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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/infiniband/hw/nes/nes_verbs.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_verbs.c')
-rw-r--r--drivers/infiniband/hw/nes/nes_verbs.c216
1 files changed, 32 insertions, 184 deletions
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 137880a19..8c4daf7f2 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -206,80 +206,6 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
}
-/**
- * nes_bind_mw
- */
-static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw,
- struct ib_mw_bind *ibmw_bind)
-{
- u64 u64temp;
- struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
- struct nes_device *nesdev = nesvnic->nesdev;
- /* struct nes_mr *nesmr = to_nesmw(ibmw); */
- struct nes_qp *nesqp = to_nesqp(ibqp);
- struct nes_hw_qp_wqe *wqe;
- unsigned long flags = 0;
- u32 head;
- u32 wqe_misc = 0;
- u32 qsize;
-
- if (nesqp->ibqp_state > IB_QPS_RTS)
- return -EINVAL;
-
- spin_lock_irqsave(&nesqp->lock, flags);
-
- head = nesqp->hwqp.sq_head;
- qsize = nesqp->hwqp.sq_tail;
-
- /* Check for SQ overflow */
- if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) {
- spin_unlock_irqrestore(&nesqp->lock, flags);
- return -ENOMEM;
- }
-
- wqe = &nesqp->hwqp.sq_vbase[head];
- /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */
- nes_fill_init_qp_wqe(wqe, nesqp, head);
- u64temp = ibmw_bind->wr_id;
- set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp);
- wqe_misc = NES_IWARP_SQ_OP_BIND;
-
- wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE;
-
- if (ibmw_bind->send_flags & IB_SEND_SIGNALED)
- wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL;
-
- if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_WRITE)
- wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE;
- if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_READ)
- wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ;
-
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc);
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX,
- ibmw_bind->bind_info.mr->lkey);
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey);
- set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX,
- ibmw_bind->bind_info.length);
- wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0;
- u64temp = (u64)ibmw_bind->bind_info.addr;
- set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp);
-
- head++;
- if (head >= qsize)
- head = 0;
-
- nesqp->hwqp.sq_head = head;
- barrier();
-
- nes_write32(nesdev->regs+NES_WQE_ALLOC,
- (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id);
-
- spin_unlock_irqrestore(&nesqp->lock, flags);
-
- return 0;
-}
-
-
/*
* nes_alloc_fast_mr
*/
@@ -2074,9 +2000,8 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
/**
* nes_reg_phys_mr
*/
-static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
- struct ib_phys_buf *buffer_list, int num_phys_buf, int acc,
- u64 * iova_start)
+struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,
+ int acc, u64 *iova_start)
{
u64 region_length;
struct nes_pd *nespd = to_nespd(ib_pd);
@@ -2088,13 +2013,10 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
struct nes_vpbl vpbl;
struct nes_root_vpbl root_vpbl;
u32 stag;
- u32 i;
unsigned long mask;
u32 stag_index = 0;
u32 next_stag_index = 0;
u32 driver_key = 0;
- u32 root_pbl_index = 0;
- u32 cur_pbl_index = 0;
int err = 0;
int ret = 0;
u16 pbl_count = 0;
@@ -2113,11 +2035,8 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
next_stag_index >>= 8;
next_stag_index %= nesadapter->max_mr;
- if (num_phys_buf > (1024*512)) {
- return ERR_PTR(-E2BIG);
- }
- if ((buffer_list[0].addr ^ *iova_start) & ~PAGE_MASK)
+ if ((addr ^ *iova_start) & ~PAGE_MASK)
return ERR_PTR(-EINVAL);
err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr,
@@ -2132,84 +2051,33 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
return ERR_PTR(-ENOMEM);
}
- for (i = 0; i < num_phys_buf; i++) {
+ /* Allocate a 4K buffer for the PBL */
+ vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096,
+ &vpbl.pbl_pbase);
+ nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n",
+ vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase);
+ if (!vpbl.pbl_vbase) {
+ nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
+ ibmr = ERR_PTR(-ENOMEM);
+ kfree(nesmr);
+ goto reg_phys_err;
+ }
- if ((i & 0x01FF) == 0) {
- if (root_pbl_index == 1) {
- /* Allocate the root PBL */
- root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 8192,
- &root_vpbl.pbl_pbase);
- nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n",
- root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase);
- if (!root_vpbl.pbl_vbase) {
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase,
- vpbl.pbl_pbase);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- kfree(nesmr);
- return ERR_PTR(-ENOMEM);
- }
- root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, GFP_KERNEL);
- if (!root_vpbl.leaf_vpbl) {
- pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase,
- root_vpbl.pbl_pbase);
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase,
- vpbl.pbl_pbase);
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- kfree(nesmr);
- return ERR_PTR(-ENOMEM);
- }
- root_vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)vpbl.pbl_pbase);
- root_vpbl.pbl_vbase[0].pa_high =
- cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32)));
- root_vpbl.leaf_vpbl[0] = vpbl;
- }
- /* Allocate a 4K buffer for the PBL */
- vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096,
- &vpbl.pbl_pbase);
- nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n",
- vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase);
- if (!vpbl.pbl_vbase) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- ibmr = ERR_PTR(-ENOMEM);
- kfree(nesmr);
- goto reg_phys_err;
- }
- /* Fill in the root table */
- if (1 <= root_pbl_index) {
- root_vpbl.pbl_vbase[root_pbl_index].pa_low =
- cpu_to_le32((u32)vpbl.pbl_pbase);
- root_vpbl.pbl_vbase[root_pbl_index].pa_high =
- cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32)));
- root_vpbl.leaf_vpbl[root_pbl_index] = vpbl;
- }
- root_pbl_index++;
- cur_pbl_index = 0;
- }
- mask = !buffer_list[i].size;
- if (i != 0)
- mask |= buffer_list[i].addr;
- if (i != num_phys_buf - 1)
- mask |= buffer_list[i].addr + buffer_list[i].size;
-
- if (mask & ~PAGE_MASK) {
- nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
- nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n");
- ibmr = ERR_PTR(-EINVAL);
- kfree(nesmr);
- goto reg_phys_err;
- }
+ mask = !size;
- region_length += buffer_list[i].size;
- if ((i != 0) && (single_page)) {
- if ((buffer_list[i-1].addr+PAGE_SIZE) != buffer_list[i].addr)
- single_page = 0;
- }
- vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr & PAGE_MASK);
- vpbl.pbl_vbase[cur_pbl_index++].pa_high =
- cpu_to_le32((u32)((((u64)buffer_list[i].addr) >> 32)));
+ if (mask & ~PAGE_MASK) {
+ nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
+ nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n");
+ ibmr = ERR_PTR(-EINVAL);
+ kfree(nesmr);
+ goto reg_phys_err;
}
+ region_length += size;
+ vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)addr & PAGE_MASK);
+ vpbl.pbl_vbase[0].pa_high = cpu_to_le32((u32)((((u64)addr) >> 32)));
+
stag = stag_index << 8;
stag |= driver_key;
stag += (u32)stag_key;
@@ -2219,17 +2087,15 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index);
/* Make the leaf PBL the root if only one PBL */
- if (root_pbl_index == 1) {
- root_vpbl.pbl_pbase = vpbl.pbl_pbase;
- }
+ root_vpbl.pbl_pbase = vpbl.pbl_pbase;
if (single_page) {
pbl_count = 0;
} else {
- pbl_count = root_pbl_index;
+ pbl_count = 1;
}
ret = nes_reg_mr(nesdev, nespd, stag, region_length, &root_vpbl,
- buffer_list[0].addr, pbl_count, (u16)cur_pbl_index, acc, iova_start,
+ addr, pbl_count, 1, acc, iova_start,
&nesmr->pbls_used, &nesmr->pbl_4k);
if (ret == 0) {
@@ -2242,21 +2108,9 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
ibmr = ERR_PTR(-ENOMEM);
}
- reg_phys_err:
- /* free the resources */
- if (root_pbl_index == 1) {
- /* single PBL case */
- pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase);
- } else {
- for (i=0; i<root_pbl_index; i++) {
- pci_free_consistent(nesdev->pcidev, 4096, root_vpbl.leaf_vpbl[i].pbl_vbase,
- root_vpbl.leaf_vpbl[i].pbl_pbase);
- }
- kfree(root_vpbl.leaf_vpbl);
- pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase,
- root_vpbl.pbl_pbase);
- }
-
+reg_phys_err:
+ /* single PBL case */
+ pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase);
return ibmr;
}
@@ -2266,17 +2120,13 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
*/
static struct ib_mr *nes_get_dma_mr(struct ib_pd *pd, int acc)
{
- struct ib_phys_buf bl;
u64 kva = 0;
nes_debug(NES_DBG_MR, "\n");
- bl.size = (u64)0xffffffffffULL;
- bl.addr = 0;
- return nes_reg_phys_mr(pd, &bl, 1, acc, &kva);
+ return nes_reg_phys_mr(pd, 0, 0xffffffffffULL, acc, &kva);
}
-
/**
* nes_reg_user_mr
*/
@@ -3888,12 +3738,10 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
nesibdev->ibdev.destroy_cq = nes_destroy_cq;
nesibdev->ibdev.poll_cq = nes_poll_cq;
nesibdev->ibdev.get_dma_mr = nes_get_dma_mr;
- nesibdev->ibdev.reg_phys_mr = nes_reg_phys_mr;
nesibdev->ibdev.reg_user_mr = nes_reg_user_mr;
nesibdev->ibdev.dereg_mr = nes_dereg_mr;
nesibdev->ibdev.alloc_mw = nes_alloc_mw;
nesibdev->ibdev.dealloc_mw = nes_dealloc_mw;
- nesibdev->ibdev.bind_mw = nes_bind_mw;
nesibdev->ibdev.alloc_mr = nes_alloc_mr;
nesibdev->ibdev.map_mr_sg = nes_map_mr_sg;