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Bottomley" , "Martin K. Petersen" , Nilesh Javali , GR-QLogic-Storage-Upstream@marvell.com, Hannes Reinecke , Jesse Taube , "Gustavo A. R. Silva" , John Meneghini , Bryan Gurney , Chris Leech , "Ewan D . Milne" , shinichiro.kawasaki@wdc.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Hannes Reinecke Subject: [PATCH v2 6/7] nvme-fc: add nvme_fc_set_remoteport_fpin() Date: Wed, 2 Sep 2026 16:05:46 -0400 Message-ID: <20260902200547.184734-7-jtaubepe@redhat.com> In-Reply-To: <20260902200547.184734-1-jtaubepe@redhat.com> References: <20260902200547.184734-1-jtaubepe@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-MFC-PROC-ID: b3xZYJ686BtD3ewsJDb7BvO9n0D83xqqNmMiCHOQjMw_1788379575 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260902_130626_316375_D41F317F X-CRM114-Status: GOOD ( 14.02 ) 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 Add nvme_fc_set_remoteport_fpin() and supporting functions. This function is called by the SCSI FC transport and driver layer to set or clear the 'marginal' path status for a specific rport. Co-developed-by: Hannes Reinecke Signed-off-by: Hannes Reinecke Signed-off-by: John Meneghini Signed-off-by: Jesse Taube --- V10 -> V1: - Remove nvme_fc_modify_rport_fpin_state - Use struct nvme_fc_remote_port instead of wwpn and wwnn V1 -> V2: - Use nvme_ctrl_assign_marginal over set/clear_bit --- drivers/nvme/host/fc.c | 13 +++++++++++++ include/linux/nvme-fc-driver.h | 2 ++ 2 files changed, 15 insertions(+) diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 7886c0dcc626..c4810d048b87 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -895,6 +895,19 @@ nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *portptr, } EXPORT_SYMBOL_GPL(nvme_fc_set_remoteport_devloss); +void +nvme_fc_set_remoteport_fpin(struct nvme_fc_remote_port *portptr, bool marginal) +{ + struct nvme_fc_rport *rport = remoteport_to_rport(portptr); + struct nvme_fc_ctrl *ctrl; + unsigned long flags; + + spin_lock_irqsave(&rport->lock, flags); + list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list) + nvme_ctrl_assign_marginal(&ctrl->ctrl, marginal); + spin_unlock_irqrestore(&rport->lock, flags); +} +EXPORT_SYMBOL_GPL(nvme_fc_set_remoteport_fpin); /* *********************** FC-NVME DMA Handling **************************** */ diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index 9f6acadfe0c8..95d79386d126 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -536,6 +536,8 @@ void nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport); int nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *remoteport, u32 dev_loss_tmo); +void nvme_fc_set_remoteport_fpin(struct nvme_fc_remote_port *portptr, bool marginal); + /* * Routine called to pass a NVME-FC LS request, received by the lldd, * to the nvme-fc transport. -- 2.55.0