diff options
| author | Ram Amrani <Ram.Amrani@cavium.com> | 2017-06-05 16:32:27 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-06-14 13:02:01 -0400 |
| commit | e57bb6be5e095351086d3e6de9853a0763342535 (patch) | |
| tree | b7c0eebe3f7a44c57ede96c41db2812e4920f4f6 /drivers/infiniband/hw/qedr/qedr.h | |
| parent | dac2738607de3d2bb99bae91c9054a2d753af18b (diff) | |
| download | linux-e57bb6be5e095351086d3e6de9853a0763342535.tar.bz2 | |
RDMA/qedr: Add 64KB PAGE_SIZE support to user-space queues
Add 64KB PAGE_SIZE support to user-space CQ, SQ and RQ queues.
De-facto it means that code was added to translate 64KB
pages to smaller 4KB pages that the FW can handle. Otherwise,
the FW would wrap (or jump to the next page) when reaching 4KB
while the user space library will continue on the same large page.
Note that MR code remains as is since the FW supports larger pages
for MRs.
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/qedr/qedr.h')
| -rw-r--r-- | drivers/infiniband/hw/qedr/qedr.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h index aa08c76a4245..d961f79b317c 100644 --- a/drivers/infiniband/hw/qedr/qedr.h +++ b/drivers/infiniband/hw/qedr/qedr.h @@ -58,7 +58,10 @@ #define QEDR_MSG_QP " QP" #define QEDR_MSG_GSI " GSI" -#define QEDR_CQ_MAGIC_NUMBER (0x11223344) +#define QEDR_CQ_MAGIC_NUMBER (0x11223344) + +#define FW_PAGE_SIZE (RDMA_RING_PAGE_SIZE) +#define FW_PAGE_SHIFT (12) struct qedr_dev; |