From patchwork Wed May 17 09:19:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Selvin Xavier X-Patchwork-Id: 9730507 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 EF461602DB for ; Wed, 17 May 2017 09:21:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EA14326E39 for ; Wed, 17 May 2017 09:21:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DEEC5286E7; Wed, 17 May 2017 09:21:15 +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=-6.3 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, 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 3046626E39 for ; Wed, 17 May 2017 09:21:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753757AbdEQJVO (ORCPT ); Wed, 17 May 2017 05:21:14 -0400 Received: from mail-qt0-f174.google.com ([209.85.216.174]:33859 "EHLO mail-qt0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753706AbdEQJVM (ORCPT ); Wed, 17 May 2017 05:21:12 -0400 Received: by mail-qt0-f174.google.com with SMTP id c13so4540086qtc.1 for ; Wed, 17 May 2017 02:21:12 -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=tBRkk9HpoDiPyfBVukb2vIehvqU8udFDU6mSYKc2D+U=; b=LuBfbv3pWjQmugfn5IqBgycmo3gt6e212x8wa+06c+aLP/8R6DEriJljMQrA6+UqRn GHpNqtx/2blzGTlA6CXfJ0P7U6AkNRWUdKOAuU27OVC5P8VcrcoQrTByDV0CPq3/rjyY WFIOFDlb0GZN9ivNy0wkOpQI3OTb+N/Igak6A= 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=tBRkk9HpoDiPyfBVukb2vIehvqU8udFDU6mSYKc2D+U=; b=hlkLIyg9f/xpm3VGHu7+iQwz6SuZI4b0/XkiK60Skr/EJcIBz1qKGtP2lHTQaHh4Uj bi0qYgsDq/OUeNMw41WrWCK0UZVi49LL0Dpw/YHzdUliRSalCgwFWosfple43QqNFIGo I2iq7/7ZxtTCpDnoB86aVoM/h8qepWLXCCcmcmJiOmmHS/tQgOjMSztWFptmZIal/eU3 09l1NM8DquvgXfrnqDURUgyQ52MiWrIP0XJILXkoJkAhJDUacsJBHBxYDktNf4DL5uba TOV7Jwav2y6raEs4FMDCeey+JeCHUMOLCiHS6KAzSwNUuLn4v6ELFDRFPZMygnghM0qq 1uaw== X-Gm-Message-State: AODbwcCF6SE9HH93e+trIe6Hn5MKhx4h5I9dwUKUtvqwmkx39OriFPvw Y3J/5jj94Xw87sdIADI= X-Received: by 10.237.35.69 with SMTP id i5mr2327981qtc.25.1495012871656; Wed, 17 May 2017 02:21:11 -0700 (PDT) Received: from dhcp-10-192-206-197.iig.avagotech.net ([192.19.239.250]) by smtp.gmail.com with ESMTPSA id t136sm998431qke.40.2017.05.17.02.21.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 17 May 2017 02:21:10 -0700 (PDT) From: Selvin Xavier To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, Kalesh AP , Selvin Xavier Subject: [PATCH V2 for-next 08/15] RDMA/bnxt_re: Add vlan tag for untagged RoCE traffic when PFC is configured Date: Wed, 17 May 2017 02:19:44 -0700 Message-Id: <1495012791-5053-9-git-send-email-selvin.xavier@broadcom.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1495012791-5053-1-git-send-email-selvin.xavier@broadcom.com> References: <1495012791-5053-1-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. v1 -> v2: Avoid unnecessary memcpy while populating smac and gid Signed-off-by: Kalesh AP Signed-off-by: Selvin Xavier --- 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 | 71 +++++++++++++++++++++++++++---- drivers/infiniband/hw/bnxt_re/qplib_sp.h | 2 + drivers/infiniband/hw/bnxt_re/roce_hsi.h | 4 +- 6 files changed, 125 insertions(+), 17 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 99a54fd..fd61949 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -840,6 +840,42 @@ 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; @@ -859,8 +895,6 @@ 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; } @@ -886,10 +920,7 @@ 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; @@ -911,6 +942,16 @@ 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..36f45ff 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", @@ -249,25 +250,33 @@ 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]; + u32 *temp32; + u16 *temp16; int rc; RCFW_CMD_PREP(req, ADD_GID, cmd_flags); - memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid)); + temp32 = (u32 *)gid->data; 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); + /* + * 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); + temp16 = (u16 *)smac; 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]); @@ -281,6 +290,9 @@ 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 +302,47 @@ 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; + u32 *temp32; + u16 *temp16; + + RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); + + temp32 = (u32 *)gid->data; + 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 (res->prio) { + req.vlan |= cpu_to_le16 + (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | + CMDQ_ADD_GID_VLAN_VLAN_EN); + } + + /* MAC in network format */ + temp16 = (u16 *)smac; + 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.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