From 03bfb6460688a8879a9a159167b3c8d36a4275ee Mon Sep 17 00:00:00 2001
From: Jonathan Toppins <jtoppins@redhat.com>
Date: Wed, 2 Oct 2019 18:23:27 -0400
Subject: [PATCH 72/96] [netdrv] bnxt_en: Handle RESET_NOTIFY async event from
firmware
Message-id: <3a807e3f42d2f73dd6a5c46ce3792861aabac0be.1570027456.git.jtoppins@redhat.com>
Patchwork-id: 276499
O-Subject: [RHEL-8.2 PATCH 65/78] bnxt_en: Handle RESET_NOTIFY async event from firmware.
Bugzilla: 1724766
RH-Acked-by: John Linville <linville@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
This event from firmware signals a coordinated reset initiated by the
firmware. It may be triggered by some error conditions encountered
in the firmware or other orderly reset conditions.
We store the parameters from this event. Subsequent patches will
add logic to handle reset itself using devlink reporters.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 2151fe0830fdb951f8ecfcfe67306fdef2366aa0)
Bugzilla: 1724766
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=23809532
Tested: build, boot, basic ping
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: Bruno Meneguele <bmeneg@redhat.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 11 +++++++++++
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 7 +++++++
2 files changed, 18 insertions(+)
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:19.749476077 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.c 2020-02-06 16:23:20.029473507 +0100
@@ -254,6 +254,7 @@
ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED,
ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE,
ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,
+ ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY,
ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY,
};
@@ -1981,6 +1982,16 @@
goto async_event_process_exit;
set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event);
break;
+ case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
+ bp->fw_reset_timestamp = jiffies;
+ bp->fw_reset_min_dsecs = cmpl->timestamp_lo;
+ if (!bp->fw_reset_min_dsecs)
+ bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS;
+ bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi);
+ if (!bp->fw_reset_max_dsecs)
+ bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS;
+ set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event);
+ break;
case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: {
struct bnxt_fw_health *fw_health = bp->fw_health;
u32 data1 = le32_to_cpu(cmpl->event_data1);
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.h
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.h 2020-02-06 16:23:19.896474728 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.h 2020-02-06 16:23:20.029473507 +0100
@@ -1719,6 +1719,13 @@
#define BNXT_FLOW_STATS_SP_EVENT 15
#define BNXT_UPDATE_PHY_SP_EVENT 16
#define BNXT_RING_COAL_NOW_SP_EVENT 17
+#define BNXT_FW_RESET_NOTIFY_SP_EVENT 18
+
+ u16 fw_reset_min_dsecs;
+#define BNXT_DFLT_FW_RST_MIN_DSECS 20
+ u16 fw_reset_max_dsecs;
+#define BNXT_DFLT_FW_RST_MAX_DSECS 60
+ unsigned long fw_reset_timestamp;
struct bnxt_fw_health *fw_health;