From 458f0360e8dc72ccc6f98ca724ab3d55325ad493 Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Wed, 9 Oct 2019 18:41:47 -0700 Subject: [PATCH] net/bnxt: get default HWRM command timeout from FW The HWRM command timeout is set to a very high value. VER_GET command response returns the default request timeout value. Use this value for waiting for HWRM commands to complete. Poll for the valid bit every 1us instead of 600us. Fixes: cbcd375d37d2 ("net/bnxt: fix HWRM macros and locking") Cc: stable@dpdk.org Signed-off-by: Santoshkumar Karanappa Rastapur Signed-off-by: Ajit Khaparde Reviewed-by: Lance Richardson --- drivers/net/bnxt/bnxt.h | 5 +++++ drivers/net/bnxt/bnxt_hwrm.c | 13 +++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h index ad0b18dddd..5020cd3415 100644 --- a/drivers/net/bnxt/bnxt.h +++ b/drivers/net/bnxt/bnxt.h @@ -525,6 +525,11 @@ struct bnxt { uint16_t max_resp_len; uint16_t hwrm_max_ext_req_len; + /* default command timeout value of 50ms */ +#define HWRM_CMD_TIMEOUT 50000 + /* default HWRM request timeout value */ + uint32_t hwrm_cmd_timeout; + struct bnxt_link_info link_info; struct bnxt_cos_queue_info rx_cos_queue[BNXT_COS_QUEUE_COUNT]; struct bnxt_cos_queue_info tx_cos_queue[BNXT_COS_QUEUE_COUNT]; diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c index a40197e929..5e3117fee9 100644 --- a/drivers/net/bnxt/bnxt_hwrm.c +++ b/drivers/net/bnxt/bnxt_hwrm.c @@ -25,8 +25,6 @@ #include -#define HWRM_CMD_TIMEOUT 6000000 -#define HWRM_SHORT_CMD_TIMEOUT 50000 #define HWRM_SPEC_CODE_1_8_3 0x10803 #define HWRM_VERSION_1_9_1 0x10901 #define HWRM_VERSION_1_9_2 0x10903 @@ -105,9 +103,9 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg, /* For VER_GET command, set timeout as 50ms */ if (rte_cpu_to_le_16(req->req_type) == HWRM_VER_GET) - timeout = HWRM_SHORT_CMD_TIMEOUT; - else timeout = HWRM_CMD_TIMEOUT; + else + timeout = bp->hwrm_cmd_timeout; if (bp->flags & BNXT_FLAG_SHORT_CMD || msg_len > bp->max_req_len) { @@ -969,6 +967,13 @@ int bnxt_hwrm_ver_get(struct bnxt *bp) fw_version |= resp->hwrm_intf_upd_8b; bp->hwrm_spec_code = fw_version; + /* def_req_timeout value is in milliseconds */ + bp->hwrm_cmd_timeout = rte_le_to_cpu_16(resp->def_req_timeout); + /* convert timeout to usec */ + bp->hwrm_cmd_timeout *= 1000; + if (!bp->hwrm_cmd_timeout) + bp->hwrm_cmd_timeout = HWRM_CMD_TIMEOUT; + if (resp->hwrm_intf_maj_8b != HWRM_VERSION_MAJOR) { PMD_DRV_LOG(ERR, "Unsupported firmware API version\n"); rc = -EINVAL; -- 2.20.1