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