net/bnxt: inform firmware about IF state changes

[dpdk.git] / drivers / net / bnxt / bnxt_hwrm.c

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index abbad01..1bdbb14 100644 (file)
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -726,6 +726,11 @@ int bnxt_hwrm_func_driver_register(struct bnxt *bp)
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
        HWRM_CHECK_RESULT();
+
+       flags = rte_le_to_cpu_32(resp->flags);
+       if (flags & HWRM_FUNC_DRV_RGTR_OUTPUT_FLAGS_IF_CHANGE_SUPPORTED)
+               bp->flags |= BNXT_FLAG_FW_CAP_IF_CHANGE;
+
        HWRM_UNLOCK();
 
        bp->flags |= BNXT_FLAG_REGISTERED;
@@ -4659,3 +4664,40 @@ int bnxt_hwrm_set_mac(struct bnxt *bp)
 
        return rc;
 }
+
+int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
+{
+       struct hwrm_func_drv_if_change_output *resp = bp->hwrm_cmd_resp_addr;
+       struct hwrm_func_drv_if_change_input req = {0};
+       uint32_t flags;
+       int rc;
+
+       if (!(bp->flags & BNXT_FLAG_FW_CAP_IF_CHANGE))
+               return 0;
+
+       /* Do not issue FUNC_DRV_IF_CHANGE during reset recovery.
+        * If we issue FUNC_DRV_IF_CHANGE with flags down before
+        * FUNC_DRV_UNRGTR, FW resets before FUNC_DRV_UNRGTR
+        */
+       if (!up && (bp->flags & BNXT_FLAG_FW_RESET))
+               return 0;
+
+       HWRM_PREP(req, FUNC_DRV_IF_CHANGE, BNXT_USE_CHIMP_MB);
+
+       if (up)
+               req.flags =
+               rte_cpu_to_le_32(HWRM_FUNC_DRV_IF_CHANGE_INPUT_FLAGS_UP);
+
+       rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
+
+       HWRM_CHECK_RESULT();
+       flags = rte_le_to_cpu_32(resp->flags);
+       HWRM_UNLOCK();
+
+       if (flags & HWRM_FUNC_DRV_IF_CHANGE_OUTPUT_FLAGS_HOT_FW_RESET_DONE) {
+               PMD_DRV_LOG(INFO, "FW reset happened while port was down\n");
+               bp->flags |= BNXT_FLAG_IF_CHANGE_HOT_FW_RESET_DONE;
+       }
+
+       return 0;
+}