From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 377FFCD11DD for ; Tue, 26 Mar 2024 12:04:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kiT+t1qG/VdSGW/5EQujDW8UKgIq9H0vwTRVSfAdPMo=; b=tUEYsouFsanVUGCsYwZjsYsrL1 OOVBqbIKIGKzsiCGtwmkkU0B9cue68OLphnfBjHtVvuFMLhuoApqQkn1NYI1ptqOTtt8kCUDsgi+0 ujsb1XHiZQLKdYSdsJMJ6w5CF5stQ7MAEVAa1JABDIYsMUjcm/hpr/sW6gHyc1fhkSBZqWNb88Np6 pl/kLreZK/8Np+FxXWBN/o/K7W6pxGr6g6i37WhtVtJiSF5LG9BL89OFQU/t7bbnIUIhe6hwE9RO8 /CShs1IR25ZHtOvmM2A0BzlHaZ1PSVtie9yo3CggiOjCGBqEyGo5mo7GnEFLdZWSuMcj9daErDzid cW2R/0/A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rp5XK-00000004Nel-1wFa; Tue, 26 Mar 2024 12:04:14 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rp5X8-00000004NVL-2SNv for linux-nvme@lists.infradead.org; Tue, 26 Mar 2024 12:04:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id E5CA5CE20BC; Tue, 26 Mar 2024 12:04:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4DC99C433C7; Tue, 26 Mar 2024 12:03:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711454640; bh=vR8nQgYNjAD4yYmLmr5uHxpnivAB2NrzH9ZpAphVMbw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ntyOewsMYdSo27UAlEdeVkmYrH/CKiWlWPT0qTYPeh5HiFtvt356IvYj2tQpOjGKp +h8vtV8ih1VTTb6Zujmn58FfAGh4yKA6UOKBt4AqfmkP7PQDeIhqd1hYG1jyjs0kk+ xhVSQfy73s6LFyNN4dBewnf7loj77vUqY7OphGk1s1x7uB2nHivKwDezqs6ZnEde6W 3u1T98TgKKA3BuaRLiuiMezzLRowSmsX53oPfFzr7BF4o3TeLzqNpJeQtWXC8ouEZS Gz1mbd6+hHDUbO0y9Qk8tUWGwsUIMFPqwYygg4yokdBUTrRfcLLLs6JCkWKYG1rtS0 v09JRVGTrLNpA== From: Hannes Reinecke To: Christoph Hellwig Cc: Keith Busch , Sagi Grimberg , linux-nvme@lists.infradead.org, Hannes Reinecke Subject: [PATCH 5/7] nvmet-fc: implement host_traddr() Date: Tue, 26 Mar 2024 13:03:40 +0100 Message-Id: <20240326120342.105740-6-hare@kernel.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240326120342.105740-1-hare@kernel.org> References: <20240326120342.105740-1-hare@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240326_050403_154888_5F739A89 X-CRM114-Status: GOOD ( 14.21 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Implement callback to display the host transport address by adding a callback 'host_traddr' for nvmet_fc_target_template. Signed-off-by: Hannes Reinecke --- drivers/nvme/target/fc.c | 33 +++++++++++++++++++++++++++++++++ include/linux/nvme-fc-driver.h | 4 ++++ 2 files changed, 37 insertions(+) diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c index fd229f310c93..b4706a8a9837 100644 --- a/drivers/nvme/target/fc.c +++ b/drivers/nvme/target/fc.c @@ -2931,6 +2931,38 @@ nvmet_fc_discovery_chg(struct nvmet_port *port) tgtport->ops->discovery_event(&tgtport->fc_target_port); } +static ssize_t +nvmet_fc_host_traddr(struct nvmet_ctrl *ctrl, + char *traddr, size_t traddr_size) +{ + struct nvmet_sq *sq = ctrl->sqs[0]; + struct nvmet_fc_tgt_queue *queue = + container_of(sq, struct nvmet_fc_tgt_queue, nvme_sq); + struct nvmet_fc_tgtport *tgtport = queue->assoc ? queue->assoc->tgtport : NULL; + struct nvmet_fc_hostport *hostport = queue->assoc ? queue->assoc->hostport : NULL; + u64 wwnn, wwpn; + ssize_t ret = 0; + + if (!tgtport || !nvmet_fc_tgtport_get(tgtport)) + return -ENODEV; + if (!hostport || !nvmet_fc_hostport_get(hostport)) { + ret = -ENODEV; + goto out_put; + } + + if (tgtport->ops->host_traddr) { + ret = tgtport->ops->host_traddr(hostport->hosthandle, &wwnn, &wwpn); + if (ret) + goto out_put_host; + ret = snprintf(traddr, traddr_size, "nn-0x%llx:pn-0x%llx", wwnn, wwpn); + } +out_put_host: + nvmet_fc_hostport_put(hostport); +out_put: + nvmet_fc_tgtport_put(tgtport); + return ret; +} + static const struct nvmet_fabrics_ops nvmet_fc_tgt_fcp_ops = { .owner = THIS_MODULE, .type = NVMF_TRTYPE_FC, @@ -2940,6 +2972,7 @@ static const struct nvmet_fabrics_ops nvmet_fc_tgt_fcp_ops = { .queue_response = nvmet_fc_fcp_nvme_cmd_done, .delete_ctrl = nvmet_fc_delete_ctrl, .discovery_chg = nvmet_fc_discovery_chg, + .host_traddr = nvmet_fc_host_traddr, }; static int __init nvmet_fc_init_module(void) diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index 4109f1bd6128..89ea1ebd975a 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -920,6 +920,9 @@ struct nvmet_fc_target_port { * further references to hosthandle. * Entrypoint is Mandatory if the lldd calls nvmet_fc_invalidate_host(). * + * @host_traddr: called by the transport to retrieve the node name and + * port name of the host port address. + * * @max_hw_queues: indicates the maximum number of hw queues the LLDD * supports for cpu affinitization. * Value is Mandatory. Must be at least 1. @@ -975,6 +978,7 @@ struct nvmet_fc_target_template { void (*ls_abort)(struct nvmet_fc_target_port *targetport, void *hosthandle, struct nvmefc_ls_req *lsreq); void (*host_release)(void *hosthandle); + int (*host_traddr)(void *hosthandle, u64 *wwnn, u64 *wwpn); u32 max_hw_queues; u16 max_sgl_segments; -- 2.35.3