From patchwork Wed Jun 21 17:18:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Selvin Xavier X-Patchwork-Id: 9802353 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3BA5F60329 for ; Wed, 21 Jun 2017 17:19:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8734C2853C for ; Wed, 21 Jun 2017 17:19:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7B24B2860F; Wed, 21 Jun 2017 17:19:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 66E022853C for ; Wed, 21 Jun 2017 17:19:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752081AbdFURT3 (ORCPT ); Wed, 21 Jun 2017 13:19:29 -0400 Received: from mail-wr0-f172.google.com ([209.85.128.172]:36156 "EHLO mail-wr0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751961AbdFURT3 (ORCPT ); Wed, 21 Jun 2017 13:19:29 -0400 Received: by mail-wr0-f172.google.com with SMTP id c11so88250750wrc.3 for ; Wed, 21 Jun 2017 10:19:28 -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=Vv5mN+YY5JZt9c74Pu92tKRxjcTS4CRiWkQDbKDe9so=; b=g6RDAtrKMQ133IYFZWA7kZzZ5ZYtpJbobEk/UYudlVn5IrAylkimmPohv/DoJutmwi GfMvyIhuJr5Vl3cJbZ9FS8eMUCgkHMwaEDVHjeMzI3V9BMFPtrd5+5exUDFnuT0+OJhw 0AnOuaW42aFY3GHJktEUbQpsVxT9n/yrWKwck= 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=Vv5mN+YY5JZt9c74Pu92tKRxjcTS4CRiWkQDbKDe9so=; b=fkKX3WS9x0NMLMupmed1buWpl4mIeWqkprwc1AG5II5tTfuCYFTJViQkwh0riGU/O1 IB0bpDR4v+7dnCfgaNoyJHGE+PZ+HIB2zKWT6g/f8pqHeelmHL0dhnkQVfBoXdjE46he d1yfk4Z1ihmCMdXdJxL0xLxq0eL3wc3aRwHx4tk5BNSZm3NfsQel7hVUiSHJYzWqGEc6 U5C1+SX4YhMBduHCO8edECkOGZu/bJkgqBY2UCQk6eh+xt0w7AgfZKeTVv8BU5ORyDju 72oVtAh29FLx/SchbcSJ41HGywmuF41W5YRxzjOmOviIjxU/t3Y4ySJRfAHg+5DCl4Eb 8V+Q== X-Gm-Message-State: AKS2vOwss53DPgV5+7XYHCI7VfSoliXGTaFkC2UB7e5FIEY9Keg67FPO o/x58CMDZHE0PIRj X-Received: by 10.223.147.132 with SMTP id 4mr14194554wrp.107.1498065567338; Wed, 21 Jun 2017 10:19:27 -0700 (PDT) Received: from dhcp-10-192-206-197.iig.avagotech.net ([192.19.239.250]) by smtp.gmail.com with ESMTPSA id n64sm7446955wmd.24.2017.06.21.10.19.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Jun 2017 10:19:26 -0700 (PDT) From: Selvin Xavier To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, Kalesh AP , Selvin Xavier Subject: [PATCH for-next 04/13] RDMA/bnxt_re: Add vlan tag for untagged RoCE traffic when PFC is configured Date: Wed, 21 Jun 2017 10:18:15 -0700 Message-Id: <1498065504-27902-5-git-send-email-selvin.xavier@broadcom.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1498065504-27902-1-git-send-email-selvin.xavier@broadcom.com> References: <1498065504-27902-1-git-send-email-selvin.xavier@broadcom.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kalesh AP Current implementation does not program vlan header insertion in RoCE packet if no vlan is configured. Firmware does not add prority when there is no vlan tag in the packet. Modify the code to insert vlan header when PFC is enabled on the interface. Signed-off-by: Kalesh AP Signed-off-by: Selvin Xavier Reviewed-by: Leon Romanovsky --- drivers/infiniband/hw/bnxt_re/main.c | 53 ++++++++++++++++++--- drivers/infiniband/hw/bnxt_re/qplib_res.c | 10 ++++ drivers/infiniband/hw/bnxt_re/qplib_res.h | 2 + drivers/infiniband/hw/bnxt_re/qplib_sp.c | 77 ++++++++++++++++++++++++------- drivers/infiniband/hw/bnxt_re/qplib_sp.h | 2 + drivers/infiniband/hw/bnxt_re/roce_hsi.h | 4 +- 6 files changed, 124 insertions(+), 24 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 91b5208..df4d1df 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -836,6 +836,42 @@ static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev) mutex_unlock(&rdev->qp_lock); } +static int bnxt_re_update_gid(struct bnxt_re_dev *rdev) +{ + struct bnxt_qplib_sgid_tbl *sgid_tbl = &rdev->qplib_res.sgid_tbl; + struct bnxt_qplib_gid gid; + u16 gid_idx, index; + int rc = 0; + + if (!test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) + return 0; + + if (!sgid_tbl) { + dev_err(rdev_to_dev(rdev), "QPLIB: SGID table not allocated"); + return -EINVAL; + } + + for (index = 0; index < sgid_tbl->active; index++) { + gid_idx = sgid_tbl->hw_id[index]; + + if (!memcmp(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero, + sizeof(bnxt_qplib_gid_zero))) + continue; + /* need to modify the VLAN enable setting of non VLAN GID only + * as setting is done for VLAN GID while adding GID + */ + if (sgid_tbl->vlan[index]) + continue; + + memcpy(&gid, &sgid_tbl->tbl[index], sizeof(gid)); + + rc = bnxt_qplib_update_sgid(sgid_tbl, &gid, gid_idx, + rdev->qplib_res.netdev->dev_addr); + } + + return rc; +} + static u32 bnxt_re_get_priority_mask(struct bnxt_re_dev *rdev) { u32 prio_map = 0, tmp_map = 0; @@ -855,8 +891,6 @@ static u32 bnxt_re_get_priority_mask(struct bnxt_re_dev *rdev) tmp_map = dcb_ieee_getapp_mask(netdev, &app); prio_map |= tmp_map; - if (!prio_map) - prio_map = -EFAULT; return prio_map; } @@ -882,10 +916,7 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) int rc; /* Get priority for roce */ - rc = bnxt_re_get_priority_mask(rdev); - if (rc < 0) - return rc; - prio_map = (u8)rc; + prio_map = bnxt_re_get_priority_mask(rdev); if (prio_map == rdev->cur_prio_map) return 0; @@ -907,6 +938,16 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) return rc; } + /* Actual priorities are not programmed as they are already + * done by L2 driver; just enable or disable priority vlan tagging + */ + if ((prio_map == 0 && rdev->qplib_res.prio) || + (prio_map != 0 && !rdev->qplib_res.prio)) { + rdev->qplib_res.prio = prio_map ? true : false; + + bnxt_re_update_gid(rdev); + } + return 0; } diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.c b/drivers/infiniband/hw/bnxt_re/qplib_res.c index 62447b3..4e10170 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c @@ -468,9 +468,11 @@ static void bnxt_qplib_free_sgid_tbl(struct bnxt_qplib_res *res, kfree(sgid_tbl->tbl); kfree(sgid_tbl->hw_id); kfree(sgid_tbl->ctx); + kfree(sgid_tbl->vlan); sgid_tbl->tbl = NULL; sgid_tbl->hw_id = NULL; sgid_tbl->ctx = NULL; + sgid_tbl->vlan = NULL; sgid_tbl->max = 0; sgid_tbl->active = 0; } @@ -491,8 +493,15 @@ static int bnxt_qplib_alloc_sgid_tbl(struct bnxt_qplib_res *res, if (!sgid_tbl->ctx) goto out_free2; + sgid_tbl->vlan = kcalloc(max, sizeof(u8), GFP_KERNEL); + if (!sgid_tbl->vlan) + goto out_free3; + sgid_tbl->max = max; return 0; +out_free3: + kfree(sgid_tbl->ctx); + sgid_tbl->ctx = NULL; out_free2: kfree(sgid_tbl->hw_id); sgid_tbl->hw_id = NULL; @@ -514,6 +523,7 @@ static void bnxt_qplib_cleanup_sgid_tbl(struct bnxt_qplib_res *res, } memset(sgid_tbl->tbl, 0, sizeof(struct bnxt_qplib_gid) * sgid_tbl->max); memset(sgid_tbl->hw_id, -1, sizeof(u16) * sgid_tbl->max); + memset(sgid_tbl->vlan, 0, sizeof(u8) * sgid_tbl->max); sgid_tbl->active = 0; } diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h index 2e48555..e872075 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h @@ -116,6 +116,7 @@ struct bnxt_qplib_sgid_tbl { u16 max; u16 active; void *ctx; + u8 *vlan; }; struct bnxt_qplib_pkey_tbl { @@ -188,6 +189,7 @@ struct bnxt_qplib_res { struct bnxt_qplib_sgid_tbl sgid_tbl; struct bnxt_qplib_pkey_tbl pkey_tbl; struct bnxt_qplib_dpi_tbl dpi_tbl; + bool prio; }; #define to_bnxt_qplib(ptr, type, member) \ diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c index fde18cf..5a633b4 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -197,6 +197,7 @@ int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, } memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero, sizeof(bnxt_qplib_gid_zero)); + sgid_tbl->vlan[index] = 0; sgid_tbl->active--; dev_dbg(&res->pdev->dev, "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x", @@ -249,28 +250,32 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, struct cmdq_add_gid req; struct creq_add_gid_resp resp; u16 cmd_flags = 0; - u32 temp32[4]; - u16 temp16[3]; int rc; RCFW_CMD_PREP(req, ADD_GID, cmd_flags); - memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid)); - req.gid[0] = cpu_to_be32(temp32[3]); - req.gid[1] = cpu_to_be32(temp32[2]); - req.gid[2] = cpu_to_be32(temp32[1]); - req.gid[3] = cpu_to_be32(temp32[0]); - if (vlan_id != 0xFFFF) - req.vlan = cpu_to_le16((vlan_id & - CMDQ_ADD_GID_VLAN_VLAN_ID_MASK) | - CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | - CMDQ_ADD_GID_VLAN_VLAN_EN); + req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); + req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); + req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); + req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); + /* + * driver should ensure that all RoCE traffic is always VLAN + * tagged if RoCE traffic is running on non-zero VLAN ID or + * RoCE traffic is running on non-zero Priority. + */ + if ((vlan_id != 0xFFFF) || res->prio) { + if (vlan_id != 0xFFFF) + req.vlan = cpu_to_le16 + (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK); + req.vlan |= cpu_to_le16 + (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | + CMDQ_ADD_GID_VLAN_VLAN_EN); + } /* MAC in network format */ - memcpy(temp16, smac, 6); - req.src_mac[0] = cpu_to_be16(temp16[0]); - req.src_mac[1] = cpu_to_be16(temp16[1]); - req.src_mac[2] = cpu_to_be16(temp16[2]); + req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); + req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); + req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL, 0); @@ -281,6 +286,9 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, /* Add GID to the sgid_tbl */ memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); sgid_tbl->active++; + if (vlan_id != 0xFFFF) + sgid_tbl->vlan[free_idx] = 1; + dev_dbg(&res->pdev->dev, "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x", free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); @@ -290,6 +298,43 @@ int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, return 0; } +int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, + struct bnxt_qplib_gid *gid, u16 gid_idx, + u8 *smac) +{ + struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, + struct bnxt_qplib_res, + sgid_tbl); + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct creq_modify_gid_resp resp; + struct cmdq_modify_gid req; + int rc; + u16 cmd_flags = 0; + + RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); + + req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); + req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); + req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); + req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); + if (res->prio) { + req.vlan |= cpu_to_le16 + (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | + CMDQ_ADD_GID_VLAN_VLAN_EN); + } + + /* MAC in network format */ + req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); + req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); + req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); + + req.gid_index = cpu_to_le16(gid_idx); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + return rc; +} + /* pkeys */ int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h index a543f95..e3a3ed9 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h @@ -132,6 +132,8 @@ int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, struct bnxt_qplib_gid *gid, u8 *mac, u16 vlan_id, bool update, u32 *index); +int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, + struct bnxt_qplib_gid *gid, u16 gid_idx, u8 *smac); int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, u16 *pkey); diff --git a/drivers/infiniband/hw/bnxt_re/roce_hsi.h b/drivers/infiniband/hw/bnxt_re/roce_hsi.h index fc23477..eeb55b2 100644 --- a/drivers/infiniband/hw/bnxt_re/roce_hsi.h +++ b/drivers/infiniband/hw/bnxt_re/roce_hsi.h @@ -1473,8 +1473,8 @@ struct cmdq_modify_gid { u8 resp_size; u8 reserved8; __le64 resp_addr; - __le32 gid[4]; - __le16 src_mac[3]; + __be32 gid[4]; + __be16 src_mac[3]; __le16 vlan; #define CMDQ_MODIFY_GID_VLAN_VLAN_ID_MASK 0xfffUL #define CMDQ_MODIFY_GID_VLAN_VLAN_ID_SFT 0