From 310887f688f76bb3eba589b9c2c1032d2078bb2b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 Apr 2024 06:27:59 +0200 Subject: [PATCH] scsi: mpi3mr: Switch to using ->device_configure Switch to the ->device_configure method instead of ->slave_configure and update the block limits on the passed in queue_limits instead of using the per-limit accessors. Note that mpi3mr also updates the limits from an event handler that iterates all SCSI devices. This is also updated to use the queue_limits, but the complete locking of this path probably means it already is completely broken and needs a proper audit. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20240410042759.GA2637@lst.de Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr_os.c | 73 ++++++++++++++------------------- 1 file changed, 30 insertions(+), 43 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 5f975e0db388..71f2c62db111 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -986,6 +986,25 @@ static int mpi3mr_change_queue_depth(struct scsi_device *sdev, return retval; } +static void mpi3mr_configure_nvme_dev(struct mpi3mr_tgt_dev *tgt_dev, + struct queue_limits *lim) +{ + u8 pgsz = tgt_dev->dev_spec.pcie_inf.pgsz ? : MPI3MR_DEFAULT_PGSZEXP; + + lim->max_hw_sectors = tgt_dev->dev_spec.pcie_inf.mdts / 512; + lim->virt_boundary_mask = (1 << pgsz) - 1; +} + +static void mpi3mr_configure_tgt_dev(struct mpi3mr_tgt_dev *tgt_dev, + struct queue_limits *lim) +{ + if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_PCIE && + (tgt_dev->dev_spec.pcie_inf.dev_info & + MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == + MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) + mpi3mr_configure_nvme_dev(tgt_dev, lim); +} + /** * mpi3mr_update_sdev - Update SCSI device information * @sdev: SCSI device reference @@ -1001,31 +1020,17 @@ static void mpi3mr_update_sdev(struct scsi_device *sdev, void *data) { struct mpi3mr_tgt_dev *tgtdev; + struct queue_limits lim; tgtdev = (struct mpi3mr_tgt_dev *)data; if (!tgtdev) return; mpi3mr_change_queue_depth(sdev, tgtdev->q_depth); - switch (tgtdev->dev_type) { - case MPI3_DEVICE_DEVFORM_PCIE: - /*The block layer hw sector size = 512*/ - if ((tgtdev->dev_spec.pcie_inf.dev_info & - MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == - MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) { - blk_queue_max_hw_sectors(sdev->request_queue, - tgtdev->dev_spec.pcie_inf.mdts / 512); - if (tgtdev->dev_spec.pcie_inf.pgsz == 0) - blk_queue_virt_boundary(sdev->request_queue, - ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1)); - else - blk_queue_virt_boundary(sdev->request_queue, - ((1 << tgtdev->dev_spec.pcie_inf.pgsz) - 1)); - } - break; - default: - break; - } + + lim = queue_limits_start_update(sdev->request_queue); + mpi3mr_configure_tgt_dev(tgtdev, &lim); + WARN_ON_ONCE(queue_limits_commit_update(sdev->request_queue, &lim)); } /** @@ -4393,15 +4398,17 @@ static void mpi3mr_target_destroy(struct scsi_target *starget) } /** - * mpi3mr_slave_configure - Slave configure callback handler + * mpi3mr_device_configure - Slave configure callback handler * @sdev: SCSI device reference + * @lim: queue limits * * Configure queue depth, max hardware sectors and virt boundary * as required * * Return: 0 always. */ -static int mpi3mr_slave_configure(struct scsi_device *sdev) +static int mpi3mr_device_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct scsi_target *starget; struct Scsi_Host *shost; @@ -4432,28 +4439,8 @@ static int mpi3mr_slave_configure(struct scsi_device *sdev) sdev->eh_timeout = MPI3MR_EH_SCMD_TIMEOUT; blk_queue_rq_timeout(sdev->request_queue, MPI3MR_SCMD_TIMEOUT); - switch (tgt_dev->dev_type) { - case MPI3_DEVICE_DEVFORM_PCIE: - /*The block layer hw sector size = 512*/ - if ((tgt_dev->dev_spec.pcie_inf.dev_info & - MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == - MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) { - blk_queue_max_hw_sectors(sdev->request_queue, - tgt_dev->dev_spec.pcie_inf.mdts / 512); - if (tgt_dev->dev_spec.pcie_inf.pgsz == 0) - blk_queue_virt_boundary(sdev->request_queue, - ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1)); - else - blk_queue_virt_boundary(sdev->request_queue, - ((1 << tgt_dev->dev_spec.pcie_inf.pgsz) - 1)); - } - break; - default: - break; - } - + mpi3mr_configure_tgt_dev(tgt_dev, lim); mpi3mr_tgtdev_put(tgt_dev); - return retval; } @@ -4921,7 +4908,7 @@ static const struct scsi_host_template mpi3mr_driver_template = { .queuecommand = mpi3mr_qcmd, .target_alloc = mpi3mr_target_alloc, .slave_alloc = mpi3mr_slave_alloc, - .slave_configure = mpi3mr_slave_configure, + .device_configure = mpi3mr_device_configure, .target_destroy = mpi3mr_target_destroy, .slave_destroy = mpi3mr_slave_destroy, .scan_finished = mpi3mr_scan_finished, -- 2.25.1