diff options
author | Roland Dreier | 2008-07-15 08:48:49 +0200 |
---|---|---|
committer | Roland Dreier | 2008-07-15 08:48:49 +0200 |
commit | 1ff66e8c1faee7c2711b84b9c89e1c5fcd767839 (patch) | |
tree | 7a42adc119605abd1acb54d16b8a93f1effd2069 /drivers/infiniband/hw | |
parent | IPoIB: Refresh paths instead of flushing them on SM change events (diff) | |
download | kernel-qcow2-linux-1ff66e8c1faee7c2711b84b9c89e1c5fcd767839.tar.gz kernel-qcow2-linux-1ff66e8c1faee7c2711b84b9c89e1c5fcd767839.tar.xz kernel-qcow2-linux-1ff66e8c1faee7c2711b84b9c89e1c5fcd767839.zip |
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')
-rw-r--r-- | drivers/infiniband/hw/nes/nes.h | 4 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes_hw.c | 60 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes_utils.c | 24 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes_verbs.c | 189 |
4 files changed, 66 insertions, 211 deletions
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h index 61b46e9c7d2d..fe88bec48949 100644 --- a/drivers/infiniband/hw/nes/nes.h +++ b/drivers/infiniband/hw/nes/nes.h @@ -538,6 +538,10 @@ void nes_read_1G_phy_reg(struct nes_device *, u8, u8, u16 *); void nes_write_10G_phy_reg(struct nes_device *, u16, u8, u16, u16); void nes_read_10G_phy_reg(struct nes_device *, u8, u8, u16); struct nes_cqp_request *nes_get_cqp_request(struct nes_device *); +void nes_free_cqp_request(struct nes_device *nesdev, + struct nes_cqp_request *cqp_request); +void nes_put_cqp_request(struct nes_device *nesdev, + struct nes_cqp_request *cqp_request); void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *, int); int nes_arp_table(struct nes_device *, u32, u8 *, u32); void nes_mh_fix(unsigned long); diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index d3278f111ca7..80e486653ec9 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -2710,39 +2710,11 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq) barrier(); cqp_request->request_done = 1; wake_up(&cqp_request->waitq); - if (atomic_dec_and_test(&cqp_request->refcount)) { - 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); - } - } - } else if (cqp_request->callback) { - /* Envoke the callback routine */ - cqp_request->cqp_callback(nesdev, cqp_request); - 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); - } + nes_put_cqp_request(nesdev, cqp_request); } else { - 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); - } + if (cqp_request->callback) + cqp_request->cqp_callback(nesdev, cqp_request); + nes_free_cqp_request(nesdev, cqp_request); } } else { wake_up(&nesdev->cqp.waitq); @@ -3149,7 +3121,6 @@ int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port, { struct nes_device *nesdev = nesvnic->nesdev; struct nes_hw_cqp_wqe *cqp_wqe; - unsigned long flags; struct nes_cqp_request *cqp_request; int ret = 0; u16 major_code; @@ -3184,15 +3155,9 @@ int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port, nes_debug(NES_DBG_QP, "Completed, ret=%u, CQP Major:Minor codes = 0x%04X:0x%04X\n", ret, cqp_request->major_code, cqp_request->minor_code); major_code = cqp_request->major_code; - 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); - } - } + + nes_put_cqp_request(nesdev, cqp_request); + if (!ret) return -ETIME; else if (major_code) @@ -3262,7 +3227,6 @@ void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr, void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp, u32 which_wq, u32 wait_completion) { - unsigned long flags; struct nes_cqp_request *cqp_request; struct nes_hw_cqp_wqe *cqp_wqe; int ret; @@ -3294,14 +3258,6 @@ void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp, nes_debug(NES_DBG_QP, "Flush SQ QP WQEs completed, ret=%u," " CQP Major:Minor codes = 0x%04X:0x%04X\n", ret, cqp_request->major_code, cqp_request->minor_code); - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); } } 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 diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index d617da9bd351..464a98a6e119 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -55,7 +55,6 @@ static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev); * nes_alloc_mw */ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) { - unsigned long flags; struct nes_pd *nespd = to_nespd(ibpd); struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); struct nes_device *nesdev = nesvnic->nesdev; @@ -128,15 +127,7 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) { " CQP Major:Minor codes = 0x%04X:0x%04X.\n", stag, ret, cqp_request->major_code, cqp_request->minor_code); if ((!ret) || (cqp_request->major_code)) { - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); kfree(nesmr); nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); if (!ret) { @@ -144,17 +135,8 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) { } else { return ERR_PTR(-ENOMEM); } - } else { - 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); - } - } } + nes_put_cqp_request(nesdev, cqp_request); nesmr->ibmw.rkey = stag; nesmr->mode = IWNES_MEMREG_TYPE_MW; @@ -178,7 +160,6 @@ static int nes_dealloc_mw(struct ib_mw *ibmw) struct nes_hw_cqp_wqe *cqp_wqe; struct nes_cqp_request *cqp_request; int err = 0; - unsigned long flags; int ret; /* Deallocate the window with the adapter */ @@ -204,32 +185,12 @@ static int nes_dealloc_mw(struct ib_mw *ibmw) nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u," " CQP Major:Minor codes = 0x%04X:0x%04X.\n", ret, cqp_request->major_code, cqp_request->minor_code); - if ((!ret) || (cqp_request->major_code)) { - 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); - } - } - if (!ret) { - err = -ETIME; - } else { - err = -EIO; - } - } else { - 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); - } - } - } + if (!ret) + err = -ETIME; + else if (cqp_request->major_code) + err = -EIO; + + nes_put_cqp_request(nesdev, cqp_request); nes_free_resource(nesadapter, nesadapter->allocated_mrs, (ibmw->rkey & 0x0fffff00) >> 8); @@ -526,29 +487,11 @@ static struct ib_fmr *nes_alloc_fmr(struct ib_pd *ibpd, stag, ret, cqp_request->major_code, cqp_request->minor_code); if ((!ret) || (cqp_request->major_code)) { - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); ret = (!ret) ? -ETIME : -EIO; goto failed_leaf_vpbl_pages_alloc; - } else { - 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); - } - } } - + nes_put_cqp_request(nesdev, cqp_request); nesfmr->nesmr.ibfmr.lkey = stag; nesfmr->nesmr.ibfmr.rkey = stag; nesfmr->attr = *ibfmr_attr; @@ -1487,15 +1430,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail, cqp_request->major_code, cqp_request->minor_code); if ((!ret) || (cqp_request->major_code)) { - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); nes_free_qp_mem(nesdev, nesqp,virt_wqs); kfree(nesqp->allocated_buffer); @@ -1504,18 +1439,10 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, } else { return ERR_PTR(-EIO); } - } else { - 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); - } - } } + nes_put_cqp_request(nesdev, cqp_request); + if (ibpd->uobject) { uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index; uresp.actual_sq_size = sq_size; @@ -1827,32 +1754,15 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n", nescq->hw_cq.cq_number, ret); if ((!ret) || (cqp_request->major_code)) { - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-EIO); - } else { - 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); - } - } } + nes_put_cqp_request(nesdev, cqp_request); if (context) { /* free the nespbl */ @@ -1942,37 +1852,18 @@ static int nes_destroy_cq(struct ib_cq *ib_cq) " CQP Major:Minor codes = 0x%04X:0x%04X.\n", nescq->hw_cq.cq_number, ret, cqp_request->major_code, cqp_request->minor_code); - if ((!ret) || (cqp_request->major_code)) { - 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); - } - } - if (!ret) { - nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n", + if (!ret) { + nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n", nescq->hw_cq.cq_number); - ret = -ETIME; - } else { - nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n", + ret = -ETIME; + } else if (cqp_request->major_code) { + nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n", nescq->hw_cq.cq_number); - ret = -EIO; - } + ret = -EIO; } else { ret = 0; - 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); - } - } } + nes_put_cqp_request(nesdev, cqp_request); if (nescq->cq_mem_size) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, @@ -2105,15 +1996,8 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, " CQP Major:Minor codes = 0x%04X:0x%04X.\n", stag, ret, cqp_request->major_code, cqp_request->minor_code); major_code = cqp_request->major_code; - 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); - } - } + nes_put_cqp_request(nesdev, cqp_request); + if (!ret) return -ETIME; else if (major_code) @@ -2771,15 +2655,9 @@ static int nes_dereg_mr(struct ib_mr *ib_mr) major_code = cqp_request->major_code; minor_code = cqp_request->minor_code; - 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); - } - } + + nes_put_cqp_request(nesdev, cqp_request); + if (!ret) { nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag," " ib_mr=%p, rkey = 0x%08X\n", @@ -2904,7 +2782,6 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp, /* struct iw_cm_id *cm_id = nesqp->cm_id; */ /* struct iw_cm_event cm_event; */ struct nes_cqp_request *cqp_request; - unsigned long flags; int ret; u16 major_code; @@ -2950,15 +2827,9 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp, nesqp->hwqp.qp_id, cqp_request->major_code, cqp_request->minor_code, next_iwarp_state); } - 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); - } - } + + nes_put_cqp_request(nesdev, cqp_request); + if (!ret) return -ETIME; else if (major_code) |