From patchwork Wed Dec 7 17:53:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067483 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93F38C4708E for ; Wed, 7 Dec 2022 17:53:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230164AbiLGRx1 (ORCPT ); Wed, 7 Dec 2022 12:53:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230145AbiLGRxU (ORCPT ); Wed, 7 Dec 2022 12:53:20 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A1892F658 for ; Wed, 7 Dec 2022 09:53:18 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id o12so18341085pjo.4 for ; Wed, 07 Dec 2022 09:53:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=qJv7bGfvdMihyi89+/DaGwpoeGXjCAj82T/USNxxpUI=; b=PCz4EErgkdh+OT9miJSrnrUo8+Aaev6xkgyfUAmuHPmR8uFBCHpis8O7ajMO4G1p47 +EjiE38S1AB3W5tDfpVID8WUAex1qZYgOz8bbB1fF9BD/w2oLc+Akwds5+dtARU0V9Gi PRkhDDXRlLFcQEFKtVRL96VfOVemMOisjVQBs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=qJv7bGfvdMihyi89+/DaGwpoeGXjCAj82T/USNxxpUI=; b=D99tTzWpk38CRYCorLo8P7/lCmIcOHw+a1ZwpedS4m1OeHyFmJETWFkivyiLAICqhc VHZd+pbrjvCRQ6OXRL185Rjm7tGmbi2XnKwXjP2CFKKq2wXQr6o83aF5702xMKWu3Jvs IlC80/oyu2EbgX9d80AUs3R6o5wUuzjh2f/YXKZOGLK0JaHNhocJItHgY354BZ/hlOxH LrJdjxN9v1ZOecq0IETV1WBk7xVGnjMiVHzoFSC6j1ssVbyRw9Y4eZXK0bEk+2lZPgSR iiRmUVcL1z8+rNUHrcH9y27fC+IPcTxIlThqXJv5q9IqLM+cJgk/+x+4wl8BG3JCqFgr UEJA== X-Gm-Message-State: ANoB5pmJnzsqI/l2aNgD+LmUPmuvVEQqxMr2HKecD9Odh4pOtJ1Os0N4 9UWOldwoGgKoQKp/mrgIpb7bhw== X-Google-Smtp-Source: AA0mqf6t87kRUZ5z72BmSR6QlfAmNy3Vgad5/4otQpF4oij+QNA52rR3HMOlmX50G/YNS9/dTO70UA== X-Received: by 2002:a17:902:d389:b0:189:cea0:bc98 with SMTP id e9-20020a170902d38900b00189cea0bc98mr18470152pld.70.1670435597639; Wed, 07 Dec 2022 09:53:17 -0800 (PST) Received: from C02GC2QQMD6T.wifi.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id l6-20020a622506000000b005748aca80fesm13862242pfl.32.2022.12.07.09.53.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Dec 2022 09:53:17 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com Subject: [PATCH v5 1/7] bnxt_en: Add auxiliary driver support Date: Wed, 7 Dec 2022 09:53:04 -0800 Message-Id: <20221207175310.23656-2-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Add auxiliary driver support. An auxiliary device will be created if the hardware indicates support for RDMA. The bnxt_ulp_probe() function has been removed and a new bnxt_rdma_aux_device_add() function has been added. The bnxt_free_msix_vecs() and bnxt_req_msix_vecs() will now hold the RTNL lock when they call the bnxt_close_nic()and bnxt_open_nic() since the device close and open need to be protected under RTNL lock. The operations between the bnxt_en and bnxt_re will be protected using the en_ops_lock. This will be used by the bnxt_re driver in a follow-on patch to create ROCE interfaces. Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 +- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 8 + drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 177 +++++++++++++++--- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 7 +- 4 files changed, 169 insertions(+), 31 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 0fe164b42c5d..2769d36b7d39 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -13154,6 +13154,9 @@ static void bnxt_remove_one(struct pci_dev *pdev) struct net_device *dev = pci_get_drvdata(pdev); struct bnxt *bp = netdev_priv(dev); + bnxt_rdma_aux_device_uninit(bp->aux_dev); + bnxt_aux_dev_free(bp); + if (BNXT_PF(bp)) bnxt_sriov_disable(bp); @@ -13747,11 +13750,13 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) bnxt_dl_fw_reporters_create(bp); + bnxt_rdma_aux_device_init(bp); + bnxt_print_device_info(bp); pci_save_state(pdev); - return 0; + return 0; init_err_cleanup: bnxt_dl_unregister(bp); init_err_dl: @@ -13795,7 +13800,6 @@ static void bnxt_shutdown(struct pci_dev *pdev) if (netif_running(dev)) dev_close(dev); - bnxt_ulp_shutdown(bp); bnxt_clear_int_mode(bp); pci_disable_device(pdev); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 41c6dd0ae447..04181f6e8a17 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -1623,6 +1624,12 @@ struct bnxt_fw_health { #define BNXT_FW_IF_RETRY 10 #define BNXT_FW_SLOT_RESET_RETRY 4 +struct bnxt_aux_dev { + struct auxiliary_device aux_dev; + struct bnxt_en_dev *edev; + int id; +}; + enum board_idx { BCM57301, BCM57302, @@ -1844,6 +1851,7 @@ struct bnxt { #define BNXT_CHIP_P4_PLUS(bp) \ (BNXT_CHIP_P4(bp) || BNXT_CHIP_P5(bp)) + struct bnxt_aux_dev *aux_dev; struct bnxt_en_dev *edev; struct bnxt_napi **bnapi; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 2e54bf4fc7a7..7ffd61ec2683 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -25,32 +25,37 @@ #include "bnxt_hwrm.h" #include "bnxt_ulp.h" +static DEFINE_IDA(bnxt_aux_dev_ids); + static int bnxt_register_dev(struct bnxt_en_dev *edev, unsigned int ulp_id, struct bnxt_ulp_ops *ulp_ops, void *handle) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); struct bnxt_ulp *ulp; + int rc = 0; - ASSERT_RTNL(); if (ulp_id >= BNXT_MAX_ULP) return -EINVAL; ulp = &edev->ulp_tbl[ulp_id]; if (rcu_access_pointer(ulp->ulp_ops)) { netdev_err(bp->dev, "ulp id %d already registered\n", ulp_id); - return -EBUSY; + rc = -EBUSY; + goto exit; } if (ulp_id == BNXT_ROCE_ULP) { unsigned int max_stat_ctxs; max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp); if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS || - bp->cp_nr_rings == max_stat_ctxs) - return -ENOMEM; + bp->cp_nr_rings == max_stat_ctxs) { + rc = -ENOMEM; + goto exit; + } } - atomic_set(&ulp->ref_count, 0); + atomic_set(&ulp->ref_count, 1); ulp->handle = handle; rcu_assign_pointer(ulp->ulp_ops, ulp_ops); @@ -59,7 +64,8 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, unsigned int ulp_id, bnxt_hwrm_vnic_cfg(bp, 0); } - return 0; +exit: + return rc; } static int bnxt_unregister_dev(struct bnxt_en_dev *edev, unsigned int ulp_id) @@ -69,10 +75,11 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, unsigned int ulp_id) struct bnxt_ulp *ulp; int i = 0; - ASSERT_RTNL(); if (ulp_id >= BNXT_MAX_ULP) return -EINVAL; + edev->flags |= BNXT_EN_FLAG_ULP_STOPPED; + ulp = &edev->ulp_tbl[ulp_id]; if (!rcu_access_pointer(ulp->ulp_ops)) { netdev_err(bp->dev, "ulp id %d not registered\n", ulp_id); @@ -126,7 +133,6 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, int total_vecs; int rc = 0; - ASSERT_RTNL(); if (ulp_id != BNXT_ROCE_ULP) return -EINVAL; @@ -149,6 +155,7 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, max_idx = min_t(int, bp->total_irqs, max_cp_rings); idx = max_idx - avail_msix; } + edev->ulp_tbl[ulp_id].msix_base = idx; edev->ulp_tbl[ulp_id].msix_requested = avail_msix; hw_resc = &bp->hw_resc; @@ -156,8 +163,10 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, if (bp->total_irqs < total_vecs || (BNXT_NEW_RM(bp) && hw_resc->resv_irqs < total_vecs)) { if (netif_running(dev)) { + rtnl_lock(); bnxt_close_nic(bp, true, false); rc = bnxt_open_nic(bp, true, false); + rtnl_unlock(); } else { rc = bnxt_reserve_rings(bp, true); } @@ -184,7 +193,6 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id) struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); - ASSERT_RTNL(); if (ulp_id != BNXT_ROCE_ULP) return -EINVAL; @@ -194,9 +202,12 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id) edev->ulp_tbl[ulp_id].msix_requested = 0; edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED; if (netif_running(dev) && !(edev->flags & BNXT_EN_FLAG_ULP_STOPPED)) { + rtnl_lock(); bnxt_close_nic(bp, true, false); bnxt_open_nic(bp, true, false); + rtnl_unlock(); } + return 0; } @@ -347,25 +358,6 @@ void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) } } -void bnxt_ulp_shutdown(struct bnxt *bp) -{ - struct bnxt_en_dev *edev = bp->edev; - struct bnxt_ulp_ops *ops; - int i; - - if (!edev) - return; - - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_shutdown) - continue; - ops->ulp_shutdown(ulp->handle); - } -} - void bnxt_ulp_irq_stop(struct bnxt *bp) { struct bnxt_en_dev *edev = bp->edev; @@ -475,6 +467,135 @@ static const struct bnxt_en_ops bnxt_en_ops_tbl = { .bnxt_register_fw_async_events = bnxt_register_async_events, }; +void bnxt_aux_dev_free(struct bnxt *bp) +{ + kfree(bp->aux_dev); + bp->aux_dev = NULL; +} + +static struct bnxt_aux_dev *bnxt_aux_dev_alloc(struct bnxt *bp) +{ + struct bnxt_aux_dev *bnxt_adev; + + bnxt_adev = kzalloc(sizeof(*bnxt_adev), GFP_KERNEL); + if (!bnxt_adev) + return ERR_PTR(-ENOMEM); + + return bnxt_adev; +} + +void bnxt_rdma_aux_device_uninit(struct bnxt_aux_dev *bnxt_adev) +{ + struct auxiliary_device *adev; + + if (IS_ERR_OR_NULL(bnxt_adev)) + return; + + adev = &bnxt_adev->aux_dev; + auxiliary_device_delete(adev); + auxiliary_device_uninit(adev); + if (bnxt_adev->id >= 0) + ida_free(&bnxt_aux_dev_ids, bnxt_adev->id); +} + +void bnxt_rdma_aux_device_init(struct bnxt *bp) +{ + struct net_device *dev = bp->dev; + int rc; + + if (bp->flags & BNXT_FLAG_ROCE_CAP) { + bp->aux_dev = bnxt_aux_dev_alloc(bp); + if (IS_ERR_OR_NULL(bp->aux_dev)) { + netdev_warn(dev, "Failed to init auxiliary device for ROCE\n"); + goto skip_aux_init; + } + + bp->aux_dev->id = ida_alloc(&bnxt_aux_dev_ids, GFP_KERNEL); + if (bp->aux_dev->id < 0) { + netdev_warn(dev, "ida alloc failed for ROCE auxiliary device\n"); + bnxt_aux_dev_free(bp); + goto skip_aux_init; + } + + /* If aux bus init fails, continue with netdev init. */ + rc = bnxt_rdma_aux_device_add(bp); + if (rc) { + netdev_warn(dev, "Failed to add auxiliary device for ROCE\n"); + ida_free(&bnxt_aux_dev_ids, bp->aux_dev->id); + bnxt_aux_dev_free(bp); + } + } +skip_aux_init: + return; +} + +void bnxt_aux_dev_release(struct device *dev) +{ + struct bnxt_aux_dev *bnxt_adev = + container_of(dev, struct bnxt_aux_dev, aux_dev.dev); + struct bnxt *bp = netdev_priv(bnxt_adev->edev->net); + + bnxt_adev->edev->en_ops = NULL; + kfree(bnxt_adev->edev); + bnxt_adev->edev = NULL; + bp->edev = NULL; +} + +static inline void bnxt_set_edev_info(struct bnxt_en_dev *edev, struct bnxt *bp) +{ + edev->en_ops = &bnxt_en_ops_tbl; + edev->net = bp->dev; + edev->pdev = bp->pdev; + edev->l2_db_size = bp->db_size; + edev->l2_db_size_nc = bp->db_size; + + if (bp->flags & BNXT_FLAG_ROCEV1_CAP) + edev->flags |= BNXT_EN_FLAG_ROCEV1_CAP; + if (bp->flags & BNXT_FLAG_ROCEV2_CAP) + edev->flags |= BNXT_EN_FLAG_ROCEV2_CAP; +} + +int bnxt_rdma_aux_device_add(struct bnxt *bp) +{ + struct bnxt_aux_dev *bnxt_adev = bp->aux_dev; + struct bnxt_en_dev *edev = bnxt_adev->edev; + struct auxiliary_device *aux_dev; + int ret; + + aux_dev = &bnxt_adev->aux_dev; + aux_dev->id = bnxt_adev->id; + aux_dev->name = "rdma"; + aux_dev->dev.parent = &bp->pdev->dev; + aux_dev->dev.release = bnxt_aux_dev_release; + + if (!edev) { + edev = kzalloc(sizeof(*edev), GFP_KERNEL); + if (!edev) + return -ENOMEM; + } + + bnxt_set_edev_info(edev, bp); + bnxt_adev->edev = edev; + bp->edev = edev; + + ret = auxiliary_device_init(aux_dev); + if (ret) { + kfree(edev); + kfree(bnxt_adev); + return ret; + } + + ret = auxiliary_device_add(aux_dev); + if (ret) { + kfree(edev); + kfree(bnxt_adev); + auxiliary_device_uninit(aux_dev); + return ret; + } + + return 0; +} + struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 42b50abc3e91..8b85c663d881 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -17,6 +17,7 @@ #define BNXT_MIN_ROCE_STAT_CTXS 1 struct hwrm_async_event_cmpl; +struct bnxt_aux_dev; struct bnxt; struct bnxt_msix_entry { @@ -102,10 +103,14 @@ int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); void bnxt_ulp_stop(struct bnxt *bp); void bnxt_ulp_start(struct bnxt *bp, int err); void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); -void bnxt_ulp_shutdown(struct bnxt *bp); void bnxt_ulp_irq_stop(struct bnxt *bp); void bnxt_ulp_irq_restart(struct bnxt *bp, int err); void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); +void bnxt_aux_dev_release(struct device *dev); +int bnxt_rdma_aux_device_add(struct bnxt *bp); +void bnxt_rdma_aux_device_uninit(struct bnxt_aux_dev *bnxt_adev); +void bnxt_rdma_aux_device_init(struct bnxt *bp); +void bnxt_aux_dev_free(struct bnxt *bp); struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev); #endif From patchwork Wed Dec 7 17:53:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067484 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A808C352A1 for ; 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Wed, 07 Dec 2022 09:53:18 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com Subject: [PATCH v5 2/7] RDMA/bnxt_re: Use auxiliary driver interface Date: Wed, 7 Dec 2022 09:53:05 -0800 Message-Id: <20221207175310.23656-3-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Use auxiliary driver interface for driver load, unload ROCE driver. The driver does not need to register the interface using the netdev notifier anymore. Removed the bnxt_re_dev_list which is not needed. Currently probe, remove and shutdown ops have been implemented for the auxiliary device. Also remove exccessve validation checks for rdev. Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/infiniband/hw/bnxt_re/bnxt_re.h | 9 +- drivers/infiniband/hw/bnxt_re/main.c | 395 ++++++------------ drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 29 +- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 3 - 4 files changed, 132 insertions(+), 304 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h index 785c37cae3c0..b0465c8d229a 100644 --- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h +++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h @@ -89,13 +89,6 @@ struct bnxt_re_ring_attr { u8 mode; }; -struct bnxt_re_work { - struct work_struct work; - unsigned long event; - struct bnxt_re_dev *rdev; - struct net_device *vlan_dev; -}; - struct bnxt_re_sqp_entries { struct bnxt_qplib_sge sge; u64 wrid; @@ -132,6 +125,7 @@ struct bnxt_re_dev { #define BNXT_RE_FLAG_ERR_DEVICE_DETACHED 17 #define BNXT_RE_FLAG_ISSUE_ROCE_STATS 29 struct net_device *netdev; + struct notifier_block nb; unsigned int version, major, minor; struct bnxt_qplib_chip_ctx *chip_ctx; struct bnxt_en_dev *en_dev; @@ -194,5 +188,4 @@ static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev) return &rdev->ibdev.dev; return NULL; } - #endif diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 8c0c80a8d338..165ae11b927d 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -48,6 +48,7 @@ #include #include #include +#include #include #include @@ -74,14 +75,14 @@ MODULE_DESCRIPTION(BNXT_RE_DESC " Driver"); MODULE_LICENSE("Dual BSD/GPL"); /* globals */ -static struct list_head bnxt_re_dev_list = LIST_HEAD_INIT(bnxt_re_dev_list); -/* Mutex to protect the list of bnxt_re devices added */ -static DEFINE_MUTEX(bnxt_re_dev_lock); -static struct workqueue_struct *bnxt_re_wq; -static void bnxt_re_remove_device(struct bnxt_re_dev *rdev); -static void bnxt_re_dealloc_driver(struct ib_device *ib_dev); +static DEFINE_MUTEX(bnxt_re_mutex); + static void bnxt_re_stop_irq(void *handle); static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev); +static int bnxt_re_netdev_event(struct notifier_block *notifier, + unsigned long event, void *ptr); +static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev); +static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev); static void bnxt_re_set_drv_mode(struct bnxt_re_dev *rdev, u8 mode) { @@ -233,7 +234,6 @@ static void bnxt_re_stop(void *p) if (!rdev) return; - ASSERT_RTNL(); /* L2 driver invokes this callback during device error/crash or device * reset. Current RoCE driver doesn't recover the device in case of @@ -269,9 +269,6 @@ static void bnxt_re_sriov_config(void *p, int num_vfs) { struct bnxt_re_dev *rdev = p; - if (!rdev) - return; - if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) return; rdev->num_vfs = num_vfs; @@ -282,16 +279,14 @@ static void bnxt_re_sriov_config(void *p, int num_vfs) } } -static void bnxt_re_shutdown(void *p) +static void bnxt_re_shutdown(struct auxiliary_device *adev) { - struct bnxt_re_dev *rdev = p; + struct bnxt_re_dev *rdev = auxiliary_get_drvdata(adev); if (!rdev) return; - ASSERT_RTNL(); - /* Release the MSIx vectors before queuing unregister */ - bnxt_re_stop_irq(rdev); - ib_unregister_device_queued(&rdev->ibdev); + ib_unregister_device(&rdev->ibdev); + bnxt_re_dev_uninit(rdev); } static void bnxt_re_stop_irq(void *handle) @@ -346,11 +341,9 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) } static struct bnxt_ulp_ops bnxt_re_ulp_ops = { - .ulp_async_notifier = NULL, .ulp_stop = bnxt_re_stop, .ulp_start = bnxt_re_start, .ulp_sriov_config = bnxt_re_sriov_config, - .ulp_shutdown = bnxt_re_shutdown, .ulp_irq_stop = bnxt_re_stop_irq, .ulp_irq_restart = bnxt_re_start_irq }; @@ -380,9 +373,6 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) struct bnxt_en_dev *en_dev; int rc = 0; - if (!rdev) - return -EINVAL; - en_dev = rdev->en_dev; rc = en_dev->en_ops->bnxt_register_device(en_dev, BNXT_ROCE_ULP, @@ -401,7 +391,6 @@ static int bnxt_re_free_msix(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_free_msix(rdev->en_dev, BNXT_ROCE_ULP); return rc; @@ -412,9 +401,6 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) int rc = 0, num_msix_want = BNXT_RE_MAX_MSIX, num_msix_got; struct bnxt_en_dev *en_dev; - if (!rdev) - return -EINVAL; - en_dev = rdev->en_dev; num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus()); @@ -458,12 +444,17 @@ static void bnxt_re_fill_fw_msg(struct bnxt_fw_msg *fw_msg, void *msg, static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, u16 fw_ring_id, int type) { - struct bnxt_en_dev *en_dev = rdev->en_dev; + struct bnxt_en_dev *en_dev; struct hwrm_ring_free_input req = {0}; struct hwrm_ring_free_output resp; struct bnxt_fw_msg fw_msg; int rc = -EINVAL; + if (!rdev) + return rc; + + en_dev = rdev->en_dev; + if (!en_dev) return rc; @@ -584,21 +575,6 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, /* Device */ -static bool is_bnxt_re_dev(struct net_device *netdev) -{ - struct ethtool_drvinfo drvinfo; - - if (netdev->ethtool_ops && netdev->ethtool_ops->get_drvinfo) { - memset(&drvinfo, 0, sizeof(drvinfo)); - netdev->ethtool_ops->get_drvinfo(netdev, &drvinfo); - - if (strcmp(drvinfo.driver, "bnxt_en")) - return false; - return true; - } - return false; -} - static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev) { struct ib_device *ibdev = @@ -609,31 +585,6 @@ static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev) return container_of(ibdev, struct bnxt_re_dev, ibdev); } -static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) -{ - struct bnxt_en_dev *en_dev; - struct pci_dev *pdev; - - en_dev = bnxt_ulp_probe(netdev); - if (IS_ERR(en_dev)) - return en_dev; - - pdev = en_dev->pdev; - if (!pdev) - return ERR_PTR(-EINVAL); - - if (!(en_dev->flags & BNXT_EN_FLAG_ROCE_CAP)) { - dev_info(&pdev->dev, - "%s: probe error: RoCE is not supported on this device", - ROCE_DRV_MODULE_NAME); - return ERR_PTR(-ENODEV); - } - - dev_hold(netdev); - - return en_dev; -} - static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, char *buf) { @@ -679,7 +630,6 @@ static const struct ib_device_ops bnxt_re_dev_ops = { .create_qp = bnxt_re_create_qp, .create_srq = bnxt_re_create_srq, .create_user_ah = bnxt_re_create_ah, - .dealloc_driver = bnxt_re_dealloc_driver, .dealloc_pd = bnxt_re_dealloc_pd, .dealloc_ucontext = bnxt_re_dealloc_ucontext, .del_gid = bnxt_re_del_gid, @@ -744,18 +694,7 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev) return ib_register_device(ibdev, "bnxt_re%d", &rdev->en_dev->pdev->dev); } -static void bnxt_re_dev_remove(struct bnxt_re_dev *rdev) -{ - dev_put(rdev->netdev); - rdev->netdev = NULL; - mutex_lock(&bnxt_re_dev_lock); - list_del_rcu(&rdev->list); - mutex_unlock(&bnxt_re_dev_lock); - - synchronize_rcu(); -} - -static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, +static struct bnxt_re_dev *bnxt_re_dev_add(struct bnxt_aux_dev *aux_dev, struct bnxt_en_dev *en_dev) { struct bnxt_re_dev *rdev; @@ -768,8 +707,8 @@ static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, return NULL; } /* Default values */ - rdev->netdev = netdev; - dev_hold(rdev->netdev); + rdev->nb.notifier_call = NULL; + rdev->netdev = en_dev->net; rdev->en_dev = en_dev; rdev->id = rdev->en_dev->pdev->devfn; INIT_LIST_HEAD(&rdev->qp_list); @@ -784,9 +723,6 @@ static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, rdev->cosq[0] = 0xFFFF; rdev->cosq[1] = 0xFFFF; - mutex_lock(&bnxt_re_dev_lock); - list_add_tail_rcu(&rdev->list, &bnxt_re_dev_list); - mutex_unlock(&bnxt_re_dev_lock); return rdev; } @@ -1323,7 +1259,7 @@ static int bnxt_re_ib_init(struct bnxt_re_dev *rdev) pr_err("Failed to register with IB: %#x\n", rc); return rc; } - dev_info(rdev_to_dev(rdev), "Device registered successfully"); + dev_info(rdev_to_dev(rdev), "Device registered with IB successfully"); ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, &rdev->active_width); set_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags); @@ -1541,135 +1477,43 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode) return rc; } -static void bnxt_re_dev_unreg(struct bnxt_re_dev *rdev) -{ - struct net_device *netdev = rdev->netdev; - - bnxt_re_dev_remove(rdev); - - if (netdev) - dev_put(netdev); -} - -static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev) +static int bnxt_re_add_device(struct auxiliary_device *adev, u8 wqe_mode) { + struct bnxt_aux_dev *aux_dev = + container_of(adev, struct bnxt_aux_dev, aux_dev); struct bnxt_en_dev *en_dev; + struct bnxt_re_dev *rdev; int rc = 0; - if (!is_bnxt_re_dev(netdev)) - return -ENODEV; + /* en_dev should never be NULL as long as adev and aux_dev are valid. */ + en_dev = aux_dev->edev; - en_dev = bnxt_re_dev_probe(netdev); - if (IS_ERR(en_dev)) { - if (en_dev != ERR_PTR(-ENODEV)) - ibdev_err(&(*rdev)->ibdev, "%s: Failed to probe\n", - ROCE_DRV_MODULE_NAME); - rc = PTR_ERR(en_dev); - goto exit; - } - *rdev = bnxt_re_dev_add(netdev, en_dev); - if (!*rdev) { + rdev = bnxt_re_dev_add(aux_dev, en_dev); + if (!rdev || !rdev_to_dev(rdev)) { rc = -ENOMEM; - dev_put(netdev); goto exit; } -exit: - return rc; -} - -static void bnxt_re_remove_device(struct bnxt_re_dev *rdev) -{ - bnxt_re_dev_uninit(rdev); - pci_dev_put(rdev->en_dev->pdev); - bnxt_re_dev_unreg(rdev); -} - -static int bnxt_re_add_device(struct bnxt_re_dev **rdev, - struct net_device *netdev, u8 wqe_mode) -{ - int rc; - rc = bnxt_re_dev_reg(rdev, netdev); - if (rc == -ENODEV) - return rc; - if (rc) { - pr_err("Failed to register with the device %s: %#x\n", - netdev->name, rc); - return rc; - } + rc = bnxt_re_dev_init(rdev, wqe_mode); + if (rc) + goto re_dev_dealloc; - pci_dev_get((*rdev)->en_dev->pdev); - rc = bnxt_re_dev_init(*rdev, wqe_mode); + rc = bnxt_re_ib_init(rdev); if (rc) { - pci_dev_put((*rdev)->en_dev->pdev); - bnxt_re_dev_unreg(*rdev); + pr_err("Failed to register with IB: %s", + aux_dev->aux_dev.name); + goto re_dev_uninit; } + auxiliary_set_drvdata(adev, rdev); - return rc; -} - -static void bnxt_re_dealloc_driver(struct ib_device *ib_dev) -{ - struct bnxt_re_dev *rdev = - container_of(ib_dev, struct bnxt_re_dev, ibdev); - - dev_info(rdev_to_dev(rdev), "Unregistering Device"); - - rtnl_lock(); - bnxt_re_remove_device(rdev); - rtnl_unlock(); -} - -/* Handle all deferred netevents tasks */ -static void bnxt_re_task(struct work_struct *work) -{ - struct bnxt_re_work *re_work; - struct bnxt_re_dev *rdev; - int rc = 0; - - re_work = container_of(work, struct bnxt_re_work, work); - rdev = re_work->rdev; - - if (re_work->event == NETDEV_REGISTER) { - rc = bnxt_re_ib_init(rdev); - if (rc) { - ibdev_err(&rdev->ibdev, - "Failed to register with IB: %#x", rc); - rtnl_lock(); - bnxt_re_remove_device(rdev); - rtnl_unlock(); - goto exit; - } - goto exit; - } - - if (!ib_device_try_get(&rdev->ibdev)) - goto exit; + return 0; - switch (re_work->event) { - case NETDEV_UP: - bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, - IB_EVENT_PORT_ACTIVE); - break; - case NETDEV_DOWN: - bnxt_re_dev_stop(rdev); - break; - case NETDEV_CHANGE: - if (!netif_carrier_ok(rdev->netdev)) - bnxt_re_dev_stop(rdev); - else if (netif_carrier_ok(rdev->netdev)) - bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, - IB_EVENT_PORT_ACTIVE); - ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, - &rdev->active_width); - break; - default: - break; - } - ib_device_put(&rdev->ibdev); +re_dev_uninit: + bnxt_re_dev_uninit(rdev); +re_dev_dealloc: + ib_dealloc_device(&rdev->ibdev); exit: - put_device(&rdev->ibdev.dev); - kfree(re_work); + return rc; } /* @@ -1690,109 +1534,130 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, unsigned long event, void *ptr) { struct net_device *real_dev, *netdev = netdev_notifier_info_to_dev(ptr); - struct bnxt_re_work *re_work; struct bnxt_re_dev *rdev; - int rc = 0; - bool sch_work = false; - bool release = true; real_dev = rdma_vlan_dev_real_dev(netdev); if (!real_dev) real_dev = netdev; - rdev = bnxt_re_from_netdev(real_dev); - if (!rdev && event != NETDEV_REGISTER) - return NOTIFY_OK; - if (real_dev != netdev) goto exit; - switch (event) { - case NETDEV_REGISTER: - if (rdev) - break; - rc = bnxt_re_add_device(&rdev, real_dev, - BNXT_QPLIB_WQE_MODE_STATIC); - if (!rc) - sch_work = true; - release = false; - break; + rdev = bnxt_re_from_netdev(real_dev); + if (!rdev) + return NOTIFY_DONE; - case NETDEV_UNREGISTER: - ib_unregister_device_queued(&rdev->ibdev); - break; + switch (event) { + case NETDEV_UP: + case NETDEV_DOWN: + case NETDEV_CHANGE: + bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, + netif_carrier_ok(real_dev) ? + IB_EVENT_PORT_ACTIVE : + IB_EVENT_PORT_ERR); + break; default: - sch_work = true; break; } - if (sch_work) { - /* Allocate for the deferred task */ - re_work = kzalloc(sizeof(*re_work), GFP_KERNEL); - if (re_work) { - get_device(&rdev->ibdev.dev); - re_work->rdev = rdev; - re_work->event = event; - re_work->vlan_dev = (real_dev == netdev ? - NULL : netdev); - INIT_WORK(&re_work->work, bnxt_re_task); - queue_work(bnxt_re_wq, &re_work->work); - } - } - + ib_device_put(&rdev->ibdev); exit: - if (rdev && release) - ib_device_put(&rdev->ibdev); return NOTIFY_DONE; } -static struct notifier_block bnxt_re_netdev_notifier = { - .notifier_call = bnxt_re_netdev_event -}; +#define BNXT_ADEV_NAME "bnxt_en" -static int __init bnxt_re_mod_init(void) +static void bnxt_re_remove(struct auxiliary_device *adev) { - int rc = 0; + struct bnxt_re_dev *rdev = auxiliary_get_drvdata(adev); - pr_info("%s: %s", ROCE_DRV_MODULE_NAME, version); + if (!rdev) + return; - bnxt_re_wq = create_singlethread_workqueue("bnxt_re"); - if (!bnxt_re_wq) - return -ENOMEM; + mutex_lock(&bnxt_re_mutex); + if (rdev->nb.notifier_call) { + unregister_netdevice_notifier(&rdev->nb); + rdev->nb.notifier_call = NULL; + } else { + /* If notifier is null, we should have already done a + * clean up before coming here. + */ + goto skip_remove; + } + + ib_unregister_device(&rdev->ibdev); + ib_dealloc_device(&rdev->ibdev); + bnxt_re_dev_uninit(rdev); +skip_remove: + mutex_unlock(&bnxt_re_mutex); +} + +static int bnxt_re_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) +{ + struct bnxt_re_dev *rdev; + int rc; + + mutex_lock(&bnxt_re_mutex); + rc = bnxt_re_add_device(adev, BNXT_QPLIB_WQE_MODE_STATIC); + if (rc) { + mutex_unlock(&bnxt_re_mutex); + return rc; + } - INIT_LIST_HEAD(&bnxt_re_dev_list); + rdev = auxiliary_get_drvdata(adev); - rc = register_netdevice_notifier(&bnxt_re_netdev_notifier); + rdev->nb.notifier_call = bnxt_re_netdev_event; + rc = register_netdevice_notifier(&rdev->nb); if (rc) { + rdev->nb.notifier_call = NULL; pr_err("%s: Cannot register to netdevice_notifier", ROCE_DRV_MODULE_NAME); - goto err_netdev; + goto err; } + + mutex_unlock(&bnxt_re_mutex); return 0; -err_netdev: - destroy_workqueue(bnxt_re_wq); +err: + mutex_unlock(&bnxt_re_mutex); + bnxt_re_remove(adev); return rc; } -static void __exit bnxt_re_mod_exit(void) +static const struct auxiliary_device_id bnxt_re_id_table[] = { + { .name = BNXT_ADEV_NAME ".rdma", }, + {}, +}; + +MODULE_DEVICE_TABLE(auxiliary, bnxt_re_id_table); + +static struct auxiliary_driver bnxt_re_driver = { + .name = "rdma", + .probe = bnxt_re_probe, + .remove = bnxt_re_remove, + .shutdown = bnxt_re_shutdown, + .id_table = bnxt_re_id_table, +}; + +static int __init bnxt_re_mod_init(void) { - struct bnxt_re_dev *rdev; + int rc = 0; - unregister_netdevice_notifier(&bnxt_re_netdev_notifier); - if (bnxt_re_wq) - destroy_workqueue(bnxt_re_wq); - list_for_each_entry(rdev, &bnxt_re_dev_list, list) { - /* VF device removal should be called before the removal - * of PF device. Queue VFs unregister first, so that VFs - * shall be removed before the PF during the call of - * ib_unregister_driver. - */ - if (rdev->is_virtfn) - ib_unregister_device(&rdev->ibdev); + pr_info("%s: %s", ROCE_DRV_MODULE_NAME, version); + rc = auxiliary_driver_register(&bnxt_re_driver); + if (rc) { + pr_err("%s: Failed to register auxiliary driver\n", + ROCE_DRV_MODULE_NAME); + return rc; } - ib_unregister_driver(RDMA_DRIVER_BNXT_RE); + return 0; +} + +static void __exit bnxt_re_mod_exit(void) +{ + auxiliary_driver_unregister(&bnxt_re_driver); } module_init(bnxt_re_mod_init); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 7ffd61ec2683..1d2d30f97ed9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "bnxt_hsi.h" #include "bnxt.h" @@ -78,8 +79,6 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, unsigned int ulp_id) if (ulp_id >= BNXT_MAX_ULP) return -EINVAL; - edev->flags |= BNXT_EN_FLAG_ULP_STOPPED; - ulp = &edev->ulp_tbl[ulp_id]; if (!rcu_access_pointer(ulp->ulp_ops)) { netdev_err(bp->dev, "ulp id %d not registered\n", ulp_id); @@ -595,29 +594,3 @@ int bnxt_rdma_aux_device_add(struct bnxt *bp) return 0; } - -struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev) -{ - struct bnxt *bp = netdev_priv(dev); - struct bnxt_en_dev *edev; - - edev = bp->edev; - if (!edev) { - edev = kzalloc(sizeof(*edev), GFP_KERNEL); - if (!edev) - return ERR_PTR(-ENOMEM); - edev->en_ops = &bnxt_en_ops_tbl; - edev->net = dev; - edev->pdev = bp->pdev; - edev->l2_db_size = bp->db_size; - edev->l2_db_size_nc = bp->db_size; - bp->edev = edev; - } - edev->flags &= ~BNXT_EN_FLAG_ROCE_CAP; - if (bp->flags & BNXT_FLAG_ROCEV1_CAP) - edev->flags |= BNXT_EN_FLAG_ROCEV1_CAP; - if (bp->flags & BNXT_FLAG_ROCEV2_CAP) - edev->flags |= BNXT_EN_FLAG_ROCEV2_CAP; - return bp->edev; -} -EXPORT_SYMBOL(bnxt_ulp_probe); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 8b85c663d881..aaf55d847505 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -32,7 +32,6 @@ struct bnxt_ulp_ops { void (*ulp_stop)(void *); void (*ulp_start)(void *); void (*ulp_sriov_config)(void *, int); - void (*ulp_shutdown)(void *); void (*ulp_irq_stop)(void *); void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); }; @@ -111,6 +110,4 @@ int bnxt_rdma_aux_device_add(struct bnxt *bp); void bnxt_rdma_aux_device_uninit(struct bnxt_aux_dev *bnxt_adev); void bnxt_rdma_aux_device_init(struct bnxt *bp); void bnxt_aux_dev_free(struct bnxt *bp); -struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev); - #endif From patchwork Wed Dec 7 17:53:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067485 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B109C47089 for ; Wed, 7 Dec 2022 17:53:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230191AbiLGRxt (ORCPT ); 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Wed, 07 Dec 2022 09:53:20 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com, Leon Romanovsky Subject: [PATCH v5 3/7] bnxt_en: Remove usage of ulp_id Date: Wed, 7 Dec 2022 09:53:06 -0800 Message-Id: <20221207175310.23656-4-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Since the driver continues to use the single ULP model, the extra complexity and indirection is unnecessary. Remove the usage of ulp_id from the code. Suggested-by: Leon Romanovsky Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/infiniband/hw/bnxt_re/main.c | 24 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 215 ++++++++---------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 26 +-- 4 files changed, 115 insertions(+), 152 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 165ae11b927d..814f1d2e31b5 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -363,8 +363,7 @@ static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev, - BNXT_ROCE_ULP); + rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev); return rc; } @@ -375,7 +374,7 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_register_device(en_dev, BNXT_ROCE_ULP, + rc = en_dev->en_ops->bnxt_register_device(en_dev, &bnxt_re_ulp_ops, rdev); rdev->qplib_res.pdev = rdev->en_dev->pdev; return rc; @@ -384,16 +383,15 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) static int bnxt_re_free_msix(struct bnxt_re_dev *rdev) { struct bnxt_en_dev *en_dev; - int rc; if (!rdev) return -EINVAL; en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_free_msix(rdev->en_dev, BNXT_ROCE_ULP); + en_dev->en_ops->bnxt_free_msix(rdev->en_dev); - return rc; + return 0; } static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) @@ -405,7 +403,7 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus()); - num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, BNXT_ROCE_ULP, + num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, rdev->msix_entries, num_msix_want); if (num_msix_got < BNXT_RE_MIN_MSIX) { @@ -468,7 +466,7 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, req.ring_id = cpu_to_le16(fw_ring_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW ring:%d :%#x", req.ring_id, rc); @@ -505,7 +503,7 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, req.int_mode = ring_attr->mode; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (!rc) *fw_ring_id = le16_to_cpu(resp.ring_id); @@ -533,7 +531,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW stats context %#x", rc); @@ -566,7 +564,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (!rc) *fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id); @@ -1052,7 +1050,7 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (rc) return rc; @@ -1235,7 +1233,7 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev) req.hwrm_intf_upd = HWRM_VERSION_UPDATE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); + rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); if (rc) { ibdev_err(&rdev->ibdev, "Failed to query HW version, rc = 0x%x", rc); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 2769d36b7d39..e8e32039d3a1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5533,7 +5533,7 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id) #endif if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); - if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) + if (!vnic_id && bnxt_ulp_registered(bp->edev)) req->flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp)); return hwrm_req_send(bp, req); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 1d2d30f97ed9..69fb7d594f1d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -28,64 +28,44 @@ static DEFINE_IDA(bnxt_aux_dev_ids); -static int bnxt_register_dev(struct bnxt_en_dev *edev, unsigned int ulp_id, - struct bnxt_ulp_ops *ulp_ops, void *handle) +static int bnxt_register_dev(struct bnxt_en_dev *edev, + struct bnxt_ulp_ops *ulp_ops, + void *handle) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); + unsigned int max_stat_ctxs; struct bnxt_ulp *ulp; - int rc = 0; - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; + max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp); + if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS || + bp->cp_nr_rings == max_stat_ctxs) + return -ENOMEM; - ulp = &edev->ulp_tbl[ulp_id]; - if (rcu_access_pointer(ulp->ulp_ops)) { - netdev_err(bp->dev, "ulp id %d already registered\n", ulp_id); - rc = -EBUSY; - goto exit; - } - if (ulp_id == BNXT_ROCE_ULP) { - unsigned int max_stat_ctxs; - - max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp); - if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS || - bp->cp_nr_rings == max_stat_ctxs) { - rc = -ENOMEM; - goto exit; - } - } + ulp = kzalloc(sizeof(*ulp), GFP_KERNEL); + if (!ulp) + return -ENOMEM; - atomic_set(&ulp->ref_count, 1); + edev->ulp_tbl = ulp; ulp->handle = handle; rcu_assign_pointer(ulp->ulp_ops, ulp_ops); - if (ulp_id == BNXT_ROCE_ULP) { - if (test_bit(BNXT_STATE_OPEN, &bp->state)) - bnxt_hwrm_vnic_cfg(bp, 0); - } + if (test_bit(BNXT_STATE_OPEN, &bp->state)) + bnxt_hwrm_vnic_cfg(bp, 0); -exit: - return rc; + return 0; } -static int bnxt_unregister_dev(struct bnxt_en_dev *edev, unsigned int ulp_id) +static int bnxt_unregister_dev(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); struct bnxt_ulp *ulp; int i = 0; - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; - - ulp = &edev->ulp_tbl[ulp_id]; - if (!rcu_access_pointer(ulp->ulp_ops)) { - netdev_err(bp->dev, "ulp id %d not registered\n", ulp_id); - return -EINVAL; - } - if (ulp_id == BNXT_ROCE_ULP && ulp->msix_requested) - edev->en_ops->bnxt_free_msix(edev, ulp_id); + ulp = edev->ulp_tbl; + if (ulp->msix_requested) + edev->en_ops->bnxt_free_msix(edev); if (ulp->max_async_event_id) bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, true); @@ -98,6 +78,8 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, unsigned int ulp_id) msleep(100); i++; } + kfree(ulp); + edev->ulp_tbl = NULL; return 0; } @@ -106,8 +88,8 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) struct bnxt_en_dev *edev = bp->edev; int num_msix, idx, i; - num_msix = edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested; - idx = edev->ulp_tbl[BNXT_ROCE_ULP].msix_base; + num_msix = edev->ulp_tbl->msix_requested; + idx = edev->ulp_tbl->msix_base; for (i = 0; i < num_msix; i++) { ent[i].vector = bp->irq_tbl[idx + i].vector; ent[i].ring_idx = idx + i; @@ -121,8 +103,9 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) } } -static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, - struct bnxt_msix_entry *ent, int num_msix) +static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, + struct bnxt_msix_entry *ent, + int num_msix) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -132,13 +115,10 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, int total_vecs; int rc = 0; - if (ulp_id != BNXT_ROCE_ULP) - return -EINVAL; - if (!(bp->flags & BNXT_FLAG_USING_MSIX)) return -ENODEV; - if (edev->ulp_tbl[ulp_id].msix_requested) + if (edev->ulp_tbl->msix_requested) return -EAGAIN; max_cp_rings = bnxt_get_max_func_cp_rings(bp); @@ -155,8 +135,8 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, idx = max_idx - avail_msix; } - edev->ulp_tbl[ulp_id].msix_base = idx; - edev->ulp_tbl[ulp_id].msix_requested = avail_msix; + edev->ulp_tbl->msix_base = idx; + edev->ulp_tbl->msix_requested = avail_msix; hw_resc = &bp->hw_resc; total_vecs = idx + avail_msix; if (bp->total_irqs < total_vecs || @@ -171,7 +151,7 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, } } if (rc) { - edev->ulp_tbl[ulp_id].msix_requested = 0; + edev->ulp_tbl->msix_requested = 0; return -EAGAIN; } @@ -180,25 +160,22 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id, resv_msix = hw_resc->resv_irqs - bp->cp_nr_rings; avail_msix = min_t(int, resv_msix, avail_msix); - edev->ulp_tbl[ulp_id].msix_requested = avail_msix; + edev->ulp_tbl->msix_requested = avail_msix; } bnxt_fill_msix_vecs(bp, ent); edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED; return avail_msix; } -static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id) +static void bnxt_free_msix_vecs(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); - if (ulp_id != BNXT_ROCE_ULP) - return -EINVAL; - if (!(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) - return 0; + return; - edev->ulp_tbl[ulp_id].msix_requested = 0; + edev->ulp_tbl->msix_requested = 0; edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED; if (netif_running(dev) && !(edev->flags & BNXT_EN_FLAG_ULP_STOPPED)) { rtnl_lock(); @@ -207,43 +184,43 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, unsigned int ulp_id) rtnl_unlock(); } - return 0; + return; } int bnxt_get_ulp_msix_num(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; - return edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested; + return edev->ulp_tbl->msix_requested; } return 0; } int bnxt_get_ulp_msix_base(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; - if (edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested) - return edev->ulp_tbl[BNXT_ROCE_ULP].msix_base; + if (edev->ulp_tbl->msix_requested) + return edev->ulp_tbl->msix_base; } return 0; } int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) { - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { + if (bnxt_ulp_registered(bp->edev)) { struct bnxt_en_dev *edev = bp->edev; - if (edev->ulp_tbl[BNXT_ROCE_ULP].msix_requested) + if (edev->ulp_tbl->msix_requested) return BNXT_MIN_ROCE_STAT_CTXS; } return 0; } -static int bnxt_send_msg(struct bnxt_en_dev *edev, unsigned int ulp_id, +static int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg) { struct net_device *dev = edev->net; @@ -253,7 +230,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, unsigned int ulp_id, u32 resp_len; int rc; - if (ulp_id != BNXT_ROCE_ULP && bp->fw_reset_state) + if (bp->fw_reset_state) return -EBUSY; rc = hwrm_req_init(bp, req, 0 /* don't care */); @@ -292,27 +269,24 @@ void bnxt_ulp_stop(struct bnxt *bp) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; edev->flags |= BNXT_EN_FLAG_ULP_STOPPED; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_stop) - continue; - ops->ulp_stop(ulp->handle); - } + ulp = edev->ulp_tbl; + ops = rtnl_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_stop) + return; + ops->ulp_stop(ulp->handle); } void bnxt_ulp_start(struct bnxt *bp, int err) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; @@ -322,39 +296,33 @@ void bnxt_ulp_start(struct bnxt *bp, int err) if (err) return; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_start) - continue; - ops->ulp_start(ulp->handle); - } + ulp = edev->ulp_tbl; + ops = rtnl_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_start) + return; + ops->ulp_start(ulp->handle); } void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) { struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; if (!edev) return; + ulp = edev->ulp_tbl; - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - rcu_read_lock(); - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_sriov_config) { - rcu_read_unlock(); - continue; - } - bnxt_ulp_get(ulp); + rcu_read_lock(); + ops = rcu_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_sriov_config) { rcu_read_unlock(); - ops->ulp_sriov_config(ulp->handle, num_vfs); - bnxt_ulp_put(ulp); + return; } + bnxt_ulp_get(ulp); + rcu_read_unlock(); + ops->ulp_sriov_config(ulp->handle, num_vfs); + bnxt_ulp_put(ulp); } void bnxt_ulp_irq_stop(struct bnxt *bp) @@ -365,8 +333,8 @@ void bnxt_ulp_irq_stop(struct bnxt *bp) if (!edev || !(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return; - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[BNXT_ROCE_ULP]; + if (bnxt_ulp_registered(bp->edev)) { + struct bnxt_ulp *ulp = edev->ulp_tbl; if (!ulp->msix_requested) return; @@ -386,8 +354,8 @@ void bnxt_ulp_irq_restart(struct bnxt *bp, int err) if (!edev || !(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return; - if (bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[BNXT_ROCE_ULP]; + if (bnxt_ulp_registered(bp->edev)) { + struct bnxt_ulp *ulp = edev->ulp_tbl; struct bnxt_msix_entry *ent = NULL; if (!ulp->msix_requested) @@ -414,41 +382,38 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) u16 event_id = le16_to_cpu(cmpl->event_id); struct bnxt_en_dev *edev = bp->edev; struct bnxt_ulp_ops *ops; - int i; + struct bnxt_ulp *ulp; - if (!edev) + if (!bnxt_ulp_registered(edev)) return; + ulp = edev->ulp_tbl; + rcu_read_lock(); - for (i = 0; i < BNXT_MAX_ULP; i++) { - struct bnxt_ulp *ulp = &edev->ulp_tbl[i]; - - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_async_notifier) - continue; - if (!ulp->async_events_bmap || - event_id > ulp->max_async_event_id) - continue; - - /* Read max_async_event_id first before testing the bitmap. */ - smp_rmb(); - if (test_bit(event_id, ulp->async_events_bmap)) - ops->ulp_async_notifier(ulp->handle, cmpl); - } + + ops = rcu_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_async_notifier) + goto exit; + if (!ulp->async_events_bmap || event_id > ulp->max_async_event_id) + goto exit; + + /* Read max_async_event_id first before testing the bitmap. */ + smp_rmb(); + if (test_bit(event_id, ulp->async_events_bmap)) + ops->ulp_async_notifier(ulp->handle, cmpl); +exit: rcu_read_unlock(); } -static int bnxt_register_async_events(struct bnxt_en_dev *edev, unsigned int ulp_id, - unsigned long *events_bmap, u16 max_id) +static int bnxt_register_async_events(struct bnxt_en_dev *edev, + unsigned long *events_bmap, + u16 max_id) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); struct bnxt_ulp *ulp; - if (ulp_id >= BNXT_MAX_ULP) - return -EINVAL; - - ulp = &edev->ulp_tbl[ulp_id]; + ulp = edev->ulp_tbl; ulp->async_events_bmap = events_bmap; /* Make sure bnxt_ulp_async_events() sees this order */ smp_wmb(); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index aaf55d847505..7b2b829300b4 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -65,7 +65,7 @@ struct bnxt_en_dev { #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 const struct bnxt_en_ops *en_ops; - struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP]; + struct bnxt_ulp *ulp_tbl; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 * driver. @@ -77,21 +77,21 @@ struct bnxt_en_dev { }; struct bnxt_en_ops { - int (*bnxt_register_device)(struct bnxt_en_dev *, unsigned int, - struct bnxt_ulp_ops *, void *); - int (*bnxt_unregister_device)(struct bnxt_en_dev *, unsigned int); - int (*bnxt_request_msix)(struct bnxt_en_dev *, unsigned int, - struct bnxt_msix_entry *, int); - int (*bnxt_free_msix)(struct bnxt_en_dev *, unsigned int); - int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, unsigned int, - struct bnxt_fw_msg *); - int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, unsigned int, - unsigned long *, u16); + int (*bnxt_register_device)(struct bnxt_en_dev *edev, + struct bnxt_ulp_ops *ulp_ops, void *handle); + int (*bnxt_unregister_device)(struct bnxt_en_dev *edev); + int (*bnxt_request_msix)(struct bnxt_en_dev *edev, + struct bnxt_msix_entry *ent, int num_msix); + void (*bnxt_free_msix)(struct bnxt_en_dev *edev); + int (*bnxt_send_fw_msg)(struct bnxt_en_dev *edev, + struct bnxt_fw_msg *fw_msg); + int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *edev, + unsigned long *events_bmap, u16 max_id); }; -static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) +static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) { - if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops)) + if (edev && edev->ulp_tbl) return true; 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Wed, 07 Dec 2022 09:53:22 -0800 (PST) Received: from C02GC2QQMD6T.wifi.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id l6-20020a622506000000b005748aca80fesm13862242pfl.32.2022.12.07.09.53.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Dec 2022 09:53:22 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com, Leon Romanovsky Subject: [PATCH v5 4/7] bnxt_en: Use direct API instead of indirection Date: Wed, 7 Dec 2022 09:53:07 -0800 Message-Id: <20221207175310.23656-5-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org For a single ULP user there is no need for complicating function indirection calls. Remove all this complexity in favour of direct function calls exported by the bnxt_en driver. This allows to simplify the code greatly. Suggested-by: Leon Romanovsky Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/infiniband/hw/bnxt_re/main.c | 71 +++++-------------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 48 ++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 23 +++--- 3 files changed, 45 insertions(+), 97 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 814f1d2e31b5..e1777c8e6d5e 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -350,23 +350,6 @@ static struct bnxt_ulp_ops bnxt_re_ulp_ops = { /* RoCE -> Net driver */ -/* Driver registration routines used to let the networking driver (bnxt_en) - * to know that the RoCE driver is now installed - */ -static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev) -{ - struct bnxt_en_dev *en_dev; - int rc; - - if (!rdev) - return -EINVAL; - - en_dev = rdev->en_dev; - - rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev); - return rc; -} - static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) { struct bnxt_en_dev *en_dev; @@ -374,26 +357,12 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rc = en_dev->en_ops->bnxt_register_device(en_dev, - &bnxt_re_ulp_ops, rdev); - rdev->qplib_res.pdev = rdev->en_dev->pdev; + rc = bnxt_register_dev(en_dev, &bnxt_re_ulp_ops, rdev); + if (!rc) + rdev->qplib_res.pdev = rdev->en_dev->pdev; return rc; } -static int bnxt_re_free_msix(struct bnxt_re_dev *rdev) -{ - struct bnxt_en_dev *en_dev; - - if (!rdev) - return -EINVAL; - - en_dev = rdev->en_dev; - - en_dev->en_ops->bnxt_free_msix(rdev->en_dev); - - return 0; -} - static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) { int rc = 0, num_msix_want = BNXT_RE_MAX_MSIX, num_msix_got; @@ -403,9 +372,9 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus()); - num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, - rdev->msix_entries, - num_msix_want); + num_msix_got = bnxt_req_msix_vecs(en_dev, + rdev->msix_entries, + num_msix_want); if (num_msix_got < BNXT_RE_MIN_MSIX) { rc = -EINVAL; goto done; @@ -466,7 +435,7 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, req.ring_id = cpu_to_le16(fw_ring_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW ring:%d :%#x", req.ring_id, rc); @@ -503,7 +472,7 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, req.int_mode = ring_attr->mode; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (!rc) *fw_ring_id = le16_to_cpu(resp.ring_id); @@ -531,7 +500,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id); bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) ibdev_err(&rdev->ibdev, "Failed to free HW stats context %#x", rc); @@ -564,7 +533,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (!rc) *fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id); @@ -1050,7 +1019,7 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) return rc; @@ -1233,7 +1202,7 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev) req.hwrm_intf_upd = HWRM_VERSION_UPDATE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); - rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg); + rc = bnxt_send_msg(en_dev, &fw_msg); if (rc) { ibdev_err(&rdev->ibdev, "Failed to query HW version, rc = 0x%x", rc); @@ -1296,20 +1265,12 @@ static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev) bnxt_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id, type); bnxt_qplib_free_rcfw_channel(&rdev->rcfw); } - if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) { - rc = bnxt_re_free_msix(rdev); - if (rc) - ibdev_warn(&rdev->ibdev, - "Failed to free MSI-X vectors: %#x", rc); - } + if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) + bnxt_free_msix_vecs(rdev->en_dev); bnxt_re_destroy_chip_ctx(rdev); - if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) { - rc = bnxt_re_unregister_netdev(rdev); - if (rc) - ibdev_warn(&rdev->ibdev, - "Failed to unregister with netdev: %#x", rc); - } + if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) + bnxt_unregister_dev(rdev->en_dev); } /* worker thread for polling periodic events. Now used for QoS programming*/ diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 69fb7d594f1d..edc4d49502ab 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -28,9 +28,9 @@ static DEFINE_IDA(bnxt_aux_dev_ids); -static int bnxt_register_dev(struct bnxt_en_dev *edev, - struct bnxt_ulp_ops *ulp_ops, - void *handle) +int bnxt_register_dev(struct bnxt_en_dev *edev, + struct bnxt_ulp_ops *ulp_ops, + void *handle) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -55,8 +55,9 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, return 0; } +EXPORT_SYMBOL(bnxt_register_dev); -static int bnxt_unregister_dev(struct bnxt_en_dev *edev) +void bnxt_unregister_dev(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -65,7 +66,7 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev) ulp = edev->ulp_tbl; if (ulp->msix_requested) - edev->en_ops->bnxt_free_msix(edev); + bnxt_free_msix_vecs(edev); if (ulp->max_async_event_id) bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, true); @@ -80,8 +81,9 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev) } kfree(ulp); edev->ulp_tbl = NULL; - return 0; + return; } +EXPORT_SYMBOL(bnxt_unregister_dev); static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) { @@ -103,7 +105,7 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) } } -static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, +int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, struct bnxt_msix_entry *ent, int num_msix) { @@ -166,8 +168,9 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED; return avail_msix; } +EXPORT_SYMBOL(bnxt_req_msix_vecs); -static void bnxt_free_msix_vecs(struct bnxt_en_dev *edev) +void bnxt_free_msix_vecs(struct bnxt_en_dev *edev) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -186,6 +189,7 @@ static void bnxt_free_msix_vecs(struct bnxt_en_dev *edev) return; } +EXPORT_SYMBOL(bnxt_free_msix_vecs); int bnxt_get_ulp_msix_num(struct bnxt *bp) { @@ -220,7 +224,7 @@ int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) return 0; } -static int bnxt_send_msg(struct bnxt_en_dev *edev, +int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg) { struct net_device *dev = edev->net; @@ -254,6 +258,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, hwrm_req_drop(bp, req); return rc; } +EXPORT_SYMBOL(bnxt_send_msg); static void bnxt_ulp_get(struct bnxt_ulp *ulp) { @@ -313,14 +318,11 @@ void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) return; ulp = edev->ulp_tbl; - rcu_read_lock(); ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_sriov_config) { - rcu_read_unlock(); + if (!ops || !ops->ulp_sriov_config) return; - } + bnxt_ulp_get(ulp); - rcu_read_unlock(); ops->ulp_sriov_config(ulp->handle, num_vfs); bnxt_ulp_put(ulp); } @@ -405,9 +407,9 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) rcu_read_unlock(); } -static int bnxt_register_async_events(struct bnxt_en_dev *edev, - unsigned long *events_bmap, - u16 max_id) +int bnxt_register_async_events(struct bnxt_en_dev *edev, + unsigned long *events_bmap, + u16 max_id) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); @@ -421,15 +423,7 @@ static int bnxt_register_async_events(struct bnxt_en_dev *edev, bnxt_hwrm_func_drv_rgtr(bp, events_bmap, max_id + 1, true); return 0; } - -static const struct bnxt_en_ops bnxt_en_ops_tbl = { - .bnxt_register_device = bnxt_register_dev, - .bnxt_unregister_device = bnxt_unregister_dev, - .bnxt_request_msix = bnxt_req_msix_vecs, - .bnxt_free_msix = bnxt_free_msix_vecs, - .bnxt_send_fw_msg = bnxt_send_msg, - .bnxt_register_fw_async_events = bnxt_register_async_events, -}; +EXPORT_SYMBOL(bnxt_register_async_events); void bnxt_aux_dev_free(struct bnxt *bp) { @@ -499,7 +493,6 @@ void bnxt_aux_dev_release(struct device *dev) container_of(dev, struct bnxt_aux_dev, aux_dev.dev); struct bnxt *bp = netdev_priv(bnxt_adev->edev->net); - bnxt_adev->edev->en_ops = NULL; kfree(bnxt_adev->edev); bnxt_adev->edev = NULL; bp->edev = NULL; @@ -507,7 +500,6 @@ void bnxt_aux_dev_release(struct device *dev) static inline void bnxt_set_edev_info(struct bnxt_en_dev *edev, struct bnxt *bp) { - edev->en_ops = &bnxt_en_ops_tbl; edev->net = bp->dev; edev->pdev = bp->pdev; edev->l2_db_size = bp->db_size; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 7b2b829300b4..b16dbf217dcd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -64,7 +64,6 @@ struct bnxt_en_dev { BNXT_EN_FLAG_ROCEV2_CAP) #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 - const struct bnxt_en_ops *en_ops; struct bnxt_ulp *ulp_tbl; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 @@ -76,19 +75,6 @@ struct bnxt_en_dev { */ }; -struct bnxt_en_ops { - int (*bnxt_register_device)(struct bnxt_en_dev *edev, - struct bnxt_ulp_ops *ulp_ops, void *handle); - int (*bnxt_unregister_device)(struct bnxt_en_dev *edev); - int (*bnxt_request_msix)(struct bnxt_en_dev *edev, - struct bnxt_msix_entry *ent, int num_msix); - void (*bnxt_free_msix)(struct bnxt_en_dev *edev); - int (*bnxt_send_fw_msg)(struct bnxt_en_dev *edev, - struct bnxt_fw_msg *fw_msg); - int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *edev, - unsigned long *events_bmap, u16 max_id); -}; - static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) { if (edev && edev->ulp_tbl) @@ -110,4 +96,13 @@ int bnxt_rdma_aux_device_add(struct bnxt *bp); void bnxt_rdma_aux_device_uninit(struct bnxt_aux_dev *bnxt_adev); void bnxt_rdma_aux_device_init(struct bnxt *bp); void bnxt_aux_dev_free(struct bnxt *bp); +int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, + void *handle); +void bnxt_unregister_dev(struct bnxt_en_dev *edev); +int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, struct bnxt_msix_entry *ent, + int num_msix); +void bnxt_free_msix_vecs(struct bnxt_en_dev *edev); +int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); +int bnxt_register_async_events(struct bnxt_en_dev *edev, + unsigned long *events_bmap, u16 max_id); #endif From patchwork Wed Dec 7 17:53:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067487 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1564C352A1 for ; Wed, 7 Dec 2022 17:54:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230231AbiLGRyL (ORCPT ); Wed, 7 Dec 2022 12:54:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230184AbiLGRxs (ORCPT ); Wed, 7 Dec 2022 12:53:48 -0500 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBD19554C4 for ; 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Wed, 07 Dec 2022 09:53:25 -0800 (PST) Received: from C02GC2QQMD6T.wifi.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id l6-20020a622506000000b005748aca80fesm13862242pfl.32.2022.12.07.09.53.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Dec 2022 09:53:25 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com Subject: [PATCH v5 5/7] bnxt_en: Use auxiliary bus calls over proprietary calls Date: Wed, 7 Dec 2022 09:53:08 -0800 Message-Id: <20221207175310.23656-6-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Wherever possible use the function ops provided by auxiliary bus instead of using proprietary ops. Defined bnxt_re_suspend and bnxt_re_resume calls which can be invoked by the bnxt_en driver instead of the ULP stop/start calls. Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/infiniband/hw/bnxt_re/main.c | 102 +++++++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 40 ++++--- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 2 - 3 files changed, 87 insertions(+), 57 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index e1777c8e6d5e..ae04198c33b7 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -226,45 +226,6 @@ static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev) bnxt_re_limit_vf_res(&rdev->qplib_ctx, num_vfs); } -/* for handling bnxt_en callbacks later */ -static void bnxt_re_stop(void *p) -{ - struct bnxt_re_dev *rdev = p; - struct bnxt *bp; - - if (!rdev) - return; - - /* L2 driver invokes this callback during device error/crash or device - * reset. Current RoCE driver doesn't recover the device in case of - * error. Handle the error by dispatching fatal events to all qps - * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as - * L2 driver want to modify the MSIx table. - */ - bp = netdev_priv(rdev->netdev); - - ibdev_info(&rdev->ibdev, "Handle device stop call from L2 driver"); - /* Check the current device state from L2 structure and move the - * device to detached state if FW_FATAL_COND is set. - * This prevents more commands to HW during clean-up, - * in case the device is already in error. - */ - if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) - set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); - - bnxt_re_dev_stop(rdev); - bnxt_re_stop_irq(rdev); - /* Move the device states to detached and avoid sending any more - * commands to HW - */ - set_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags); - set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); -} - -static void bnxt_re_start(void *p) -{ -} - static void bnxt_re_sriov_config(void *p, int num_vfs) { struct bnxt_re_dev *rdev = p; @@ -341,8 +302,6 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) } static struct bnxt_ulp_ops bnxt_re_ulp_ops = { - .ulp_stop = bnxt_re_stop, - .ulp_start = bnxt_re_start, .ulp_sriov_config = bnxt_re_sriov_config, .ulp_irq_stop = bnxt_re_stop_irq, .ulp_irq_restart = bnxt_re_start_irq @@ -1585,6 +1544,65 @@ static int bnxt_re_probe(struct auxiliary_device *adev, return rc; } +static int bnxt_re_suspend(struct auxiliary_device *adev, pm_message_t state) +{ + struct bnxt_re_dev *rdev = auxiliary_get_drvdata(adev); + struct bnxt *bp; + + if (!rdev) + return 0; + + mutex_lock(&bnxt_re_mutex); + /* L2 driver may invoke this callback during device error/crash or device + * reset. Current RoCE driver doesn't recover the device in case of + * error. Handle the error by dispatching fatal events to all qps + * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as + * L2 driver want to modify the MSIx table. + */ + bp = netdev_priv(rdev->netdev); + + ibdev_info(&rdev->ibdev, "Handle device suspend call"); + /* Check the current device state from L2 structure and move the + * device to detached state if FW_FATAL_COND is set. + * This prevents more commands to HW during clean-up, + * in case the device is already in error. + */ + if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); + + bnxt_re_dev_stop(rdev); + bnxt_re_stop_irq(rdev); + /* Move the device states to detached and avoid sending any more + * commands to HW + */ + set_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags); + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); + mutex_unlock(&bnxt_re_mutex); + + return 0; +} + +static int bnxt_re_resume(struct auxiliary_device *adev) +{ + struct bnxt_re_dev *rdev = auxiliary_get_drvdata(adev); + + if (!rdev) + return 0; + + mutex_lock(&bnxt_re_mutex); + /* L2 driver may invoke this callback during device recovery, resume. + * reset. Current RoCE driver doesn't recover the device in case of + * error. Handle the error by dispatching fatal events to all qps + * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as + * L2 driver want to modify the MSIx table. + */ + + ibdev_info(&rdev->ibdev, "Handle device resume call"); + mutex_unlock(&bnxt_re_mutex); + + return 0; +} + static const struct auxiliary_device_id bnxt_re_id_table[] = { { .name = BNXT_ADEV_NAME ".rdma", }, {}, @@ -1597,6 +1615,8 @@ static struct auxiliary_driver bnxt_re_driver = { .probe = bnxt_re_probe, .remove = bnxt_re_remove, .shutdown = bnxt_re_shutdown, + .suspend = bnxt_re_suspend, + .resume = bnxt_re_resume, .id_table = bnxt_re_id_table, }; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index edc4d49502ab..8e11603387dd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -272,26 +272,31 @@ static void bnxt_ulp_put(struct bnxt_ulp *ulp) void bnxt_ulp_stop(struct bnxt *bp) { + struct bnxt_aux_dev *bnxt_aux = bp->aux_dev; struct bnxt_en_dev *edev = bp->edev; - struct bnxt_ulp_ops *ops; - struct bnxt_ulp *ulp; if (!edev) return; edev->flags |= BNXT_EN_FLAG_ULP_STOPPED; - ulp = edev->ulp_tbl; - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_stop) - return; - ops->ulp_stop(ulp->handle); + if (bnxt_aux) { + struct auxiliary_device *adev; + + adev = &bnxt_aux->aux_dev; + if (adev->dev.driver) { + struct auxiliary_driver *adrv; + pm_message_t pm = {}; + + adrv = to_auxiliary_drv(adev->dev.driver); + adrv->suspend(adev, pm); + } + } } void bnxt_ulp_start(struct bnxt *bp, int err) { + struct bnxt_aux_dev *bnxt_aux = bp->aux_dev; struct bnxt_en_dev *edev = bp->edev; - struct bnxt_ulp_ops *ops; - struct bnxt_ulp *ulp; if (!edev) return; @@ -301,11 +306,18 @@ void bnxt_ulp_start(struct bnxt *bp, int err) if (err) return; - ulp = edev->ulp_tbl; - ops = rtnl_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_start) - return; - ops->ulp_start(ulp->handle); + if (bnxt_aux) { + struct auxiliary_device *adev; + + adev = &bnxt_aux->aux_dev; + if (adev->dev.driver) { + struct auxiliary_driver *adrv; + + adrv = to_auxiliary_drv(adev->dev.driver); + adrv->resume(adev); + } + } + } void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index b16dbf217dcd..526afd1e06b2 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -29,8 +29,6 @@ struct bnxt_msix_entry { struct bnxt_ulp_ops { /* async_notifier() cannot sleep (in BH context) */ void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); - void (*ulp_stop)(void *); - void (*ulp_start)(void *); void (*ulp_sriov_config)(void *, int); void (*ulp_irq_stop)(void *); void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); From patchwork Wed Dec 7 17:53:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067488 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4266C4708E for ; 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Wed, 07 Dec 2022 09:53:27 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com, Hongguang Gao Subject: [PATCH v5 6/7] bnxt_en: Remove struct bnxt access from RoCE driver Date: Wed, 7 Dec 2022 09:53:09 -0800 Message-Id: <20221207175310.23656-7-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Hongguang Gao Decouple RoCE driver from directly accessing L2's private bnxt structure. Move the fields needed by RoCE driver into bnxt_en_dev. They'll be passed to RoCE driver by bnxt_rdma_aux_device_add() function. Signed-off-by: Hongguang Gao Signed-off-by: Ajit Khaparde Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Xavier --- drivers/infiniband/hw/bnxt_re/main.c | 22 ++++++------------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 9 ++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 11 ++++++++++ 3 files changed, 27 insertions(+), 15 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index ae04198c33b7..3251078e9fe3 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -112,16 +112,14 @@ static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev, u8 wqe_mode) { struct bnxt_qplib_chip_ctx *chip_ctx; struct bnxt_en_dev *en_dev; - struct bnxt *bp; en_dev = rdev->en_dev; - bp = netdev_priv(en_dev->net); chip_ctx = kzalloc(sizeof(*chip_ctx), GFP_KERNEL); if (!chip_ctx) return -ENOMEM; - chip_ctx->chip_num = bp->chip_num; - chip_ctx->hw_stats_size = bp->hw_ring_stats_size; + chip_ctx->chip_num = en_dev->chip_num; + chip_ctx->hw_stats_size = en_dev->hw_ring_stats_size; rdev->chip_ctx = chip_ctx; /* rest members to follow eventually */ @@ -129,7 +127,7 @@ static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev, u8 wqe_mode) rdev->qplib_res.cctx = rdev->chip_ctx; rdev->rcfw.res = &rdev->qplib_res; rdev->qplib_res.dattr = &rdev->dev_attr; - rdev->qplib_res.is_vf = BNXT_VF(bp); + rdev->qplib_res.is_vf = BNXT_EN_VF(en_dev); bnxt_re_set_drv_mode(rdev, wqe_mode); if (bnxt_qplib_determine_atomics(en_dev->pdev)) @@ -142,10 +140,7 @@ static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev, u8 wqe_mode) static void bnxt_re_get_sriov_func_type(struct bnxt_re_dev *rdev) { - struct bnxt *bp; - - bp = netdev_priv(rdev->en_dev->net); - if (BNXT_VF(bp)) + if (BNXT_EN_VF(rdev->en_dev)) rdev->is_virtfn = 1; } @@ -957,7 +952,6 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, u64 *cid_map) { struct hwrm_queue_pri2cos_qcfg_input req = {0}; - struct bnxt *bp = netdev_priv(rdev->netdev); struct hwrm_queue_pri2cos_qcfg_output resp; struct bnxt_en_dev *en_dev = rdev->en_dev; struct bnxt_fw_msg fw_msg; @@ -974,7 +968,7 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, flags |= (dir & 0x01); flags |= HWRM_QUEUE_PRI2COS_QCFG_INPUT_FLAGS_IVLAN; req.flags = cpu_to_le32(flags); - req.port_id = bp->pf.port_id; + req.port_id = en_dev->pf_port_id; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); @@ -1547,7 +1541,6 @@ static int bnxt_re_probe(struct auxiliary_device *adev, static int bnxt_re_suspend(struct auxiliary_device *adev, pm_message_t state) { struct bnxt_re_dev *rdev = auxiliary_get_drvdata(adev); - struct bnxt *bp; if (!rdev) return 0; @@ -1559,15 +1552,14 @@ static int bnxt_re_suspend(struct auxiliary_device *adev, pm_message_t state) * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as * L2 driver want to modify the MSIx table. */ - bp = netdev_priv(rdev->netdev); ibdev_info(&rdev->ibdev, "Handle device suspend call"); - /* Check the current device state from L2 structure and move the + /* Check the current device state from bnxt_en_dev and move the * device to detached state if FW_FATAL_COND is set. * This prevents more commands to HW during clean-up, * in case the device is already in error. */ - if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + if (test_bit(BNXT_STATE_FW_FATAL_COND, &rdev->en_dev->en_state)) set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); bnxt_re_dev_stop(rdev); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index 8e11603387dd..ca612a8f38c2 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -288,6 +288,7 @@ void bnxt_ulp_stop(struct bnxt *bp) pm_message_t pm = {}; adrv = to_auxiliary_drv(adev->dev.driver); + edev->en_state = bp->state; adrv->suspend(adev, pm); } } @@ -314,6 +315,7 @@ void bnxt_ulp_start(struct bnxt *bp, int err) struct auxiliary_driver *adrv; adrv = to_auxiliary_drv(adev->dev.driver); + edev->en_state = bp->state; adrv->resume(adev); } } @@ -521,6 +523,13 @@ static inline void bnxt_set_edev_info(struct bnxt_en_dev *edev, struct bnxt *bp) edev->flags |= BNXT_EN_FLAG_ROCEV1_CAP; if (bp->flags & BNXT_FLAG_ROCEV2_CAP) edev->flags |= BNXT_EN_FLAG_ROCEV2_CAP; + if (bp->flags & BNXT_FLAG_VF) + edev->flags |= BNXT_EN_FLAG_VF; + + edev->chip_num = bp->chip_num; + edev->hw_ring_stats_size = bp->hw_ring_stats_size; + edev->pf_port_id = bp->pf.port_id; + edev->en_state = bp->state; } int bnxt_rdma_aux_device_add(struct bnxt *bp) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 526afd1e06b2..ad0c63da11d0 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -62,6 +62,9 @@ struct bnxt_en_dev { BNXT_EN_FLAG_ROCEV2_CAP) #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 + #define BNXT_EN_FLAG_VF 0x10 +#define BNXT_EN_VF(edev) ((edev)->flags & BNXT_EN_FLAG_VF) + struct bnxt_ulp *ulp_tbl; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 @@ -71,6 +74,14 @@ struct bnxt_en_dev { * bytes mapped as non- * cacheable. */ + u16 chip_num; + u16 hw_ring_stats_size; + u16 pf_port_id; + unsigned long en_state; /* Could be checked in + * RoCE driver suspend + * mode only. Will be + * updated in resume. + */ }; static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) From patchwork Wed Dec 7 17:53:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 13067489 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A4C3C352A1 for ; Wed, 7 Dec 2022 17:54:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230263AbiLGRyT (ORCPT ); Wed, 7 Dec 2022 12:54:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229724AbiLGRxv (ORCPT ); Wed, 7 Dec 2022 12:53:51 -0500 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 237345CD03 for ; Wed, 7 Dec 2022 09:53:30 -0800 (PST) Received: by mail-pf1-x42f.google.com with SMTP id k79so18122463pfd.7 for ; Wed, 07 Dec 2022 09:53:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=aBch43B7OP37B+8rdf+6RfJmlZMPGHDGwqzHfJQ+Xo4=; b=AQQbhf4UMbMINxiUdB2HlR0f+yEjGQe5OHoks6f5Cs5YzFcAvnAZC5hfIH0ujDuonc ECNVHVIRVdu0axw/EEqUFrL23r6DfwdCBo8J/wSjGU1Npp74K0z/lEQA+4KM6+FF3iGp s/GL/mFNQIeCjjq2dTXM+Qe7UYimX2OiBeaec= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=aBch43B7OP37B+8rdf+6RfJmlZMPGHDGwqzHfJQ+Xo4=; b=18zVhGqaynliXGAIgzLuNGjgfgvWm7yVgk2byfwjAiT1c6KhnZkHI3HRPmr7wzNOMm JJokf6bnm/SIAKACwa1kzwo2TW2NiuMYTVNn4yQM/NLc9c1S05w3gvHJRvjRRF6Adp5T GFgyLz9EDOOWCSig4GXKJBe4cgoJFyqAmjf86SuduVNj36reeIQj/aJanu9CCvUyWnIw c5PpGp+br2aZ9oF5crtXlOpqTQ7HzfrscL4PwB/Bo45yu85Fl2DOh15B4Y0RhBhnAKI8 McbqmZVk5e2ZW6Vqkf93kKtPzjty/PBNPHjZOiGL9KpoG3YRjfg8XYwmZW6sVZBMBYqi 5qkw== X-Gm-Message-State: ANoB5pkFoB+9+0rimCsuU5KuXTy2pfZ/q2p8niSPJ8lX1jyTahLpolQu WbQ7PBMiraUGQBM0texszDNF7g== X-Google-Smtp-Source: AA0mqf4TOzsxeEJVNepbNaWXuin6CYE9KUX87KJ4BlaSpxKCETKJrZJIQ8S3CWiplBbA17eG031uYw== X-Received: by 2002:a63:4944:0:b0:46f:ec9f:dcb0 with SMTP id y4-20020a634944000000b0046fec9fdcb0mr67861828pgk.202.1670435610188; Wed, 07 Dec 2022 09:53:30 -0800 (PST) Received: from C02GC2QQMD6T.wifi.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id l6-20020a622506000000b005748aca80fesm13862242pfl.32.2022.12.07.09.53.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Dec 2022 09:53:29 -0800 (PST) From: Ajit Khaparde To: ajit.khaparde@broadcom.com Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net, edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, michael.chan@broadcom.com, netdev@vger.kernel.org, pabeni@redhat.com, selvin.xavier@broadcom.com, Leon Romanovsky Subject: [PATCH v5 7/7] RDMA/bnxt_re: Remove the sriov config callback Date: Wed, 7 Dec 2022 09:53:10 -0800 Message-Id: <20221207175310.23656-8-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221207175310.23656-1-ajit.khaparde@broadcom.com> References: <20221207175310.23656-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Remove the SRIOV config callback which the bnxt_en was calling to reconfigure the chip resources for a PF device when VFs are created. The code is now modified to provision the VF resources based on the total VF count instead of the actual VF count. This allows the SRIOV config callback to be removed from the list of ulp_ops. Suggested-by: Leon Romanovsky Signed-off-by: Ajit Khaparde --- drivers/infiniband/hw/bnxt_re/main.c | 7 ++++- .../net/ethernet/broadcom/bnxt/bnxt_sriov.c | 7 +---- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 29 ------------------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 1 - 4 files changed, 7 insertions(+), 37 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 3251078e9fe3..5811385e0439 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -297,7 +297,6 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) } static struct bnxt_ulp_ops bnxt_re_ulp_ops = { - .ulp_sriov_config = bnxt_re_sriov_config, .ulp_irq_stop = bnxt_re_stop_irq, .ulp_irq_restart = bnxt_re_start_irq }; @@ -1361,6 +1360,12 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode) set_bit(BNXT_RE_FLAG_RESOURCES_INITIALIZED, &rdev->flags); if (!rdev->is_virtfn) { + /* + * Use the total VF count since the actual VF count may not be + * available at this point. + */ + bnxt_re_sriov_config(rdev, + pci_sriov_get_totalvfs(rdev->en_dev->pdev)); rc = bnxt_re_setup_qos(rdev); if (rc) ibdev_info(&rdev->ibdev, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index a4cba7cb2783..3ed3a2b3b3a9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -749,7 +749,6 @@ int bnxt_cfg_hw_sriov(struct bnxt *bp, int *num_vfs, bool reset) *num_vfs = rc; } - bnxt_ulp_sriov_cfg(bp, *num_vfs); return 0; } @@ -823,10 +822,8 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs) goto err_out2; rc = pci_enable_sriov(bp->pdev, *num_vfs); - if (rc) { - bnxt_ulp_sriov_cfg(bp, 0); + if (rc) goto err_out2; - } return 0; @@ -872,8 +869,6 @@ void bnxt_sriov_disable(struct bnxt *bp) rtnl_lock(); bnxt_restore_pf_fw_resources(bp); rtnl_unlock(); - - bnxt_ulp_sriov_cfg(bp, 0); } int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index ca612a8f38c2..a7c81cb950dc 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -260,16 +260,6 @@ int bnxt_send_msg(struct bnxt_en_dev *edev, } EXPORT_SYMBOL(bnxt_send_msg); -static void bnxt_ulp_get(struct bnxt_ulp *ulp) -{ - atomic_inc(&ulp->ref_count); -} - -static void bnxt_ulp_put(struct bnxt_ulp *ulp) -{ - atomic_dec(&ulp->ref_count); -} - void bnxt_ulp_stop(struct bnxt *bp) { struct bnxt_aux_dev *bnxt_aux = bp->aux_dev; @@ -322,25 +312,6 @@ void bnxt_ulp_start(struct bnxt *bp, int err) } -void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs) -{ - struct bnxt_en_dev *edev = bp->edev; - struct bnxt_ulp_ops *ops; - struct bnxt_ulp *ulp; - - if (!edev) - return; - ulp = edev->ulp_tbl; - - ops = rcu_dereference(ulp->ulp_ops); - if (!ops || !ops->ulp_sriov_config) - return; - - bnxt_ulp_get(ulp); - ops->ulp_sriov_config(ulp->handle, num_vfs); - bnxt_ulp_put(ulp); -} - void bnxt_ulp_irq_stop(struct bnxt *bp) { struct bnxt_en_dev *edev = bp->edev; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index ad0c63da11d0..fd8fd419602c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -29,7 +29,6 @@ struct bnxt_msix_entry { struct bnxt_ulp_ops { /* async_notifier() cannot sleep (in BH context) */ void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); - void (*ulp_sriov_config)(void *, int); void (*ulp_irq_stop)(void *); void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); };