diff options
| author | Stefan Roscher <stefan.roscher at de.ibm.com> | 2007-07-20 16:04:17 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-20 21:19:47 -0700 |
| commit | e2f81daf23efde23d8cac1fc253d41838f0347cf (patch) | |
| tree | 310c493f007cc10625426118eaf217e50dd978f3 /drivers/infiniband/hw/ehca/ehca_eq.c | |
| parent | 0c10f7b79b5bb07a37aa5927072abdc3f45ac8d3 (diff) | |
IB/ehca: Support small QP queues
eHCA2 supports QP queues that can be as small as 512 bytes. This
greatly reduces memory overhead for consumers that use lots of QPs
with small queues (e.g. RDMA-only QPs). Apart from dealing with
firmware, this code needs to manage bite-sized chunks of kernel pages,
making sure that no kernel page is shared between different protection
domains.
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_eq.c')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_eq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_eq.c b/drivers/infiniband/hw/ehca/ehca_eq.c index 4825975f88c..1d41faa7a33 100644 --- a/drivers/infiniband/hw/ehca/ehca_eq.c +++ b/drivers/infiniband/hw/ehca/ehca_eq.c @@ -86,8 +86,8 @@ int ehca_create_eq(struct ehca_shca *shca, return -EINVAL; } - ret = ipz_queue_ctor(&eq->ipz_queue, nr_pages, - EHCA_PAGESIZE, sizeof(struct ehca_eqe), 0); + ret = ipz_queue_ctor(NULL, &eq->ipz_queue, nr_pages, + EHCA_PAGESIZE, sizeof(struct ehca_eqe), 0, 0); if (!ret) { ehca_err(ib_dev, "Can't allocate EQ pages eq=%p", eq); goto create_eq_exit1; @@ -145,7 +145,7 @@ int ehca_create_eq(struct ehca_shca *shca, return 0; create_eq_exit2: - ipz_queue_dtor(&eq->ipz_queue); + ipz_queue_dtor(NULL, &eq->ipz_queue); create_eq_exit1: hipz_h_destroy_eq(shca->ipz_hca_handle, eq); @@ -181,7 +181,7 @@ int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq) ehca_err(&shca->ib_device, "Can't free EQ resources."); return -EINVAL; } - ipz_queue_dtor(&eq->ipz_queue); + ipz_queue_dtor(NULL, &eq->ipz_queue); return 0; } |