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 -> V11: - Remove nvme_fc_modify_rport_fpin_state - Use struct nvme_fc_remote_port instead of wwpn and wwnn --- drivers/nvme/host/fc.c | 16 ++++++++++++++++ include/linux/nvme-fc-driver.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index d2ca65f70a0c..4acf23ea8aea 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -895,6 +895,22 @@ 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; + + spin_lock_irq(&rport->lock); + list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list) { + if (marginal) + set_bit(NVME_CTRL_MARGINAL, &ctrl->ctrl.flags); + else + clear_bit(NVME_CTRL_MARGINAL, &ctrl->ctrl.flags); + } + spin_unlock_irq(&rport->lock); +} +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. -- 2.54.0