diff options
| author | Roland Dreier <rolandd@cisco.com> | 2008-07-15 10:48:49 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-07-15 10:48:49 +0400 |
| commit | 1ff66e8c1faee7c2711b84b9c89e1c5fcd767839 (patch) | |
| tree | 7a42adc119605abd1acb54d16b8a93f1effd2069 /drivers/infiniband/hw/nes/nes_utils.c | |
| parent | ee1e2c82c245a5fb2864e9dbcdaab3390fde3fcc (diff) | |
| download | linux-1ff66e8c1faee7c2711b84b9c89e1c5fcd767839.tar.xz | |
RDMA/nes: Encapsulate logic nes_put_cqp_request()
The iw_nes driver repeats the logic
if (atomic_dec_and_test(&cqp_request->refcount)) {
if (cqp_request->dynamic) {
kfree(cqp_request);
} else {
spin_lock_irqsave(&nesdev->cqp.lock, flags);
list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
}
}
over and over. Wrap this up in functions nes_free_cqp_request() and
nes_put_cqp_request() to simplify such code.
In addition to making the source smaller and more readable, this shrinks
the compiled code quite a bit:
add/remove: 2/0 grow/shrink: 0/13 up/down: 164/-1692 (-1528)
function old new delta
nes_free_cqp_request - 147 +147
nes_put_cqp_request - 17 +17
nes_modify_qp 2316 2293 -23
nes_hw_modify_qp 737 657 -80
nes_dereg_mr 945 860 -85
flush_wqes 501 416 -85
nes_manage_apbvt 648 560 -88
nes_reg_mr 1117 1026 -91
nes_cqp_ce_handler 927 769 -158
nes_alloc_mw 1052 884 -168
nes_create_qp 5314 5141 -173
nes_alloc_fmr 2212 2035 -177
nes_destroy_cq 1097 918 -179
nes_create_cq 2787 2598 -189
nes_dealloc_mw 762 566 -196
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Faisal Latif <flatif@neteffect.com>
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_utils.c')
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_utils.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c index fe83d1b2b177..8f519c860872 100644 --- a/drivers/infiniband/hw/nes/nes_utils.c +++ b/drivers/infiniband/hw/nes/nes_utils.c @@ -567,6 +567,30 @@ struct nes_cqp_request *nes_get_cqp_request(struct nes_device *nesdev) return cqp_request; } +void nes_free_cqp_request(struct nes_device *nesdev, + struct nes_cqp_request *cqp_request) +{ + unsigned long flags; + + nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) freed.\n", + cqp_request, + le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX]) & 0x3f); + + if (cqp_request->dynamic) { + kfree(cqp_request); + } else { + spin_lock_irqsave(&nesdev->cqp.lock, flags); + list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); + spin_unlock_irqrestore(&nesdev->cqp.lock, flags); + } +} + +void nes_put_cqp_request(struct nes_device *nesdev, + struct nes_cqp_request *cqp_request) +{ + if (atomic_dec_and_test(&cqp_request->refcount)) + nes_free_cqp_request(nesdev, cqp_request); +} /** * nes_post_cqp_request |