net/bnxt: cleanup comments

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

diff --git a/drivers/net/bnxt/bnxt_cpr.c b/drivers/net/bnxt/bnxt_cpr.c
index 3afb990..e6f30fe 100644 (file)
--- a/drivers/net/bnxt/bnxt_cpr.c
+++ b/drivers/net/bnxt/bnxt_cpr.c
@@ -5,13 +5,47 @@
 
 #include <rte_malloc.h>
 #include <rte_alarm.h>
+#include <rte_cycles.h>
 
 #include "bnxt.h"
-#include "bnxt_cpr.h"
 #include "bnxt_hwrm.h"
 #include "bnxt_ring.h"
 #include "hsi_struct_def_dpdk.h"
 
+void bnxt_wait_for_device_shutdown(struct bnxt *bp)
+{
+       uint32_t val, timeout;
+
+       /* if HWRM_FUNC_QCAPS_OUTPUT_FLAGS_ERR_RECOVER_RELOAD is set
+        * in HWRM_FUNC_QCAPS command, wait for FW_STATUS to set
+        * the SHUTDOWN bit in health register
+        */
+       if (!(bp->recovery_info &&
+             (bp->flags & BNXT_FLAG_FW_CAP_ERR_RECOVER_RELOAD)))
+               return;
+
+       /* Driver has to wait for fw_reset_max_msecs or shutdown bit which comes
+        * first for FW to collect crash dump.
+        */
+       timeout = bp->fw_reset_max_msecs;
+
+       /* Driver has to poll for shutdown bit in fw_status register
+        *
+        * 1. in case of hot fw upgrade, this bit will be set after all
+        *    function drivers unregistered with fw.
+        * 2. in case of fw initiated error recovery, this bit will be
+        *    set after fw has collected the core dump
+        */
+       do {
+               val = bnxt_read_fw_status_reg(bp, BNXT_FW_STATUS_REG);
+               if (val & BNXT_FW_STATUS_SHUTDOWN)
+                       return;
+
+               rte_delay_ms(100);
+               timeout -= 100;
+       } while (timeout);
+}
+
 /*
  * Async event handling
  */
@@ -21,16 +55,15 @@ void bnxt_handle_async_event(struct bnxt *bp,
        struct hwrm_async_event_cmpl *async_cmp =
                                (struct hwrm_async_event_cmpl *)cmp;
        uint16_t event_id = rte_le_to_cpu_16(async_cmp->event_id);
+       struct bnxt_error_recovery_info *info;
        uint32_t event_data;
 
-       /* TODO: HWRM async events are not defined yet */
-       /* Needs to handle: link events, error events, etc. */
        switch (event_id) {
        case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
        case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
        case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
                /* FALLTHROUGH */
-               bnxt_link_update_op(bp->eth_dev, 1);
+               bnxt_link_update_op(bp->eth_dev, 0);
                break;
        case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
                PMD_DRV_LOG(INFO, "Async event: PF driver unloaded\n");
@@ -65,8 +98,43 @@ void bnxt_handle_async_event(struct bnxt *bp,
                rte_eal_alarm_set(US_PER_MS, bnxt_dev_reset_and_resume,
                                  (void *)bp);
                break;
+       case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
+               info = bp->recovery_info;
+
+               if (!info)
+                       return;
+
+               PMD_DRV_LOG(INFO, "Error recovery async event received\n");
+
+               event_data = rte_le_to_cpu_32(async_cmp->event_data1) &
+                               EVENT_DATA1_FLAGS_MASK;
+
+               if (event_data & EVENT_DATA1_FLAGS_MASTER_FUNC)
+                       info->flags |= BNXT_FLAG_MASTER_FUNC;
+               else
+                       info->flags &= ~BNXT_FLAG_MASTER_FUNC;
+
+               if (event_data & EVENT_DATA1_FLAGS_RECOVERY_ENABLED)
+                       info->flags |= BNXT_FLAG_RECOVERY_ENABLED;
+               else
+                       info->flags &= ~BNXT_FLAG_RECOVERY_ENABLED;
+
+               PMD_DRV_LOG(INFO, "recovery enabled(%d), master function(%d)\n",
+                           bnxt_is_recovery_enabled(bp),
+                           bnxt_is_master_func(bp));
+
+               if (bp->flags & BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED)
+                       return;
+
+               info->last_heart_beat =
+                       bnxt_read_fw_status_reg(bp, BNXT_FW_HEARTBEAT_CNT_REG);
+               info->last_reset_counter =
+                       bnxt_read_fw_status_reg(bp, BNXT_FW_RECOVERY_CNT_REG);
+
+               bnxt_schedule_fw_health_check(bp);
+               break;
        default:
-               PMD_DRV_LOG(INFO, "handle_async_event id = 0x%x\n", event_id);
+               PMD_DRV_LOG(DEBUG, "handle_async_event id = 0x%x\n", event_id);
                break;
        }
 }
@@ -183,9 +251,28 @@ int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp)
                break;
        default:
                /* Ignore any other events */
-               PMD_DRV_LOG(INFO, "Ignoring %02x completion\n", CMP_TYPE(cmp));
+               PMD_DRV_LOG(DEBUG, "Ignoring %02x completion\n", CMP_TYPE(cmp));
                break;
        }
 
        return evt;
 }
+
+bool bnxt_is_master_func(struct bnxt *bp)
+{
+       if (bp->recovery_info->flags & BNXT_FLAG_MASTER_FUNC)
+               return true;
+
+       return false;
+}
+
+bool bnxt_is_recovery_enabled(struct bnxt *bp)
+{
+       struct bnxt_error_recovery_info *info;
+
+       info = bp->recovery_info;
+       if (info && (info->flags & BNXT_FLAG_RECOVERY_ENABLED))
+               return true;
+
+       return false;
+}