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Third 5.0 rc pull request 

Three smallish patches fixing regressions in v5.0:
 
 - Fix cxgb4 to work again with non-4k page sizes
 
 - NULL pointer oops in SRP during sg_reset
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Small set of three regression fixing patches, things are looking
  pretty good here.

   - Fix cxgb4 to work again with non-4k page sizes

   - NULL pointer oops in SRP during sg_reset"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  iw_cxgb4: cq/qp mask depends on bar2 pages in a host page
  cxgb4: Export sge_host_page_size to ulds
  RDMA/srp: Rework SCSI device reset handling
This commit is contained in:
Linus Torvalds 2019-02-22 10:32:26 -08:00
parent a3504f7a38 f09ef134a7
commit 168bd29830
4 changed files with 15 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/infiniband/hw/cxgb4/device.c
View File

@ -783,6 +783,7 @@ void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
static int c4iw_rdev_open(struct c4iw_rdev *rdev)
{
int err;
unsigned int factor;
c4iw_init_dev_ucontext(rdev, &rdev->uctx);
@ -806,8 +807,18 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
return -EINVAL;
}
rdev->qpmask = rdev->lldi.udb_density - 1;
rdev->cqmask = rdev->lldi.ucq_density - 1;
/* This implementation requires a sge_host_page_size <= PAGE_SIZE. */
if (rdev->lldi.sge_host_page_size > PAGE_SIZE) {
pr_err("%s: unsupported sge host page size %u\n",
pci_name(rdev->lldi.pdev),
rdev->lldi.sge_host_page_size);
return -EINVAL;
}
factor = PAGE_SIZE / rdev->lldi.sge_host_page_size;
rdev->qpmask = (rdev->lldi.udb_density * factor) - 1;
rdev->cqmask = (rdev->lldi.ucq_density * factor) - 1;
pr_debug("dev %s stag start 0x%0x size 0x%0x num stags %d pbl start 0x%0x size 0x%0x rq start 0x%0x size 0x%0x qp qid start %u size %u cq qid start %u size %u srq size %u\n",
pci_name(rdev->lldi.pdev), rdev->lldi.vr->stag.start,
rdev->lldi.vr->stag.size, c4iw_num_stags(rdev),

10
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -3032,7 +3032,6 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
{
struct srp_target_port *target = host_to_target(scmnd->device->host);
struct srp_rdma_ch *ch;
int i, j;
u8 status;
shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
@ -3044,15 +3043,6 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
if (status)
return FAILED;
for (i = 0; i < target->ch_count; i++) {
ch = &target->ch[i];
for (j = 0; j < target->req_ring_size; ++j) {
struct srp_request *req = &ch->req_ring[j];
srp_finish_req(ch, req, scmnd->device, DID_RESET << 16);
}
}
return SUCCESS;
}

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
View File

@ -660,6 +660,7 @@ static void uld_init(struct adapter *adap, struct cxgb4_lld_info *lld)
lld->cclk_ps = 1000000000 / adap->params.vpd.cclk;
lld->udb_density = 1 << adap->params.sge.eq_qpp;
lld->ucq_density = 1 << adap->params.sge.iq_qpp;
lld->sge_host_page_size = 1 << (adap->params.sge.hps + 10);
lld->filt_mode = adap->params.tp.vlan_pri_map;
/* MODQ_REQ_MAP sets queues 0-3 to chan 0-3 */
for (i = 0; i < NCHAN; i++)

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View File

@ -336,6 +336,7 @@ struct cxgb4_lld_info {
unsigned int cclk_ps; /* Core clock period in psec */
unsigned short udb_density; /* # of user DB/page */
unsigned short ucq_density; /* # of user CQs/page */
unsigned int sge_host_page_size; /* SGE host page size */
unsigned short filt_mode; /* filter optional components */
unsigned short tx_modq[NCHAN]; /* maps each tx channel to a */
/* scheduler queue */