diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/device.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/device.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index 80069ad595c1..ae656016e1ae 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -41,10 +41,20 @@ #define DRV_VERSION "0.1" MODULE_AUTHOR("Steve Wise"); -MODULE_DESCRIPTION("Chelsio T4 RDMA Driver"); +MODULE_DESCRIPTION("Chelsio T4/T5 RDMA Driver"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(DRV_VERSION); +static int allow_db_fc_on_t5; +module_param(allow_db_fc_on_t5, int, 0644); +MODULE_PARM_DESC(allow_db_fc_on_t5, + "Allow DB Flow Control on T5 (default = 0)"); + +static int allow_db_coalescing_on_t5; +module_param(allow_db_coalescing_on_t5, int, 0644); +MODULE_PARM_DESC(allow_db_coalescing_on_t5, + "Allow DB Coalescing on T5 (default = 0)"); + struct uld_ctx { struct list_head entry; struct cxgb4_lld_info lldi; @@ -614,7 +624,7 @@ static int rdma_supported(const struct cxgb4_lld_info *infop) { return infop->vr->stag.size > 0 && infop->vr->pbl.size > 0 && infop->vr->rq.size > 0 && infop->vr->qp.size > 0 && - infop->vr->cq.size > 0 && infop->vr->ocq.size > 0; + infop->vr->cq.size > 0; } static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) @@ -627,6 +637,22 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) pci_name(infop->pdev)); return ERR_PTR(-ENOSYS); } + if (!ocqp_supported(infop)) + pr_info("%s: On-Chip Queues not supported on this device.\n", + pci_name(infop->pdev)); + + if (!is_t4(infop->adapter_type)) { + if (!allow_db_fc_on_t5) { + db_fc_threshold = 100000; + pr_info("DB Flow Control Disabled.\n"); + } + + if (!allow_db_coalescing_on_t5) { + db_coalescing_threshold = -1; + pr_info("DB Coalescing Disabled.\n"); + } + } + devp = (struct c4iw_dev *)ib_alloc_device(sizeof(*devp)); if (!devp) { printk(KERN_ERR MOD "Cannot allocate ib device\n"); @@ -678,8 +704,8 @@ static void *c4iw_uld_add(const struct cxgb4_lld_info *infop) int i; if (!vers_printed++) - printk(KERN_INFO MOD "Chelsio T4 RDMA Driver - version %s\n", - DRV_VERSION); + pr_info("Chelsio T4/T5 RDMA Driver - version %s\n", + DRV_VERSION); ctx = kzalloc(sizeof *ctx, GFP_KERNEL); if (!ctx) { |