diff options
| author | Roland Dreier <rolandd@cisco.com> | 2007-07-18 22:30:34 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-18 22:30:34 +0400 |
| commit | 80885456e844552044c8c5f1f9bf0f6773b187ea (patch) | |
| tree | 350fd53a7ef9fadd94a21aa1d282296dc787d2a6 /drivers/infiniband/hw/mthca/mthca_wqe.h | |
| parent | 7f5eb9bb8c7fb3bd411674b856872d7ab4a7b1a3 (diff) | |
| download | linux-80885456e844552044c8c5f1f9bf0f6773b187ea.tar.xz | |
IB/mthca: Factor out setting WQE data segment entries
Factor code to set data segment entries out of the work request
posting functions into inline functions mthca_set_data_seg() and
mthca_set_data_seg_inval(). This makes the code more readable and
also allows the compiler to do a better job -- on x86_64:
add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-69 (-69)
function old new delta
mthca_arbel_post_srq_recv 373 369 -4
mthca_arbel_post_receive 570 562 -8
mthca_tavor_post_srq_recv 520 508 -12
mthca_tavor_post_send 1344 1330 -14
mthca_arbel_post_send 1481 1467 -14
mthca_tavor_post_receive 792 775 -17
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_wqe.h')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_wqe.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h index e7d2c1e86199..f6a66fe78e48 100644 --- a/drivers/infiniband/hw/mthca/mthca_wqe.h +++ b/drivers/infiniband/hw/mthca/mthca_wqe.h @@ -113,4 +113,19 @@ struct mthca_mlx_seg { __be16 vcrc; }; +static __always_inline void mthca_set_data_seg(struct mthca_data_seg *dseg, + struct ib_sge *sg) +{ + dseg->byte_count = cpu_to_be32(sg->length); + dseg->lkey = cpu_to_be32(sg->lkey); + dseg->addr = cpu_to_be64(sg->addr); +} + +static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg) +{ + dseg->byte_count = 0; + dseg->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); + dseg->addr = 0; +} + #endif /* MTHCA_WQE_H */ |