diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_mcp.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_mcp.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index 280527cc0578..9624616806e7 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -575,6 +575,8 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, if (!QED_MB_FLAGS_IS_SET(p_mb_params, AVOID_BLOCK)) qed_mcp_cmd_set_blocking(p_hwfn, true); + qed_hw_err_notify(p_hwfn, p_ptt, + QED_HW_ERR_MFW_RESP_FAIL, NULL); return -EAGAIN; } @@ -1704,6 +1706,127 @@ static void qed_mcp_update_stag(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) &resp, ¶m); } +static void qed_mcp_handle_fan_failure(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt) +{ + /* A single notification should be sent to upper driver in CMT mode */ + if (p_hwfn != QED_LEADING_HWFN(p_hwfn->cdev)) + return; + + qed_hw_err_notify(p_hwfn, p_ptt, QED_HW_ERR_FAN_FAIL, + "Fan failure was detected on the network interface card and it's going to be shut down.\n"); +} + +struct qed_mdump_cmd_params { + u32 cmd; + void *p_data_src; + u8 data_src_size; + void *p_data_dst; + u8 data_dst_size; + u32 mcp_resp; +}; + +static int +qed_mcp_mdump_cmd(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct qed_mdump_cmd_params *p_mdump_cmd_params) +{ + struct qed_mcp_mb_params mb_params; + int rc; + + memset(&mb_params, 0, sizeof(mb_params)); + mb_params.cmd = DRV_MSG_CODE_MDUMP_CMD; + mb_params.param = p_mdump_cmd_params->cmd; + mb_params.p_data_src = p_mdump_cmd_params->p_data_src; + mb_params.data_src_size = p_mdump_cmd_params->data_src_size; + mb_params.p_data_dst = p_mdump_cmd_params->p_data_dst; + mb_params.data_dst_size = p_mdump_cmd_params->data_dst_size; + rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params); + if (rc) + return rc; + + p_mdump_cmd_params->mcp_resp = mb_params.mcp_resp; + + if (p_mdump_cmd_params->mcp_resp == FW_MSG_CODE_MDUMP_INVALID_CMD) { + DP_INFO(p_hwfn, + "The mdump sub command is unsupported by the MFW [mdump_cmd 0x%x]\n", + p_mdump_cmd_params->cmd); + rc = -EOPNOTSUPP; + } else if (p_mdump_cmd_params->mcp_resp == FW_MSG_CODE_UNSUPPORTED) { + DP_INFO(p_hwfn, + "The mdump command is not supported by the MFW\n"); + rc = -EOPNOTSUPP; + } + + return rc; +} + +static int qed_mcp_mdump_ack(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + struct qed_mdump_cmd_params mdump_cmd_params; + + memset(&mdump_cmd_params, 0, sizeof(mdump_cmd_params)); + mdump_cmd_params.cmd = DRV_MSG_CODE_MDUMP_ACK; + + return qed_mcp_mdump_cmd(p_hwfn, p_ptt, &mdump_cmd_params); +} + +int +qed_mcp_mdump_get_retain(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct mdump_retain_data_stc *p_mdump_retain) +{ + struct qed_mdump_cmd_params mdump_cmd_params; + int rc; + + memset(&mdump_cmd_params, 0, sizeof(mdump_cmd_params)); + mdump_cmd_params.cmd = DRV_MSG_CODE_MDUMP_GET_RETAIN; + mdump_cmd_params.p_data_dst = p_mdump_retain; + mdump_cmd_params.data_dst_size = sizeof(*p_mdump_retain); + + rc = qed_mcp_mdump_cmd(p_hwfn, p_ptt, &mdump_cmd_params); + if (rc) + return rc; + + if (mdump_cmd_params.mcp_resp != FW_MSG_CODE_OK) { + DP_INFO(p_hwfn, + "Failed to get the mdump retained data [mcp_resp 0x%x]\n", + mdump_cmd_params.mcp_resp); + return -EINVAL; + } + + return 0; +} + +static void qed_mcp_handle_critical_error(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt) +{ + struct mdump_retain_data_stc mdump_retain; + int rc; + + /* In CMT mode - no need for more than a single acknowledgment to the + * MFW, and no more than a single notification to the upper driver. + */ + if (p_hwfn != QED_LEADING_HWFN(p_hwfn->cdev)) + return; + + rc = qed_mcp_mdump_get_retain(p_hwfn, p_ptt, &mdump_retain); + if (rc == 0 && mdump_retain.valid) + DP_NOTICE(p_hwfn, + "The MFW notified that a critical error occurred in the device [epoch 0x%08x, pf 0x%x, status 0x%08x]\n", + mdump_retain.epoch, + mdump_retain.pf, mdump_retain.status); + else + DP_NOTICE(p_hwfn, + "The MFW notified that a critical error occurred in the device\n"); + + DP_NOTICE(p_hwfn, + "Acknowledging the notification to not allow the MFW crash dump [driver debug data collection is preferable]\n"); + qed_mcp_mdump_ack(p_hwfn, p_ptt); + + qed_hw_err_notify(p_hwfn, p_ptt, QED_HW_ERR_HW_ATTN, NULL); +} + void qed_mcp_read_ufp_config(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { struct public_func shmem_info; @@ -1850,6 +1973,12 @@ int qed_mcp_handle_events(struct qed_hwfn *p_hwfn, case MFW_DRV_MSG_S_TAG_UPDATE: qed_mcp_update_stag(p_hwfn, p_ptt); break; + case MFW_DRV_MSG_FAILURE_DETECTED: + qed_mcp_handle_fan_failure(p_hwfn, p_ptt); + break; + case MFW_DRV_MSG_CRITICAL_ERROR_OCCURRED: + qed_mcp_handle_critical_error(p_hwfn, p_ptt); + break; case MFW_DRV_MSG_GET_TLV_REQ: qed_mfw_tlv_req(p_hwfn); break; @@ -3819,3 +3948,127 @@ int qed_mcp_nvm_set_cfg(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, DRV_MSG_CODE_SET_NVM_CFG_OPTION, mb_param, &resp, ¶m, len, (u32 *)p_buf); } + +#define QED_MCP_DBG_DATA_MAX_SIZE MCP_DRV_NVM_BUF_LEN +#define QED_MCP_DBG_DATA_MAX_HEADER_SIZE sizeof(u32) +#define QED_MCP_DBG_DATA_MAX_PAYLOAD_SIZE \ + (QED_MCP_DBG_DATA_MAX_SIZE - QED_MCP_DBG_DATA_MAX_HEADER_SIZE) + +static int +__qed_mcp_send_debug_data(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, u8 *p_buf, u8 size) +{ + struct qed_mcp_mb_params mb_params; + int rc; + + if (size > QED_MCP_DBG_DATA_MAX_SIZE) { + DP_ERR(p_hwfn, + "Debug data size is %d while it should not exceed %d\n", + size, QED_MCP_DBG_DATA_MAX_SIZE); + return -EINVAL; + } + + memset(&mb_params, 0, sizeof(mb_params)); + mb_params.cmd = DRV_MSG_CODE_DEBUG_DATA_SEND; + SET_MFW_FIELD(mb_params.param, DRV_MSG_CODE_DEBUG_DATA_SEND_SIZE, size); + mb_params.p_data_src = p_buf; + mb_params.data_src_size = size; + rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params); + if (rc) + return rc; + + if (mb_params.mcp_resp == FW_MSG_CODE_UNSUPPORTED) { + DP_INFO(p_hwfn, + "The DEBUG_DATA_SEND command is unsupported by the MFW\n"); + return -EOPNOTSUPP; + } else if (mb_params.mcp_resp == (u32)FW_MSG_CODE_DEBUG_NOT_ENABLED) { + DP_INFO(p_hwfn, "The DEBUG_DATA_SEND command is not enabled\n"); + return -EBUSY; + } else if (mb_params.mcp_resp != (u32)FW_MSG_CODE_DEBUG_DATA_SEND_OK) { + DP_NOTICE(p_hwfn, + "Failed to send debug data to the MFW [resp 0x%08x]\n", + mb_params.mcp_resp); + return -EINVAL; + } + + return 0; +} + +enum qed_mcp_dbg_data_type { + QED_MCP_DBG_DATA_TYPE_RAW, +}; + +/* Header format: [31:28] PFID, [27:20] flags, [19:12] type, [11:0] S/N */ +#define QED_MCP_DBG_DATA_HDR_SN_OFFSET 0 +#define QED_MCP_DBG_DATA_HDR_SN_MASK 0x00000fff +#define QED_MCP_DBG_DATA_HDR_TYPE_OFFSET 12 +#define QED_MCP_DBG_DATA_HDR_TYPE_MASK 0x000ff000 +#define QED_MCP_DBG_DATA_HDR_FLAGS_OFFSET 20 +#define QED_MCP_DBG_DATA_HDR_FLAGS_MASK 0x0ff00000 +#define QED_MCP_DBG_DATA_HDR_PF_OFFSET 28 +#define QED_MCP_DBG_DATA_HDR_PF_MASK 0xf0000000 + +#define QED_MCP_DBG_DATA_HDR_FLAGS_FIRST 0x1 +#define QED_MCP_DBG_DATA_HDR_FLAGS_LAST 0x2 + +static int +qed_mcp_send_debug_data(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + enum qed_mcp_dbg_data_type type, u8 *p_buf, u32 size) +{ + u8 raw_data[QED_MCP_DBG_DATA_MAX_SIZE], *p_tmp_buf = p_buf; + u32 tmp_size = size, *p_header, *p_payload; + u8 flags = 0; + u16 seq; + int rc; + + p_header = (u32 *)raw_data; + p_payload = (u32 *)(raw_data + QED_MCP_DBG_DATA_MAX_HEADER_SIZE); + + seq = (u16)atomic_inc_return(&p_hwfn->mcp_info->dbg_data_seq); + + /* First chunk is marked as 'first' */ + flags |= QED_MCP_DBG_DATA_HDR_FLAGS_FIRST; + + *p_header = 0; + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_SN, seq); + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_TYPE, type); + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_FLAGS, flags); + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_PF, p_hwfn->abs_pf_id); + + while (tmp_size > QED_MCP_DBG_DATA_MAX_PAYLOAD_SIZE) { + memcpy(p_payload, p_tmp_buf, QED_MCP_DBG_DATA_MAX_PAYLOAD_SIZE); + rc = __qed_mcp_send_debug_data(p_hwfn, p_ptt, raw_data, + QED_MCP_DBG_DATA_MAX_SIZE); + if (rc) + return rc; + + /* Clear the 'first' marking after sending the first chunk */ + if (p_tmp_buf == p_buf) { + flags &= ~QED_MCP_DBG_DATA_HDR_FLAGS_FIRST; + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_FLAGS, + flags); + } + + p_tmp_buf += QED_MCP_DBG_DATA_MAX_PAYLOAD_SIZE; + tmp_size -= QED_MCP_DBG_DATA_MAX_PAYLOAD_SIZE; + } + + /* Last chunk is marked as 'last' */ + flags |= QED_MCP_DBG_DATA_HDR_FLAGS_LAST; + SET_MFW_FIELD(*p_header, QED_MCP_DBG_DATA_HDR_FLAGS, flags); + memcpy(p_payload, p_tmp_buf, tmp_size); + + /* Casting the left size to u8 is ok since at this point it is <= 32 */ + return __qed_mcp_send_debug_data(p_hwfn, p_ptt, raw_data, + (u8)(QED_MCP_DBG_DATA_MAX_HEADER_SIZE + + tmp_size)); +} + +int +qed_mcp_send_raw_debug_data(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, u8 *p_buf, u32 size) +{ + return qed_mcp_send_debug_data(p_hwfn, p_ptt, + QED_MCP_DBG_DATA_TYPE_RAW, p_buf, size); +} |