From patchwork Mon Mar 4 09:01:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Brandes, Shai" X-Patchwork-Id: 137859 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BE8D043B9B; Mon, 4 Mar 2024 10:05:09 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 07FA042DF5; Mon, 4 Mar 2024 10:02:18 +0100 (CET) Received: from smtp-fw-80006.amazon.com (smtp-fw-80006.amazon.com [99.78.197.217]) by mails.dpdk.org (Postfix) with ESMTP id 198CD41104 for ; Mon, 4 Mar 2024 10:02:09 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1709542931; x=1741078931; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=kGjI26OluZC/yGm2tfrfMGOLNR/eDMMhotlH2/wVm9s=; b=HdnuJiMCfNNF7NQ5AFrfET6m1duVjLwu0kKNTHSiZ8LQS0pRYzUA8ipt +eY//M6rg0oidfGB8LwWEVk56jfvkQsulasRQhsQ9nmJrxnYUGU0VWazl go+s+k3wi64EFTGII9ObtMoXBGBdeWI2fc5uEKlsr+pQg7ai+ziDbJ617 8=; X-IronPort-AV: E=Sophos;i="6.06,203,1705363200"; d="scan'208";a="277460759" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO smtpout.prod.us-west-2.prod.farcaster.email.amazon.dev) ([10.25.36.214]) by smtp-border-fw-80006.pdx80.corp.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2024 09:02:10 +0000 Received: from EX19MTAEUA002.ant.amazon.com [10.0.43.254:56754] by smtpin.naws.eu-west-1.prod.farcaster.email.amazon.dev [10.0.41.19:2525] with esmtp (Farcaster) id e527b510-d793-4f64-ab0e-83dedeac39c3; Mon, 4 Mar 2024 09:02:08 +0000 (UTC) X-Farcaster-Flow-ID: e527b510-d793-4f64-ab0e-83dedeac39c3 Received: from EX19D007EUB002.ant.amazon.com (10.252.51.117) by EX19MTAEUA002.ant.amazon.com (10.252.50.124) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Mon, 4 Mar 2024 09:02:08 +0000 Received: from EX19MTAUEC001.ant.amazon.com (10.252.135.222) by EX19D007EUB002.ant.amazon.com (10.252.51.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Mon, 4 Mar 2024 09:02:08 +0000 Received: from HFA15-CG15235BS.amazon.com (10.1.212.49) by mail-relay.amazon.com (10.252.135.200) with Microsoft SMTP Server id 15.2.1258.28 via Frontend Transport; Mon, 4 Mar 2024 09:02:07 +0000 From: To: CC: , Shai Brandes Subject: [PATCH 19/33] net/ena/hal: missing admin interrupt reset reason Date: Mon, 4 Mar 2024 11:01:22 +0200 Message-ID: <20240304090136.861-20-shaibran@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240304090136.861-1-shaibran@amazon.com> References: <20240304090136.861-1-shaibran@amazon.com> MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Shai Brandes There can be cases when we trigger reset if an admin interrupt is missing. In order to identify this use-case specifically, this commit adds a new reset reason. Signed-off-by: Shai Brandes Reviewed-by: Amit Bernstein --- drivers/net/ena/hal/ena_com.c | 2 ++ drivers/net/ena/hal/ena_com.h | 12 ++++++++++++ drivers/net/ena/hal/ena_defs/ena_regs_defs.h | 1 + 3 files changed, 15 insertions(+) diff --git a/drivers/net/ena/hal/ena_com.c b/drivers/net/ena/hal/ena_com.c index f20879613b..0d1f4dd715 100644 --- a/drivers/net/ena/hal/ena_com.c +++ b/drivers/net/ena/hal/ena_com.c @@ -803,6 +803,7 @@ static int ena_com_wait_and_process_admin_cq_interrupts(struct ena_comp_ctx *com ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags); if (comp_ctx->status == ENA_CMD_COMPLETED) { + admin_queue->is_missing_admin_interrupt = true; ena_trc_err(admin_queue->ena_dev, "The ena device sent a completion but the driver didn't receive a MSI-X interrupt (cmd %d), autopolling mode is %s\n", comp_ctx->cmd_opcode, admin_queue->auto_polling ? "ON" : "OFF"); @@ -2138,6 +2139,7 @@ int ena_com_admin_init(struct ena_com_dev *ena_dev, admin_queue->ena_dev = ena_dev; admin_queue->running_state = true; + admin_queue->is_missing_admin_interrupt = false; return 0; error: diff --git a/drivers/net/ena/hal/ena_com.h b/drivers/net/ena/hal/ena_com.h index c62016cc06..c999cd2381 100644 --- a/drivers/net/ena/hal/ena_com.h +++ b/drivers/net/ena/hal/ena_com.h @@ -237,6 +237,8 @@ struct ena_com_admin_queue { */ bool running_state; + bool is_missing_admin_interrupt; + /* Count the number of outstanding admin commands */ ena_atomic32_t outstanding_cmds; @@ -1089,6 +1091,16 @@ int ena_com_config_dev_mode(struct ena_com_dev *ena_dev, struct ena_admin_feature_llq_desc *llq_features, struct ena_llq_configurations *llq_default_config); +/* ena_com_get_missing_admin_interrupt - Return if there is a missing admin interrupt + * @ena_dev: ENA communication layer struct + * + * @return - true if there is a missing admin interrupt or false otherwise + */ +static inline bool ena_com_get_missing_admin_interrupt(struct ena_com_dev *ena_dev) +{ + return ena_dev->admin_queue.is_missing_admin_interrupt; +} + /* ena_com_io_sq_to_ena_dev - Extract ena_com_dev using contained field io_sq. * @io_sq: IO submit queue struct * diff --git a/drivers/net/ena/hal/ena_defs/ena_regs_defs.h b/drivers/net/ena/hal/ena_defs/ena_regs_defs.h index a94025dc77..db6a97d675 100644 --- a/drivers/net/ena/hal/ena_defs/ena_regs_defs.h +++ b/drivers/net/ena/hal/ena_defs/ena_regs_defs.h @@ -24,6 +24,7 @@ enum ena_regs_reset_reason_types { ENA_REGS_RESET_SUSPECTED_POLL_STARVATION = 15, ENA_REGS_RESET_RX_DESCRIPTOR_MALFORMED = 16, ENA_REGS_RESET_TX_DESCRIPTOR_MALFORMED = 17, + ENA_REGS_RESET_MISSING_ADMIN_INTERRUPT = 18, ENA_REGS_RESET_LAST, };