From nobody Wed Apr 1 22:37:27 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F412272E7C; Wed, 1 Apr 2026 15:31:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775057475; cv=none; b=BLcz01OXQl54ZXYeydVb7VGZuHAJuxt5zBCrJvCpTh5CtU9Om2micWgWee02oAHeq+YSSt90+ONYBNE274I53YdysKDxhM/l+eFJy832TL4mZkcx/5M3trZnsxvRAYvE0IGKYXvGYyno1tIulgTkO8z4uubMboJXXkAfQToMEmk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775057475; c=relaxed/simple; bh=qHwtEmiaUzALs1U8lxciI7QvUZJpw94pPRYf1wfFSqU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Y8VO83eW7W25kURYO5cGqUbtGIYMk1iXHUb5XDdBoxtW4jIAro9yv7mLTfW4n+FJePSHVPNzqJ750rKo86cg2OCrMQ/XfjyMbHwtbKZOHgK7Spxdo5nFSKReQ0fU/o94biJ4HOp1L/FNPL6vUKZZnWrG4P5fRZ8DBZzfZ2CkEtQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cMmyiwom; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cMmyiwom" Received: by smtp.kernel.org (Postfix) with ESMTPS id 33F1DC19423; Wed, 1 Apr 2026 15:31:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775057475; bh=qHwtEmiaUzALs1U8lxciI7QvUZJpw94pPRYf1wfFSqU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=cMmyiwomhgLSso3TKn4eYkzFQVY088BFI58f3gpMh8a6LLqnd17myfxG7CP4XU3ti XMX6Gxp+SN2GtVexdhjqNVkR3wwvTwri1u/2gYMiywHa3r5eLwNACCkYm+xTxCkpFx dbkG2nKNnMngWzTLfwr3nqcJY9g7HBnPihV6PPeZfcgMQJMWlDpjZYKD8ph9HvwSA7 MnMzztkmaQ2dqwfrfxmS9p9CuuEFvbG8/cfjMW3y5xLR+3J66KKH7GtSLa0T35Lk0f QQnUIBmBl40X07f3jgFtAUTI8ypZ3S4ionfG0ByI45fQtiMCa5VL8HBbHIelDU6UJR hK+fDr/xJSMqA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08FED10F6FD9; Wed, 1 Apr 2026 15:31:15 +0000 (UTC) From: Satish Kharat via B4 Relay Date: Wed, 01 Apr 2026 08:31:11 -0700 Subject: [PATCH net-next v4 1/6] enic: extend resource discovery for SR-IOV admin channel Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260401-enic-sriov-v2-prep-v4-1-d5834b2ef1b9@cisco.com> References: <20260401-enic-sriov-v2-prep-v4-0-d5834b2ef1b9@cisco.com> In-Reply-To: <20260401-enic-sriov-v2-prep-v4-0-d5834b2ef1b9@cisco.com> To: Satish Kharat , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1775057474; l=3356; i=satishkh@cisco.com; h=from:subject:message-id; bh=y0pGwL9wW5ULZUwdK19OUJqESwm7dxXUYk9R9IIroV8=; b=ZP9Adj0tYDtyKk8NvLNaGcW7dIiyFFcr0tbrBPONiWiuehFPYidDcpH6qC7pmXcqmXfbajRdE 0FnBEGKIU2pDQEMzhIZh4oo313Rk0QtzRildB1suTNEcikpT5Phf8Ds X-Developer-Key: i=satishkh@cisco.com; a=ed25519; pk=4BxbLoCGvHeIMH/PbpiNVx8/2IcTjFvqcr0AD8K6WLY= X-Endpoint-Received: by B4 Relay for satishkh@cisco.com/default with auth_id=639 X-Original-From: Satish Kharat Reply-To: satishkh@cisco.com From: Satish Kharat VIC firmware exposes admin channel resources (WQ, RQ, CQ) for PF-VF communication when SR-IOV is active. Add the corresponding resource type definitions and teach the discovery and access functions to handle them. Signed-off-by: Satish Kharat --- drivers/net/ethernet/cisco/enic/enic.h | 2 ++ drivers/net/ethernet/cisco/enic/vnic_dev.c | 10 ++++++++++ drivers/net/ethernet/cisco/enic/vnic_resource.h | 4 ++++ 3 files changed, 16 insertions(+) diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/= cisco/enic/enic.h index 6959e85ab516..366c65d072fc 100644 --- a/drivers/net/ethernet/cisco/enic/enic.h +++ b/drivers/net/ethernet/cisco/enic/enic.h @@ -297,6 +297,8 @@ static inline struct net_device *vnic_get_netdev(struct= vnic_dev *vdev) dev_warn(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__) #define vdev_info(vdev, fmt, ...) \ dev_info(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__) +#define vdev_dbg(vdev, fmt, ...) \ + dev_dbg(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__) =20 #define vdev_neterr(vdev, fmt, ...) \ netdev_err(vnic_get_netdev(vdev), fmt, ##__VA_ARGS__) diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.c b/drivers/net/ether= net/cisco/enic/vnic_dev.c index c72452749f5e..c8d657e97094 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_dev.c +++ b/drivers/net/ethernet/cisco/enic/vnic_dev.c @@ -77,6 +77,9 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev, u32 count =3D ioread32(&r->count); u32 len; =20 + vdev_dbg(vdev, "res type %u bar %u offset 0x%x count %u\n", + type, bar_num, bar_offset, count); + r++; =20 if (bar_num >=3D num_bars) @@ -90,6 +93,9 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev, case RES_TYPE_RQ: case RES_TYPE_CQ: case RES_TYPE_INTR_CTRL: + case RES_TYPE_ADMIN_WQ: + case RES_TYPE_ADMIN_RQ: + case RES_TYPE_ADMIN_CQ: /* each count is stride bytes long */ len =3D count * VNIC_RES_STRIDE; if (len + bar_offset > bar[bar_num].len) { @@ -102,6 +108,7 @@ static int vnic_dev_discover_res(struct vnic_dev *vdev, case RES_TYPE_INTR_PBA_LEGACY: case RES_TYPE_DEVCMD: case RES_TYPE_DEVCMD2: + case RES_TYPE_SRIOV_INTR: len =3D count; break; default: @@ -135,6 +142,9 @@ void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, e= num vnic_res_type type, case RES_TYPE_RQ: case RES_TYPE_CQ: case RES_TYPE_INTR_CTRL: + case RES_TYPE_ADMIN_WQ: + case RES_TYPE_ADMIN_RQ: + case RES_TYPE_ADMIN_CQ: return (char __iomem *)vdev->res[type].vaddr + index * VNIC_RES_STRIDE; default: diff --git a/drivers/net/ethernet/cisco/enic/vnic_resource.h b/drivers/net/= ethernet/cisco/enic/vnic_resource.h index b4776e334d63..d327821fa9b9 100644 --- a/drivers/net/ethernet/cisco/enic/vnic_resource.h +++ b/drivers/net/ethernet/cisco/enic/vnic_resource.h @@ -42,6 +42,10 @@ enum vnic_res_type { RES_TYPE_DEPRECATED1, /* Old version of devcmd 2 */ RES_TYPE_DEPRECATED2, /* Old version of devcmd 2 */ RES_TYPE_DEVCMD2, /* Device control region */ + RES_TYPE_SRIOV_INTR =3D 45, /* SR-IOV VF interrupt */ + RES_TYPE_ADMIN_WQ =3D 49, /* Admin channel WQ */ + RES_TYPE_ADMIN_RQ, /* Admin channel RQ */ + RES_TYPE_ADMIN_CQ, /* Admin channel CQ */ =20 RES_TYPE_MAX, /* Count of resource types */ }; --=20 2.43.0