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 73E39C47DD9 for ; Fri, 22 Mar 2024 07:04:03 +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=P2QCsRRuRXrxOxKZx3LxqMIHPH NDqhecJJdxYxeiJmh1yBWHwasvmMchYwIL9k/lULjpHm2C2LA6y5fQ4o8ChOOvwsCwyaG7HLXw9FC ahBnKWYBtDu+KMIrddH450DRXydOFWMHP7QpULkzCmf1unpt4IPMyLuG+nbBsqXIgpDNwA038F0rU g1easYZBeRnbgVMloIwpmLoC+y7x3PATnjqC0WGLWWFbZ4Hs/eScCC2WGmR2nLgOBH+h/LhM8C8aB zzDDhEIlSJeYxsv1VBbG/J1FlQ/f2S2/jbwdqpogUkDLDIPomphcasI7v/QH84lEP/BO1rktx2CEv gnKAWQqg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rnYwc-000000067bg-2Dzs; Fri, 22 Mar 2024 07:04:02 +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 1rnYwQ-000000067Q0-0CeS for linux-nvme@lists.infradead.org; Fri, 22 Mar 2024 07:03:52 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id DD4F7CE16FD; Fri, 22 Mar 2024 07:03:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5117C43399; Fri, 22 Mar 2024 07:03:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711091027; bh=vR8nQgYNjAD4yYmLmr5uHxpnivAB2NrzH9ZpAphVMbw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VV+CXvO3U/7Wp8OUO/+iF0giclNfNg799uxRlhOoPJcjM9sLB/W1wSuYThCX55giq yTkowrsckenRuFipIP//7vgnNk66o9CbpW1xuliFbOYAilTrkegjZDz8hQnS4b0/gL +qbttITUgxpj4RUVwB4a891r0IGVJNQjEWa3Ev+wBJ5h3mFPuzhPtYkm6nhGerLEJ9 3rg2HRj+CtApEmHUqa5V8RW2cGCz4mNKPK19DM4aBV7Tayn36PmEfIzH+w3Un53+/b 9fAvwFcQMqzUatZM3VWerLCyM5vmMcjR9P31krwtMAWh31MysFBiGHHW04ZTgey2SV 8P8o9FJT++KIw== From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Hannes Reinecke Subject: [PATCH 5/8] nvmet-fc: implement host_traddr() Date: Fri, 22 Mar 2024 08:03:30 +0100 Message-Id: <20240322070333.3820-6-hare@kernel.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240322070333.3820-1-hare@kernel.org> References: <20240322070333.3820-1-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-20240322_000350_632176_727EEAF9 X-CRM114-Status: GOOD ( 14.37 ) 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