diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-04-09 16:37:30 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-04-12 03:37:48 +0200 |
| commit | 7eaae991c30d46a4ea45aa00f50eba939d7f951b (patch) | |
| tree | 44b01f8352ede1912a18a98efddcca866ca396eb | |
| parent | scsi: core: Initialize scsi midlayer limits before allocating the queue (diff) | |
| download | linux-7eaae991c30d46a4ea45aa00f50eba939d7f951b.tar.xz linux-7eaae991c30d46a4ea45aa00f50eba939d7f951b.zip | |
scsi: scsi_transport_fc: Add a max_bsg_segments field to struct fc_function_template
ibmvfc only supports a single segment for BSG FC passthrough. Instead of
having it set a queue limits after creating the BSG queues, add a field so
that the FC transport can set it before allocating the queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-6-hch@lst.de
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 2 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 1 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 05b126bfd18b..a3d1013c8307 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -5541,8 +5541,6 @@ static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt) rport->supported_classes |= FC_COS_CLASS2; if (be32_to_cpu(tgt->service_parms.class3_parms[0]) & 0x80000000) rport->supported_classes |= FC_COS_CLASS3; - if (rport->rqst_q) - blk_queue_max_segments(rport->rqst_q, 1); } else tgt_dbg(tgt, "rport add failed\n"); spin_unlock_irqrestore(vhost->host->host_lock, flags); @@ -6391,8 +6389,6 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id) ibmvfc_init_sub_crqs(vhost); - if (shost_to_fc_host(shost)->rqst_q) - blk_queue_max_segments(shost_to_fc_host(shost)->rqst_q, 1); dev_set_drvdata(dev, vhost); spin_lock(&ibmvfc_driver_lock); list_add_tail(&vhost->queue, &ibmvfc_head); @@ -6547,6 +6543,7 @@ static struct fc_function_template ibmvfc_transport_functions = { .get_starget_port_id = ibmvfc_get_starget_port_id, .show_starget_port_id = 1, + .max_bsg_segments = 1, .bsg_request = ibmvfc_bsg_request, .bsg_timeout = ibmvfc_bsg_timeout, }; diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 0799700b0fca..7d088b8da075 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -4288,6 +4288,7 @@ fc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) snprintf(bsg_name, sizeof(bsg_name), "fc_host%d", shost->host_no); scsi_init_limits(shost, &lim); + lim.max_segments = min_not_zero(lim.max_segments, i->f->max_bsg_segments); q = bsg_setup_queue(dev, bsg_name, &lim, fc_bsg_dispatch, fc_bsg_job_timeout, i->f->dd_bsg_size); if (IS_ERR(q)) { @@ -4320,6 +4321,7 @@ fc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) return -ENOTSUPP; scsi_init_limits(shost, &lim); + lim.max_segments = min_not_zero(lim.max_segments, i->f->max_bsg_segments); q = bsg_setup_queue(dev, dev_name(dev), &lim, fc_bsg_dispatch_prep, fc_bsg_job_timeout, i->f->dd_bsg_size); if (IS_ERR(q)) { diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 483513c57597..fd039306ffbb 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -709,6 +709,7 @@ struct fc_function_template { int (*vport_delete)(struct fc_vport *); /* bsg support */ + u32 max_bsg_segments; int (*bsg_request)(struct bsg_job *); int (*bsg_timeout)(struct bsg_job *); |