From patchwork Mon Jul 27 09:40:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Chan X-Patchwork-Id: 1336811 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=broadcom.com header.i=@broadcom.com header.a=rsa-sha256 header.s=google header.b=QpiNSOZP; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BFZZT64Cpz9sPf for ; Mon, 27 Jul 2020 19:41:37 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728195AbgG0Jlg (ORCPT ); Mon, 27 Jul 2020 05:41:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728133AbgG0Jlf (ORCPT ); Mon, 27 Jul 2020 05:41:35 -0400 Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3956C061794 for ; Mon, 27 Jul 2020 02:41:35 -0700 (PDT) Received: by mail-pg1-x542.google.com with SMTP id j19so9173175pgm.11 for ; Mon, 27 Jul 2020 02:41:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=XgOjzv1EdV6wnW0ljXZYGfHHCKyd+/XjPnyFswctSok=; b=QpiNSOZP7+J3URbuH0LjgC/ba2rEuSLbih+ZW27qnNwV4/trzSMOqeu4Dhe6zOw8UI /jTbBDTl+9/+OLvkWYbIFyUVCVbjHcRmqz7GVZA8lB1TD3w2beC9ABwndcNh19b9y/sA qd69Lsz9ICVq8UTCChejGJ6yQ3sfCcAJPbCCI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=XgOjzv1EdV6wnW0ljXZYGfHHCKyd+/XjPnyFswctSok=; b=dxJyUjyu5VwwIfUBgMvFHTpYtr2L9Cov3GtT7ArBa/Ma9dVqqMtH3AboS6GNj4xksJ Yb6gzyoUoR+l1XHnNwMIi0xpN0NShO8142Fd0z0uiBvWFiXl50Fv3gX/SuEmyXMPI3q5 Rq55rJMwrGBndu1gqh8jYTALkIgYBdJS50adFhGCQoaPep76ycLOK3bSElGhaJjdgP9I Qj8xjWWhgcYVyzo2jChHMn9EGfyNYqjDVWbjm/s808K1wSC2KyOthpOilvY4Pk3LGWHV cFcbZDerT+fOopgpFqigc/6cC4F7swAL3k+jHlpEvHMXEVS2RtKaEa4/24OMgcNSTknc /zGw== X-Gm-Message-State: AOAM533lQc1GjX4bMHEzDbTpVCAAc5eHGZxQubpkwabGe2LLCb8EAA+w 942xbewH/XTQRQuJmdGYNS+XUg== X-Google-Smtp-Source: ABdhPJzNgrfWYmNixj9LU4oHSRzFFwBJT7m+A46u5Scuyekikw6s4jj/WgzZY4/F0w//mQMCTVQqkg== X-Received: by 2002:aa7:9186:: with SMTP id x6mr19925440pfa.103.1595842895153; Mon, 27 Jul 2020 02:41:35 -0700 (PDT) Received: from localhost.swdvt.lab.broadcom.com ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id f131sm14560945pgc.14.2020.07.27.02.41.32 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Jul 2020 02:41:34 -0700 (PDT) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, kuba@kernel.org, Vasundhara Volam Subject: [PATCH net-next v2 10/10] bnxt_en: Add support for 'ethtool -d' Date: Mon, 27 Jul 2020 05:40:45 -0400 Message-Id: <1595842845-19403-11-git-send-email-michael.chan@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1595842845-19403-1-git-send-email-michael.chan@broadcom.com> References: <1595842845-19403-1-git-send-email-michael.chan@broadcom.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Vasundhara Volam Add support to dump PXP registers and PCIe statistics. Signed-off-by: Vasundhara Volam Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 32 +++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt.h | 5 +++ drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 55 +++++++++++++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h | 2 + 4 files changed, 94 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 014edd8..943345b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -10220,6 +10220,38 @@ static int bnxt_set_features(struct net_device *dev, netdev_features_t features) return rc; } +int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, + u32 *reg_buf) +{ + struct hwrm_dbg_read_direct_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_dbg_read_direct_input req = {0}; + __le32 *dbg_reg_buf; + dma_addr_t mapping; + int rc, i; + + dbg_reg_buf = dma_alloc_coherent(&bp->pdev->dev, num_words * 4, + &mapping, GFP_KERNEL); + if (!dbg_reg_buf) + return -ENOMEM; + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_READ_DIRECT, -1, -1); + req.host_dest_addr = cpu_to_le64(mapping); + req.read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR); + req.read_len32 = cpu_to_le32(num_words); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc || resp->error_code) { + rc = -EIO; + goto dbg_rd_reg_exit; + } + for (i = 0; i < num_words; i++) + reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]); + +dbg_rd_reg_exit: + mutex_unlock(&bp->hwrm_cmd_lock); + dma_free_coherent(&bp->pdev->dev, num_words * 4, dbg_reg_buf, mapping); + return rc; +} + static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type, u32 ring_id, u32 *prod, u32 *cons) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 0c9b79b..5a13eb6 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1304,6 +1304,9 @@ struct bnxt_test_info { char string[BNXT_MAX_TEST][ETH_GSTRING_LEN]; }; +#define CHIMP_REG_VIEW_ADDR \ + ((bp->flags & BNXT_FLAG_CHIP_P5) ? 0x80000000 : 0xb1000000) + #define BNXT_GRCPF_REG_CHIMP_COMM 0x0 #define BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER 0x100 #define BNXT_GRCPF_REG_WINDOW_BASE_OUT 0x400 @@ -2117,6 +2120,8 @@ int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bnxt_half_open_nic(struct bnxt *bp); void bnxt_half_close_nic(struct bnxt *bp); int bnxt_close_nic(struct bnxt *, bool, bool); +int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, + u32 *reg_buf); void bnxt_fw_exception(struct bnxt *bp); void bnxt_fw_reset(struct bnxt *bp); int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index ff380d7..7fd7997 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1324,6 +1324,59 @@ static void bnxt_get_drvinfo(struct net_device *dev, info->regdump_len = 0; } +static int bnxt_get_regs_len(struct net_device *dev) +{ + struct bnxt *bp = netdev_priv(dev); + int reg_len; + + reg_len = BNXT_PXP_REG_LEN; + + if (bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED) + reg_len += sizeof(struct pcie_ctx_hw_stats); + + return reg_len; +} + +static void bnxt_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *_p) +{ + struct pcie_ctx_hw_stats *hw_pcie_stats; + struct hwrm_pcie_qstats_input req = {0}; + struct bnxt *bp = netdev_priv(dev); + dma_addr_t hw_pcie_stats_addr; + int rc; + + regs->version = 0; + bnxt_dbg_hwrm_rd_reg(bp, 0, BNXT_PXP_REG_LEN / 4, _p); + + if (!(bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED)) + return; + + hw_pcie_stats = dma_alloc_coherent(&bp->pdev->dev, + sizeof(*hw_pcie_stats), + &hw_pcie_stats_addr, GFP_KERNEL); + if (!hw_pcie_stats) + return; + + regs->version = 1; + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PCIE_QSTATS, -1, -1); + req.pcie_stat_size = cpu_to_le16(sizeof(*hw_pcie_stats)); + req.pcie_stat_host_addr = cpu_to_le64(hw_pcie_stats_addr); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (!rc) { + __le64 *src = (__le64 *)hw_pcie_stats; + u64 *dst = (u64 *)(_p + BNXT_PXP_REG_LEN); + int i; + + for (i = 0; i < sizeof(*hw_pcie_stats) / sizeof(__le64); i++) + dst[i] = le64_to_cpu(src[i]); + } + mutex_unlock(&bp->hwrm_cmd_lock); + dma_free_coherent(&bp->pdev->dev, sizeof(*hw_pcie_stats), hw_pcie_stats, + hw_pcie_stats_addr); +} + static void bnxt_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct bnxt *bp = netdev_priv(dev); @@ -3596,6 +3649,8 @@ void bnxt_ethtool_free(struct bnxt *bp) .get_pauseparam = bnxt_get_pauseparam, .set_pauseparam = bnxt_set_pauseparam, .get_drvinfo = bnxt_get_drvinfo, + .get_regs_len = bnxt_get_regs_len, + .get_regs = bnxt_get_regs, .get_wol = bnxt_get_wol, .set_wol = bnxt_set_wol, .get_coalesce = bnxt_get_coalesce, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h index dddbca1..34f44dd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h @@ -84,6 +84,8 @@ struct hwrm_dbg_cmn_output { ETH_RESET_PHY | ETH_RESET_RAM) \ << ETH_RESET_SHARED_SHIFT) +#define BNXT_PXP_REG_LEN 0x3110 + extern const struct ethtool_ops bnxt_ethtool_ops; u32 bnxt_get_rxfh_indir_size(struct net_device *dev);