MINOR 0
#define QED_RESC_ALLOC_VERSION \
((QED_RESC_ALLOC_VERSION_MAJOR << \
DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR_SHIFT) | \
(QED_RESC_ALLOC_VERSION_MINOR << \
DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR_SHIFT))
struct qed_resc_alloc_in_params {
u32 cmd;
enum qed_resources res_id;
u32 resc_max_val;
};
struct qed_resc_alloc_out_params {
u32 mcp_resp;
u32 mcp_param;
u32 resc_num;
u32 resc_start;
u32 vf_resc_num;
u32 vf_resc_start;
u32 flags;
};
static int
qed_mcp_resc_allocation_msg(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_resc_alloc_in_params *p_in_params,
struct qed_resc_alloc_out_params *p_out_params)
{
struct qed_mcp_mb_params mb_params;
struct resource_info mfw_resc_info;
int rc;
memset(&mfw_resc_info, 0, sizeof(mfw_resc_info));
mfw_resc_info.res_id = qed_mcp_get_mfw_res_id(p_in_params->res_id);
if (mfw_resc_info.res_id == RESOURCE_NUM_INVALID) {
DP_ERR(p_hwfn,
"Failed to match resource %d [%s] with the MFW resources\n",
p_in_params->res_id,
qed_hw_get_resc_name(p_in_params->res_id));
return -EINVAL;
}
switch (p_in_params->cmd) {
case DRV_MSG_SET_RESOURCE_VALUE_MSG:
mfw_resc_info.size = p_in_params->resc_max_val;
/* Fallthrough */
case DRV_MSG_GET_RESOURCE_ALLOC_MSG:
break;
default:
DP_ERR(p_hwfn, "Unexpected resource alloc command [0x%08x]\n",
p_in_params->cmd);
return -EINVAL;
}
memset(&mb_params, 0, sizeof(mb_params));
mb_params.cmd = p_in_params->cmd;
mb_params.param = QED_RESC_ALLOC_VERSION;
mb_params.p_data_src = &mfw_resc_info;
mb_params.data_src_size = sizeof(mfw_resc_info);
mb_params.p_data_dst = mb_params.p_data_src;
mb_params.data_dst_size = mb_params.data_src_size;
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Resource message request: cmd 0x%08x, res_id %d [%s], hsi_version %d.%d, val 0x%x\n",
p_in_params->cmd,
p_in_params->res_id,
qed_hw_get_resc_name(p_in_params->res_id),
QED_MFW_GET_FIELD(mb_params.param,
DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR),
QED_MFW_GET_FIELD(mb_params.param,
DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR),
p_in_params->resc_max_val);
rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
if (rc)
return rc;
p_out_params->mcp_resp = mb_params.mcp_resp;
p_out_params->mcp_param = mb_params.mcp_param;
p_out_params->resc_num = mfw_resc_info.size;
p_out_params->resc_start = mfw_resc_info.offset;
p_out_params->vf_resc_num = mfw_resc_info.vf_size;
p_out_params->vf_resc_start = mfw_resc_info.vf_offset;
p_out_params->flags = mfw_resc_info.flags;
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Resource message response: mfw_hsi_version %d.%d, num 0x%x, start 0x%x, vf_num 0x%x, vf_start 0x%x, flags 0x%08x\n",
QED_MFW_GET_FIELD(p_out_params->mcp_param,
FW_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR),
QED_MFW_GET_FIELD(p_out_params->mcp_param,
FW_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR),
p_out_params->resc_num,
p_out_params->resc_start,
p_out_params->vf_resc_num,
p_out_params->vf_resc_start, p_out_params->flags);
return 0;
}
int
qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_resources res_id,
u32 resc_max_val, u32 *p_mcp_resp)
{
struct qed_resc_alloc_out_params out_params;
struct qed_resc_alloc_in_params in_params;
int rc;
memset(&in_params, 0, sizeof(in_params));
in_params.cmd = DRV_MSG_SET_RESOURCE_VALUE_MSG;
in_params.res_id = res_id;
in_params.resc_max_val = resc_max_val;
memset(&out_params, 0, sizeof(out_params));
rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
&out_params);
if (rc)
return rc;
*p_mcp_resp = out_params.mcp_resp;
return 0;
}
int
qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_resources res_id,
u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start)
{
struct qed_resc_alloc_out_params out_params;
struct qed_resc_alloc_in_params in_params;
int rc;
memset(&in_params, 0, sizeof(in_params));
in_params.cmd = DRV_MSG_GET_RESOURCE_ALLOC_MSG;
in_params.res_id = res_id;
memset(&out_params, 0, sizeof(out_params));
rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
&out_params);
if (rc)
return rc;
*p_mcp_resp = out_params.mcp_resp;
if (*p_mcp_resp == FW_MSG_CODE_RESOURCE_ALLOC_OK) {
*p_resc_num = out_params.resc_num;
*p_resc_start = out_params.resc_start;
}
return 0;
}
int qed_mcp_initiate_pf_flr(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
u32 mcp_resp, mcp_param;
return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_INITIATE_PF_FLR, 0,
&mcp_resp, &mcp_param);
}
static int qed_mcp_resource_cmd(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 param, u32 *p_mcp_resp, u32 *p_mcp_param)
{
int rc;
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_RESOURCE_CMD, param,
p_mcp_resp, p_mcp_param);
if (rc)
return rc;
if (*p_mcp_resp == FW_MSG_CODE_UNSUPPORTED) {
DP_INFO(p_hwfn,
"The resource command is unsupported by the MFW\n");
return -EINVAL;
}
if (*p_mcp_param == RESOURCE_OPCODE_UNKNOWN_CMD) {
u8 opcode = QED_MFW_GET_FIELD(param, RESOURCE_CMD_REQ_OPCODE);
DP_NOTICE(p_hwfn,
"The resource command is unknown to the MFW [param 0x%08x, opcode %d]\n",
param, opcode);
return -EINVAL;
}
return rc;
}
int
__qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_resc_lock_params *p_params)
{
u32 param = 0, mcp_resp, mcp_param;
u8 opcode;
int rc;
switch (p_params->timeout) {
case QED_MCP_RESC_LOCK_TO_DEFAULT:
opcode = RESOURCE_OPCODE_REQ;
p_params->timeout = 0;
break;
case QED_MCP_RESC_LOCK_TO_NONE:
opcode = RESOURCE_OPCODE_REQ_WO_AGING;
p_params->timeout = 0;
break;
default:
opcode = RESOURCE_OPCODE_REQ_W_AGING;
break;
}
QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_RESC, p_params->resource);
QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_OPCODE, opcode);
QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_AGE, p_params->timeout);
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Resource lock request: param 0x%08x [age %d, opcode %d, resource %d]\n",
param, p_params->timeout, opcode, p_params->resource);
/* Attempt to acquire the resource */
rc = qed_mcp_resource_cmd(p_hwfn, p_ptt, param, &mcp_resp, &mcp_param);
if (rc)
return rc;
/* Analyze the response */
p_params->owner = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OWNER);
opcode = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OPCODE);
DP_VERBOSE(p_hwfn,
QED_MSG_SP,
"Resource lock response: mcp_param 0x%08x [opcode %d, owner %d]\n",
mcp_param, opcode, p_params->owner);
switch (opcode) {
case RESOURCE_OPCODE_GNT:
p_params->b_granted = true;
break;
case RESOURCE_OPCODE_BUSY:
p_params->b_granted = false;
break;
default:
DP_NOTICE(p_hwfn,
"Unexpected opcode in resource lock response [mcp_param 0x%08x, opcode %d]\n",
mcp_param, opcode);
return -EINVAL;
}
return 0;
}
int
qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, struct qed_resc_lock_params *p_params)
{
u32 retry_cnt = 0;
int rc;
do {
/* No need for an interval before the first iteration */
if (retry_cnt) {
if (p_params->sleep_b4_retry) {
u16 retry_interval_in_ms =
DIV_ROUND_UP(p_params->retry_interval,
1000);
msleep(retry_interval_in_ms);
} else {
udelay(p_params->retry_interval);
}
}
rc = __qed_mcp_resc_lock(p_hwfn, p_ptt, p_params);
if (rc)
return rc;
if (p_params->b_granted)
break;
} while (retry_cnt++ < p_params->retry_num);
return 0;
}
int
qed_mcp_resc_unlock(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_resc_unlock_params *p_params)
{
u32 param = 0, mcp_resp, mcp_param;
u8 opcode;
int rc;
opcode = p_params->b_force ? RESOURCE_OPCODE_FORCE_RELEASE
: RESOURCE_OPCODE_RELEASE;
QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_RESC, p_params->resource);
QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_OPCODE, opcode);
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Resource unlock request: param 0x%08x [opcode %d, resource %d]\n",
param, opcode, p_params->resource);
/* Attempt to release the resource */
rc = qed_mcp_resource_cmd(p_hwfn, p_ptt, param, &mcp_resp, &mcp_param);
if (rc)
return rc;
/* Analyze the response */
opcode = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OPCODE);
DP_VERBOSE(p_hwfn, QED_MSG_SP,
"Resource unlock response: mcp_param 0x%08x [opcode %d]\n",
mcp_param, opcode);
switch (opcode) {
case RESOURCE_OPCODE_RELEASED_PREVIOUS:
DP_INFO(p_hwfn,
"Resource unlock request for an already released resource [%d]\n",
p_params->resource);
/* Fallthrough */
case RESOURCE_OPCODE_RELEASED:
p_params->b_released = true;
break;
case RESOURCE_OPCODE_WRONG_OWNER:
p_params->b_released = false;
break;
default:
DP_NOTICE(p_hwfn,
"Unexpected opcode in resource unlock response [mcp_param 0x%08x, opcode %d]\n",
mcp_param, opcode);
return -EINVAL;
}
return 0;
}
void qed_mcp_resc_lock_default_init(struct qed_resc_lock_params *p_lock,
struct qed_resc_unlock_params *p_unlock,
enum qed_resc_lock
resource, bool b_is_permanent)
{
if (p_lock) {
memset(p_lock, 0, sizeof(*p_lock));
/* Permanent resources don't require aging, and there's no
* point in trying to acquire them more than once since it's
* unexpected another entity would release them.
*/
if (b_is_permanent) {
p_lock->timeout = QED_MCP_RESC_LOCK_TO_NONE;
} else {
p_lock->retry_num = QED_MCP_RESC_LOCK_RETRY_CNT_DFLT;
p_lock->retry_interval =
QED_MCP_RESC_LOCK_RETRY_VAL_DFLT;
p_lock->sleep_b4_retry = true;
}
p_lock->resource = resource;
}
if (p_unlock) {
memset(p_unlock, 0, sizeof(*p_unlock));
p_unlock->resource = resource;
}
}
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