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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-08 00:33:07 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-08 00:33:07 +0300
commitab9f2faf8f40604551336e5b0a18e0910a57b92c (patch)
tree9068c73acf24452762d6e2b096df19e29436183e /net/sunrpc
parent75021d28594d9b6fb4d05bbc41f77948a0db0e02 (diff)
parentdb7489e07669073970358b6cacf6a9dd8dc9275e (diff)
downloadlinux-ab9f2faf8f40604551336e5b0a18e0910a57b92c.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford: "This is my initial round of 4.4 merge window patches. There are a few other things I wish to get in for 4.4 that aren't in this pull, as this represents what has gone through merge/build/run testing and not what is the last few items for which testing is not yet complete. - "Checksum offload support in user space" enablement - Misc cxgb4 fixes, add T6 support - Misc usnic fixes - 32 bit build warning fixes - Misc ocrdma fixes - Multicast loopback prevention extension - Extend the GID cache to store and return attributes of GIDs - Misc iSER updates - iSER clustering update - Network NameSpace support for rdma CM - Work Request cleanup series - New Memory Registration API" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (76 commits) IB/core, cma: Make __attribute_const__ declarations sparse-friendly IB/core: Remove old fast registration API IB/ipath: Remove fast registration from the code IB/hfi1: Remove fast registration from the code RDMA/nes: Remove old FRWR API IB/qib: Remove old FRWR API iw_cxgb4: Remove old FRWR API RDMA/cxgb3: Remove old FRWR API RDMA/ocrdma: Remove old FRWR API IB/mlx4: Remove old FRWR API support IB/mlx5: Remove old FRWR API support IB/srp: Dont allocate a page vector when using fast_reg IB/srp: Remove srp_finish_mapping IB/srp: Convert to new registration API IB/srp: Split srp_map_sg RDS/IW: Convert to new memory registration API svcrdma: Port to new memory registration API xprtrdma: Port to new memory registration API iser-target: Port to new memory registration API IB/iser: Port to new fast registration API ...
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/frwr_ops.c119
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_recvfrom.c123
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_sendto.c18
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_transport.c38
-rw-r--r--net/sunrpc/xprtrdma/verbs.c3
-rw-r--r--net/sunrpc/xprtrdma/xprt_rdma.h3
6 files changed, 159 insertions, 145 deletions
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 5318951b3b53..a1434447b0d6 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -151,9 +151,13 @@ __frwr_init(struct rpcrdma_mw *r, struct ib_pd *pd, struct ib_device *device,
f->fr_mr = ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG, depth);
if (IS_ERR(f->fr_mr))
goto out_mr_err;
- f->fr_pgl = ib_alloc_fast_reg_page_list(device, depth);
- if (IS_ERR(f->fr_pgl))
+
+ f->sg = kcalloc(depth, sizeof(*f->sg), GFP_KERNEL);
+ if (!f->sg)
goto out_list_err;
+
+ sg_init_table(f->sg, depth);
+
return 0;
out_mr_err:
@@ -163,9 +167,9 @@ out_mr_err:
return rc;
out_list_err:
- rc = PTR_ERR(f->fr_pgl);
- dprintk("RPC: %s: ib_alloc_fast_reg_page_list status %i\n",
- __func__, rc);
+ rc = -ENOMEM;
+ dprintk("RPC: %s: sg allocation failure\n",
+ __func__);
ib_dereg_mr(f->fr_mr);
return rc;
}
@@ -179,7 +183,7 @@ __frwr_release(struct rpcrdma_mw *r)
if (rc)
dprintk("RPC: %s: ib_dereg_mr status %i\n",
__func__, rc);
- ib_free_fast_reg_page_list(r->r.frmr.fr_pgl);
+ kfree(r->r.frmr.sg);
}
static int
@@ -312,13 +316,10 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
struct rpcrdma_mw *mw;
struct rpcrdma_frmr *frmr;
struct ib_mr *mr;
- struct ib_send_wr fastreg_wr, *bad_wr;
+ struct ib_reg_wr reg_wr;
+ struct ib_send_wr *bad_wr;
+ int rc, i, n, dma_nents;
u8 key;
- int len, pageoff;
- int i, rc;
- int seg_len;
- u64 pa;
- int page_no;
mw = seg1->rl_mw;
seg1->rl_mw = NULL;
@@ -331,64 +332,80 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
} while (mw->r.frmr.fr_state != FRMR_IS_INVALID);
frmr = &mw->r.frmr;
frmr->fr_state = FRMR_IS_VALID;
+ mr = frmr->fr_mr;
- pageoff = offset_in_page(seg1->mr_offset);
- seg1->mr_offset -= pageoff; /* start of page */
- seg1->mr_len += pageoff;
- len = -pageoff;
if (nsegs > ia->ri_max_frmr_depth)
nsegs = ia->ri_max_frmr_depth;
- for (page_no = i = 0; i < nsegs;) {
- rpcrdma_map_one(device, seg, direction);
- pa = seg->mr_dma;
- for (seg_len = seg->mr_len; seg_len > 0; seg_len -= PAGE_SIZE) {
- frmr->fr_pgl->page_list[page_no++] = pa;
- pa += PAGE_SIZE;
- }
- len += seg->mr_len;
+ for (i = 0; i < nsegs;) {
+ if (seg->mr_page)
+ sg_set_page(&frmr->sg[i],
+ seg->mr_page,
+ seg->mr_len,
+ offset_in_page(seg->mr_offset));
+ else
+ sg_set_buf(&frmr->sg[i], seg->mr_offset,
+ seg->mr_len);
+
++seg;
++i;
+
/* Check for holes */
if ((i < nsegs && offset_in_page(seg->mr_offset)) ||
offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
break;
}
- dprintk("RPC: %s: Using frmr %p to map %d segments (%d bytes)\n",
- __func__, mw, i, len);
-
- memset(&fastreg_wr, 0, sizeof(fastreg_wr));
- fastreg_wr.wr_id = (unsigned long)(void *)mw;
- fastreg_wr.opcode = IB_WR_FAST_REG_MR;
- fastreg_wr.wr.fast_reg.iova_start = seg1->mr_dma + pageoff;
- fastreg_wr.wr.fast_reg.page_list = frmr->fr_pgl;
- fastreg_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
- fastreg_wr.wr.fast_reg.page_list_len = page_no;
- fastreg_wr.wr.fast_reg.length = len;
- fastreg_wr.wr.fast_reg.access_flags = writing ?
- IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
- IB_ACCESS_REMOTE_READ;
- mr = frmr->fr_mr;
+ frmr->sg_nents = i;
+
+ dma_nents = ib_dma_map_sg(device, frmr->sg, frmr->sg_nents, direction);
+ if (!dma_nents) {
+ pr_err("RPC: %s: failed to dma map sg %p sg_nents %u\n",
+ __func__, frmr->sg, frmr->sg_nents);
+ return -ENOMEM;
+ }
+
+ n = ib_map_mr_sg(mr, frmr->sg, frmr->sg_nents, PAGE_SIZE);
+ if (unlikely(n != frmr->sg_nents)) {
+ pr_err("RPC: %s: failed to map mr %p (%u/%u)\n",
+ __func__, frmr->fr_mr, n, frmr->sg_nents);
+ rc = n < 0 ? n : -EINVAL;
+ goto out_senderr;
+ }
+
+ dprintk("RPC: %s: Using frmr %p to map %u segments (%u bytes)\n",
+ __func__, mw, frmr->sg_nents, mr->length);
+
key = (u8)(mr->rkey & 0x000000FF);
ib_update_fast_reg_key(mr, ++key);
- fastreg_wr.wr.fast_reg.rkey = mr->rkey;
+
+ reg_wr.wr.next = NULL;
+ reg_wr.wr.opcode = IB_WR_REG_MR;
+ reg_wr.wr.wr_id = (uintptr_t)mw;
+ reg_wr.wr.num_sge = 0;
+ reg_wr.wr.send_flags = 0;
+ reg_wr.mr = mr;
+ reg_wr.key = mr->rkey;
+ reg_wr.access = writing ?
+ IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
+ IB_ACCESS_REMOTE_READ;
DECR_CQCOUNT(&r_xprt->rx_ep);
- rc = ib_post_send(ia->ri_id->qp, &fastreg_wr, &bad_wr);
+ rc = ib_post_send(ia->ri_id->qp, &reg_wr.wr, &bad_wr);
if (rc)
goto out_senderr;
+ seg1->mr_dir = direction;
seg1->rl_mw = mw;
seg1->mr_rkey = mr->rkey;
- seg1->mr_base = seg1->mr_dma + pageoff;
- seg1->mr_nsegs = i;
- seg1->mr_len = len;
- return i;
+ seg1->mr_base = mr->iova;
+ seg1->mr_nsegs = frmr->sg_nents;
+ seg1->mr_len = mr->length;
+
+ return frmr->sg_nents;
out_senderr:
dprintk("RPC: %s: ib_post_send status %i\n", __func__, rc);
- while (i--)
- rpcrdma_unmap_one(device, --seg);
+ ib_dma_unmap_sg(device, frmr->sg, dma_nents, direction);
__frwr_queue_recovery(mw);
return rc;
}
@@ -402,22 +419,22 @@ frwr_op_unmap(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg)
struct rpcrdma_mr_seg *seg1 = seg;
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
struct rpcrdma_mw *mw = seg1->rl_mw;
+ struct rpcrdma_frmr *frmr = &mw->r.frmr;
struct ib_send_wr invalidate_wr, *bad_wr;
int rc, nsegs = seg->mr_nsegs;
dprintk("RPC: %s: FRMR %p\n", __func__, mw);
seg1->rl_mw = NULL;
- mw->r.frmr.fr_state = FRMR_IS_INVALID;
+ frmr->fr_state = FRMR_IS_INVALID;
memset(&invalidate_wr, 0, sizeof(invalidate_wr));
invalidate_wr.wr_id = (unsigned long)(void *)mw;
invalidate_wr.opcode = IB_WR_LOCAL_INV;
- invalidate_wr.ex.invalidate_rkey = mw->r.frmr.fr_mr->rkey;
+ invalidate_wr.ex.invalidate_rkey = frmr->fr_mr->rkey;
DECR_CQCOUNT(&r_xprt->rx_ep);
- while (seg1->mr_nsegs--)
- rpcrdma_unmap_one(ia->ri_device, seg++);
+ ib_dma_unmap_sg(ia->ri_device, frmr->sg, frmr->sg_nents, seg1->mr_dir);
read_lock(&ia->ri_qplock);
rc = ib_post_send(ia->ri_id->qp, &invalidate_wr, &bad_wr);
read_unlock(&ia->ri_qplock);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index f0c3ff67ca98..ff4f01e527ec 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -126,7 +126,7 @@ int rdma_read_chunk_lcl(struct svcxprt_rdma *xprt,
u64 rs_offset,
bool last)
{
- struct ib_send_wr read_wr;
+ struct ib_rdma_wr read_wr;
int pages_needed = PAGE_ALIGN(*page_offset + rs_length) >> PAGE_SHIFT;
struct svc_rdma_op_ctxt *ctxt = svc_rdma_get_context(xprt);
int ret, read, pno;
@@ -180,16 +180,16 @@ int rdma_read_chunk_lcl(struct svcxprt_rdma *xprt,
clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
memset(&read_wr, 0, sizeof(read_wr));
- read_wr.wr_id = (unsigned long)ctxt;
- read_wr.opcode = IB_WR_RDMA_READ;
- ctxt->wr_op = read_wr.opcode;
- read_wr.send_flags = IB_SEND_SIGNALED;
- read_wr.wr.rdma.rkey = rs_handle;
- read_wr.wr.rdma.remote_addr = rs_offset;
- read_wr.sg_list = ctxt->sge;
- read_wr.num_sge = pages_needed;
-
- ret = svc_rdma_send(xprt, &read_wr);
+ read_wr.wr.wr_id = (unsigned long)ctxt;
+ read_wr.wr.opcode = IB_WR_RDMA_READ;
+ ctxt->wr_op = read_wr.wr.opcode;
+ read_wr.wr.send_flags = IB_SEND_SIGNALED;
+ read_wr.rkey = rs_handle;
+ read_wr.remote_addr = rs_offset;
+ read_wr.wr.sg_list = ctxt->sge;
+ read_wr.wr.num_sge = pages_needed;
+
+ ret = svc_rdma_send(xprt, &read_wr.wr);
if (ret) {
pr_err("svcrdma: Error %d posting RDMA_READ\n", ret);
set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
@@ -219,14 +219,14 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
u64 rs_offset,
bool last)
{
- struct ib_send_wr read_wr;
+ struct ib_rdma_wr read_wr;
struct ib_send_wr inv_wr;
- struct ib_send_wr fastreg_wr;
+ struct ib_reg_wr reg_wr;
u8 key;
- int pages_needed = PAGE_ALIGN(*page_offset + rs_length) >> PAGE_SHIFT;
+ int nents = PAGE_ALIGN(*page_offset + rs_length) >> PAGE_SHIFT;
struct svc_rdma_op_ctxt *ctxt = svc_rdma_get_context(xprt);
struct svc_rdma_fastreg_mr *frmr = svc_rdma_get_frmr(xprt);
- int ret, read, pno;
+ int ret, read, pno, dma_nents, n;
u32 pg_off = *page_offset;
u32 pg_no = *page_no;
@@ -235,17 +235,14 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
ctxt->direction = DMA_FROM_DEVICE;
ctxt->frmr = frmr;
- pages_needed = min_t(int, pages_needed, xprt->sc_frmr_pg_list_len);
- read = min_t(int, (pages_needed << PAGE_SHIFT) - *page_offset,
- rs_length);
+ nents = min_t(unsigned int, nents, xprt->sc_frmr_pg_list_len);
+ read = min_t(int, (nents << PAGE_SHIFT) - *page_offset, rs_length);
- frmr->kva = page_address(rqstp->rq_arg.pages[pg_no]);
frmr->direction = DMA_FROM_DEVICE;
frmr->access_flags = (IB_ACCESS_LOCAL_WRITE|IB_ACCESS_REMOTE_WRITE);
- frmr->map_len = pages_needed << PAGE_SHIFT;
- frmr->page_list_len = pages_needed;
+ frmr->sg_nents = nents;
- for (pno = 0; pno < pages_needed; pno++) {
+ for (pno = 0; pno < nents; pno++) {
int len = min_t(int, rs_length, PAGE_SIZE - pg_off);
head->arg.pages[pg_no] = rqstp->rq_arg.pages[pg_no];
@@ -253,17 +250,12 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
head->arg.len += len;
if (!pg_off)
head->count++;
+
+ sg_set_page(&frmr->sg[pno], rqstp->rq_arg.pages[pg_no],
+ len, pg_off);
+
rqstp->rq_respages = &rqstp->rq_arg.pages[pg_no+1];
rqstp->rq_next_page = rqstp->rq_respages + 1;
- frmr->page_list->page_list[pno] =
- ib_dma_map_page(xprt->sc_cm_id->device,
- head->arg.pages[pg_no], 0,
- PAGE_SIZE, DMA_FROM_DEVICE);
- ret = ib_dma_mapping_error(xprt->sc_cm_id->device,
- frmr->page_list->page_list[pno]);
- if (ret)
- goto err;
- atomic_inc(&xprt->sc_dma_used);
/* adjust offset and wrap to next page if needed */
pg_off += len;
@@ -279,43 +271,57 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
else
clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
+ dma_nents = ib_dma_map_sg(xprt->sc_cm_id->device,
+ frmr->sg, frmr->sg_nents,
+ frmr->direction);
+ if (!dma_nents) {
+ pr_err("svcrdma: failed to dma map sg %p\n",
+ frmr->sg);
+ return -ENOMEM;
+ }
+ atomic_inc(&xprt->sc_dma_used);
+
+ n = ib_map_mr_sg(frmr->mr, frmr->sg, frmr->sg_nents, PAGE_SIZE);
+ if (unlikely(n != frmr->sg_nents)) {
+ pr_err("svcrdma: failed to map mr %p (%d/%d elements)\n",
+ frmr->mr, n, frmr->sg_nents);
+ return n < 0 ? n : -EINVAL;
+ }
+
/* Bump the key */
key = (u8)(frmr->mr->lkey & 0x000000FF);
ib_update_fast_reg_key(frmr->mr, ++key);
- ctxt->sge[0].addr = (unsigned long)frmr->kva + *page_offset;
+ ctxt->sge[0].addr = frmr->mr->iova;
ctxt->sge[0].lkey = frmr->mr->lkey;
- ctxt->sge[0].length = read;
+ ctxt->sge[0].length = frmr->mr->length;
ctxt->count = 1;
ctxt->read_hdr = head;
- /* Prepare FASTREG WR */
- memset(&fastreg_wr, 0, sizeof(fastreg_wr));
- fastreg_wr.opcode = IB_WR_FAST_REG_MR;
- fastreg_wr.send_flags = IB_SEND_SIGNALED;
- fastreg_wr.wr.fast_reg.iova_start = (unsigned long)frmr->kva;
- fastreg_wr.wr.fast_reg.page_list = frmr->page_list;
- fastreg_wr.wr.fast_reg.page_list_len = frmr->page_list_len;
- fastreg_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
- fastreg_wr.wr.fast_reg.length = frmr->map_len;
- fastreg_wr.wr.fast_reg.access_flags = frmr->access_flags;
- fastreg_wr.wr.fast_reg.rkey = frmr->mr->lkey;
- fastreg_wr.next = &read_wr;
+ /* Prepare REG WR */
+ reg_wr.wr.opcode = IB_WR_REG_MR;
+ reg_wr.wr.wr_id = 0;
+ reg_wr.wr.send_flags = IB_SEND_SIGNALED;
+ reg_wr.wr.num_sge = 0;
+ reg_wr.mr = frmr->mr;
+ reg_wr.key = frmr->mr->lkey;
+ reg_wr.access = frmr->access_flags;
+ reg_wr.wr.next = &read_wr.wr;
/* Prepare RDMA_READ */
memset(&read_wr, 0, sizeof(read_wr));
- read_wr.send_flags = IB_SEND_SIGNALED;
- read_wr.wr.rdma.rkey = rs_handle;
- read_wr.wr.rdma.remote_addr = rs_offset;
- read_wr.sg_list = ctxt->sge;
- read_wr.num_sge = 1;
+ read_wr.wr.send_flags = IB_SEND_SIGNALED;
+ read_wr.rkey = rs_handle;
+ read_wr.remote_addr = rs_offset;
+ read_wr.wr.sg_list = ctxt->sge;
+ read_wr.wr.num_sge = 1;
if (xprt->sc_dev_caps & SVCRDMA_DEVCAP_READ_W_INV) {
- read_wr.opcode = IB_WR_RDMA_READ_WITH_INV;
- read_wr.wr_id = (unsigned long)ctxt;
- read_wr.ex.invalidate_rkey = ctxt->frmr->mr->lkey;
+ read_wr.wr.opcode = IB_WR_RDMA_READ_WITH_INV;
+ read_wr.wr.wr_id = (unsigned long)ctxt;
+ read_wr.wr.ex.invalidate_rkey = ctxt->frmr->mr->lkey;
} else {
- read_wr.opcode = IB_WR_RDMA_READ;
- read_wr.next = &inv_wr;
+ read_wr.wr.opcode = IB_WR_RDMA_READ;
+ read_wr.wr.next = &inv_wr;
/* Prepare invalidate */
memset(&inv_wr, 0, sizeof(inv_wr));
inv_wr.wr_id = (unsigned long)ctxt;
@@ -323,10 +329,10 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
inv_wr.send_flags = IB_SEND_SIGNALED | IB_SEND_FENCE;
inv_wr.ex.invalidate_rkey = frmr->mr->lkey;
}
- ctxt->wr_op = read_wr.opcode;
+ ctxt->wr_op = read_wr.wr.opcode;
/* Post the chain */
- ret = svc_rdma_send(xprt, &fastreg_wr);
+ ret = svc_rdma_send(xprt, &reg_wr.wr);
if (ret) {
pr_err("svcrdma: Error %d posting RDMA_READ\n", ret);
set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
@@ -340,7 +346,8 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
atomic_inc(&rdma_stat_read);
return ret;
err:
- svc_rdma_unmap_dma(ctxt);
+ ib_dma_unmap_sg(xprt->sc_cm_id->device,
+ frmr->sg, frmr->sg_nents, frmr->direction);
svc_rdma_put_context(ctxt, 0);
svc_rdma_put_frmr(xprt, frmr);
return ret;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 1dfae8317065..969a1ab75fc3 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -217,7 +217,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
u32 xdr_off, int write_len,
struct svc_rdma_req_map *vec)
{
- struct ib_send_wr write_wr;
+ struct ib_rdma_wr write_wr;
struct ib_sge *sge;
int xdr_sge_no;
int sge_no;
@@ -282,17 +282,17 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
/* Prepare WRITE WR */
memset(&write_wr, 0, sizeof write_wr);
ctxt->wr_op = IB_WR_RDMA_WRITE;
- write_wr.wr_id = (unsigned long)ctxt;
- write_wr.sg_list = &sge[0];
- write_wr.num_sge = sge_no;
- write_wr.opcode = IB_WR_RDMA_WRITE;
- write_wr.send_flags = IB_SEND_SIGNALED;
- write_wr.wr.rdma.rkey = rmr;
- write_wr.wr.rdma.remote_addr = to;
+ write_wr.wr.wr_id = (unsigned long)ctxt;
+ write_wr.wr.sg_list = &sge[0];
+ write_wr.wr.num_sge = sge_no;
+ write_wr.wr.opcode = IB_WR_RDMA_WRITE;
+ write_wr.wr.send_flags = IB_SEND_SIGNALED;
+ write_wr.rkey = rmr;
+ write_wr.remote_addr = to;
/* Post It */
atomic_inc(&rdma_stat_write);
- if (svc_rdma_send(xprt, &write_wr))
+ if (svc_rdma_send(xprt, &write_wr.wr))
goto err;
return write_len - bc;
err:
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index fcc3eb80c265..a266e870d870 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -692,8 +692,8 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
if (!cma_xprt)
return ERR_PTR(-ENOMEM);
- listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP,
- IB_QPT_RC);
+ listen_id = rdma_create_id(&init_net, rdma_listen_handler, cma_xprt,
+ RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(listen_id)) {
ret = PTR_ERR(listen_id);
dprintk("svcrdma: rdma_create_id failed = %d\n", ret);
@@ -732,7 +732,7 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
static struct svc_rdma_fastreg_mr *rdma_alloc_frmr(struct svcxprt_rdma *xprt)
{
struct ib_mr *mr;
- struct ib_fast_reg_page_list *pl;
+ struct scatterlist *sg;
struct svc_rdma_fastreg_mr *frmr;
u32 num_sg;
@@ -745,13 +745,14 @@ static struct svc_rdma_fastreg_mr *rdma_alloc_frmr(struct svcxprt_rdma *xprt)
if (IS_ERR(mr))
goto err_free_frmr;
- pl = ib_alloc_fast_reg_page_list(xprt->sc_cm_id->device,
- num_sg);
- if (IS_ERR(pl))
+ sg = kcalloc(RPCSVC_MAXPAGES, sizeof(*sg), GFP_KERNEL);
+ if (!sg)
goto err_free_mr;
+ sg_init_table(sg, RPCSVC_MAXPAGES);
+
frmr->mr = mr;
- frmr->page_list = pl;
+ frmr->sg = sg;
INIT_LIST_HEAD(&frmr->frmr_list);
return frmr;
@@ -771,8 +772,8 @@ static void rdma_dealloc_frmr_q(struct svcxprt_rdma *xprt)
frmr = list_entry(xprt->sc_frmr_q.next,
struct svc_rdma_fastreg_mr, frmr_list);
list_del_init(&frmr->frmr_list);
+ kfree(frmr->sg);
ib_dereg_mr(frmr->mr);
- ib_free_fast_reg_page_list(frmr->page_list);
kfree(frmr);
}
}
@@ -786,8 +787,7 @@ struct svc_rdma_fastreg_mr *svc_rdma_get_frmr(struct svcxprt_rdma *rdma)
frmr = list_entry(rdma->sc_frmr_q.next,
struct svc_rdma_fastreg_mr, frmr_list);
list_del_init(&frmr->frmr_list);
- frmr->map_len = 0;
- frmr->page_list_len = 0;
+ frmr->sg_nents = 0;
}
spin_unlock_bh(&rdma->sc_frmr_q_lock);
if (frmr)
@@ -796,25 +796,13 @@ struct svc_rdma_fastreg_mr *svc_rdma_get_frmr(struct svcxprt_rdma *rdma)
return rdma_alloc_frmr(rdma);
}
-static void frmr_unmap_dma(struct svcxprt_rdma *xprt,
- struct svc_rdma_fastreg_mr *frmr)
-{
- int page_no;
- for (page_no = 0; page_no < frmr->page_list_len; page_no++) {
- dma_addr_t addr = frmr->page_list->page_list[page_no];
- if (ib_dma_mapping_error(frmr->mr->device, addr))
- continue;
- atomic_dec(&xprt->sc_dma_used);
- ib_dma_unmap_page(frmr->mr->device, addr, PAGE_SIZE,
- frmr->direction);
- }
-}
-
void svc_rdma_put_frmr(struct svcxprt_rdma *rdma,
struct svc_rdma_fastreg_mr *frmr)
{
if (frmr) {
- frmr_unmap_dma(rdma, frmr);
+ ib_dma_unmap_sg(rdma->sc_cm_id->device,
+ frmr->sg, frmr->sg_nents, frmr->direction);
+ atomic_dec(&rdma->sc_dma_used);
spin_lock_bh(&rdma->sc_frmr_q_lock);
WARN_ON_ONCE(!list_empty(&frmr->frmr_list));
list_add(&frmr->frmr_list, &rdma->sc_frmr_q);
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 5502d4dade74..f63369bd01c5 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -432,7 +432,8 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt,
init_completion(&ia->ri_done);
- id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP, IB_QPT_RC);
+ id = rdma_create_id(&init_net, rpcrdma_conn_upcall, xprt, RDMA_PS_TCP,
+ IB_QPT_RC);
if (IS_ERR(id)) {
rc = PTR_ERR(id);
dprintk("RPC: %s: rdma_create_id() failed %i\n",
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index c09414e6f91b..c82abf44e39d 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -193,7 +193,8 @@ enum rpcrdma_frmr_state {
};
struct rpcrdma_frmr {
- struct ib_fast_reg_page_list *fr_pgl;
+ struct scatterlist *sg;
+ int sg_nents;
struct ib_mr *fr_mr;
enum rpcrdma_frmr_state fr_state;
struct work_struct fr_work;