diff options
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.c')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 4ec7dddbbf4..376d640487d 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2300,7 +2300,7 @@ static void srp_add_one(struct ib_device *device) struct ib_device_attr *dev_attr; struct ib_fmr_pool_param fmr_param; struct srp_host *host; - int fmr_page_shift, s, e, p; + int max_pages_per_fmr, fmr_page_shift, s, e, p; dev_attr = kmalloc(sizeof *dev_attr, GFP_KERNEL); if (!dev_attr) @@ -2340,17 +2340,24 @@ static void srp_add_one(struct ib_device *device) if (IS_ERR(srp_dev->mr)) goto err_pd; - memset(&fmr_param, 0, sizeof fmr_param); - fmr_param.pool_size = SRP_FMR_POOL_SIZE; - fmr_param.dirty_watermark = SRP_FMR_DIRTY_SIZE; - fmr_param.cache = 1; - fmr_param.max_pages_per_fmr = SRP_FMR_SIZE; - fmr_param.page_shift = fmr_page_shift; - fmr_param.access = (IB_ACCESS_LOCAL_WRITE | - IB_ACCESS_REMOTE_WRITE | - IB_ACCESS_REMOTE_READ); - - srp_dev->fmr_pool = ib_create_fmr_pool(srp_dev->pd, &fmr_param); + for (max_pages_per_fmr = SRP_FMR_SIZE; + max_pages_per_fmr >= SRP_FMR_MIN_SIZE; + max_pages_per_fmr /= 2, srp_dev->fmr_max_size /= 2) { + memset(&fmr_param, 0, sizeof fmr_param); + fmr_param.pool_size = SRP_FMR_POOL_SIZE; + fmr_param.dirty_watermark = SRP_FMR_DIRTY_SIZE; + fmr_param.cache = 1; + fmr_param.max_pages_per_fmr = max_pages_per_fmr; + fmr_param.page_shift = fmr_page_shift; + fmr_param.access = (IB_ACCESS_LOCAL_WRITE | + IB_ACCESS_REMOTE_WRITE | + IB_ACCESS_REMOTE_READ); + + srp_dev->fmr_pool = ib_create_fmr_pool(srp_dev->pd, &fmr_param); + if (!IS_ERR(srp_dev->fmr_pool)) + break; + } + if (IS_ERR(srp_dev->fmr_pool)) srp_dev->fmr_pool = NULL; |