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| author | Uma Krishnan <ukrishn@linux.vnet.ibm.com> | 2018-03-26 11:34:48 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-04-18 19:32:50 -0400 |
| commit | d44af4b09026609cf339de238b1051ec2701d6f0 (patch) | |
| tree | 37c962a0d6a0dbc9ed3d9c05f819fcbed5ffb874 /drivers/scsi/cxlflash/main.c | |
| parent | 23239eeccbe647b1da60dd930931c9520a336749 (diff) | |
| download | linux-d44af4b09026609cf339de238b1051ec2701d6f0.tar.gz linux-d44af4b09026609cf339de238b1051ec2701d6f0.tar.bz2 linux-d44af4b09026609cf339de238b1051ec2701d6f0.zip | |
scsi: cxlflash: Setup LISNs for master contexts
Similar to user contexts, master contexts also require that the per-context
LISN registers be programmed for certain AFUs. The mapped trigger page is
obtained from underlying transport and registered with AFU for each master
context.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash/main.c')
| -rw-r--r-- | drivers/scsi/cxlflash/main.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 5d754d1c22a0..8c55fcdc4f4b 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -1756,6 +1756,8 @@ static int init_global(struct cxlflash_cfg *cfg) u64 wwpn[MAX_FC_PORTS]; /* wwpn of AFU ports */ int i = 0, num_ports = 0; int rc = 0; + int j; + void *ctx; u64 reg; rc = read_vpd(cfg, &wwpn[0]); @@ -1816,6 +1818,25 @@ static int init_global(struct cxlflash_cfg *cfg) msleep(100); } + if (afu_is_ocxl_lisn(afu)) { + /* Set up the LISN effective address for each master */ + for (i = 0; i < afu->num_hwqs; i++) { + hwq = get_hwq(afu, i); + ctx = hwq->ctx_cookie; + + for (j = 0; j < hwq->num_irqs; j++) { + reg = cfg->ops->get_irq_objhndl(ctx, j); + writeq_be(reg, &hwq->ctrl_map->lisn_ea[j]); + } + + reg = hwq->ctx_hndl; + writeq_be(SISL_LISN_PASID(reg, reg), + &hwq->ctrl_map->lisn_pasid[0]); + writeq_be(SISL_LISN_PASID(0UL, reg), + &hwq->ctrl_map->lisn_pasid[1]); + } + } + /* Set up master's own CTX_CAP to allow real mode, host translation */ /* tables, afu cmds and read/write GSCSI cmds. */ /* First, unlock ctx_cap write by reading mbox */ |