[PATCH v2 13/18] net/bnxt: add VF FLR async event handler

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

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From: Jay Ding <jay.ding@broadcom.com>

When a VF undergoes an FLR, the firmware indicates this via
an async notification to the PF. Note that the PF driver
needs to register for the notification with the firmware.
Add support for VF_FLR async event handling when the driver
is running on a PF.

Signed-off-by: Jay Ding <jay.ding@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_cpr.c  | 20 ++++++++++++++++++++
 drivers/net/bnxt/bnxt_hwrm.c |  6 ++++--
 drivers/net/bnxt/bnxt_hwrm.h |  2 ++
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_cpr.c b/drivers/net/bnxt/bnxt_cpr.c
index 0733cf4df2..fb43bc58da 100644
--- a/drivers/net/bnxt/bnxt_cpr.c
+++ b/drivers/net/bnxt/bnxt_cpr.c
@@ -127,6 +127,23 @@ void bnxt_handle_vf_cfg_change(void *arg)
 	}
 }
 
+static void
+bnxt_process_vf_flr(struct bnxt *bp, uint32_t data1)
+{
+	uint16_t pfid, vfid;
+
+	if (!BNXT_TRUFLOW_EN(bp))
+		return;
+
+	pfid = (data1 & HWRM_ASYNC_EVENT_CMPL_VF_FLR_EVENT_DATA1_PF_ID_MASK) >>
+		HWRM_ASYNC_EVENT_CMPL_VF_FLR_EVENT_DATA1_PF_ID_SFT;
+	vfid = (data1 & HWRM_ASYNC_EVENT_CMPL_VF_FLR_EVENT_DATA1_VF_ID_MASK) >>
+		HWRM_ASYNC_EVENT_CMPL_VF_FLR_EVENT_DATA1_VF_ID_SFT;
+
+	PMD_DRV_LOG(INFO, "VF FLR async event received pfid: %u, vfid: %u\n",
+		    pfid, vfid);
+}
+
 /*
  * Async event handling
  */
@@ -264,6 +281,9 @@ void bnxt_handle_async_event(struct bnxt *bp,
 	case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT:
 		bnxt_handle_event_error_report(bp, data1, data2);
 		break;
+	case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_FLR:
+		bnxt_process_vf_flr(bp, data1);
+		break;
 	default:
 		PMD_DRV_LOG(DEBUG, "handle_async_event id = 0x%x\n", event_id);
 		break;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 1ac3f30074..3c16abea69 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1125,9 +1125,11 @@ int bnxt_hwrm_func_driver_register(struct bnxt *bp)
 		req.async_event_fwd[1] |=
 			rte_cpu_to_le_32(ASYNC_CMPL_EVENT_ID_DBG_NOTIFICATION);
 
-	if (BNXT_PF(bp) || BNXT_VF_IS_TRUSTED(bp))
+	if (BNXT_PF(bp) || BNXT_VF_IS_TRUSTED(bp)) {
 		req.async_event_fwd[1] |=
-		rte_cpu_to_le_32(ASYNC_CMPL_EVENT_ID_DEFAULT_VNIC_CHANGE);
+		rte_cpu_to_le_32(ASYNC_CMPL_EVENT_ID_DEFAULT_VNIC_CHANGE |
+				 ASYNC_CMPL_EVENT_ID_VF_FLR);
+	}
 
 	req.async_event_fwd[2] |=
 		rte_cpu_to_le_32(ASYNC_CMPL_EVENT_ID_ECHO_REQUEST |
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index 56b232d7de..6116253787 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -29,6 +29,8 @@ struct hwrm_func_qstats_output;
 	(1 << HWRM_ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY)
 #define ASYNC_CMPL_EVENT_ID_PF_DRVR_UNLOAD	\
 	(1 << (HWRM_ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD - 32))
+#define ASYNC_CMPL_EVENT_ID_VF_FLR \
+	(1 << (HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_FLR - 32))
 #define ASYNC_CMPL_EVENT_ID_VF_CFG_CHANGE	\
 	(1 << (HWRM_ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE - 32))
 #define ASYNC_CMPL_EVENT_ID_DBG_NOTIFICATION	\
-- 
2.39.2 (Apple Git-143)


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