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path: root/drivers/infiniband/sw/siw/siw_qp_tx.c
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Diffstat (limited to 'drivers/infiniband/sw/siw/siw_qp_tx.c')
-rw-r--r--drivers/infiniband/sw/siw/siw_qp_tx.c80
1 files changed, 37 insertions, 43 deletions
diff --git a/drivers/infiniband/sw/siw/siw_qp_tx.c b/drivers/infiniband/sw/siw/siw_qp_tx.c
index 43020d2040fc..438a2917a47c 100644
--- a/drivers/infiniband/sw/siw/siw_qp_tx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_tx.c
@@ -26,7 +26,7 @@ static struct page *siw_get_pblpage(struct siw_mem *mem, u64 addr, int *idx)
{
struct siw_pbl *pbl = mem->pbl;
u64 offset = addr - mem->va;
- u64 paddr = siw_pbl_get_buffer(pbl, offset, NULL, idx);
+ dma_addr_t paddr = siw_pbl_get_buffer(pbl, offset, NULL, idx);
if (paddr)
return virt_to_page(paddr);
@@ -37,7 +37,7 @@ static struct page *siw_get_pblpage(struct siw_mem *mem, u64 addr, int *idx)
/*
* Copy short payload at provided destination payload address
*/
-static int siw_try_1seg(struct siw_iwarp_tx *c_tx, u64 paddr)
+static int siw_try_1seg(struct siw_iwarp_tx *c_tx, void *paddr)
{
struct siw_wqe *wqe = &c_tx->wqe_active;
struct siw_sge *sge = &wqe->sqe.sge[0];
@@ -50,16 +50,16 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, u64 paddr)
return 0;
if (tx_flags(wqe) & SIW_WQE_INLINE) {
- memcpy((void *)paddr, &wqe->sqe.sge[1], bytes);
+ memcpy(paddr, &wqe->sqe.sge[1], bytes);
} else {
struct siw_mem *mem = wqe->mem[0];
if (!mem->mem_obj) {
/* Kernel client using kva */
- memcpy((void *)paddr, (void *)sge->laddr, bytes);
+ memcpy(paddr,
+ (const void *)(uintptr_t)sge->laddr, bytes);
} else if (c_tx->in_syscall) {
- if (copy_from_user((void *)paddr,
- (const void __user *)sge->laddr,
+ if (copy_from_user(paddr, u64_to_user_ptr(sge->laddr),
bytes))
return -EFAULT;
} else {
@@ -79,12 +79,12 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, u64 paddr)
buffer = kmap_atomic(p);
if (likely(PAGE_SIZE - off >= bytes)) {
- memcpy((void *)paddr, buffer + off, bytes);
+ memcpy(paddr, buffer + off, bytes);
kunmap_atomic(buffer);
} else {
unsigned long part = bytes - (PAGE_SIZE - off);
- memcpy((void *)paddr, buffer + off, part);
+ memcpy(paddr, buffer + off, part);
kunmap_atomic(buffer);
if (!mem->is_pbl)
@@ -98,7 +98,7 @@ static int siw_try_1seg(struct siw_iwarp_tx *c_tx, u64 paddr)
return -EFAULT;
buffer = kmap_atomic(p);
- memcpy((void *)(paddr + part), buffer,
+ memcpy(paddr + part, buffer,
bytes - part);
kunmap_atomic(buffer);
}
@@ -166,7 +166,7 @@ static int siw_qp_prepare_tx(struct siw_iwarp_tx *c_tx)
c_tx->ctrl_len = sizeof(struct iwarp_send);
crc = (char *)&c_tx->pkt.send_pkt.crc;
- data = siw_try_1seg(c_tx, (u64)crc);
+ data = siw_try_1seg(c_tx, crc);
break;
case SIW_OP_SEND_REMOTE_INV:
@@ -189,7 +189,7 @@ static int siw_qp_prepare_tx(struct siw_iwarp_tx *c_tx)
c_tx->ctrl_len = sizeof(struct iwarp_send_inv);
crc = (char *)&c_tx->pkt.send_pkt.crc;
- data = siw_try_1seg(c_tx, (u64)crc);
+ data = siw_try_1seg(c_tx, crc);
break;
case SIW_OP_WRITE:
@@ -201,7 +201,7 @@ static int siw_qp_prepare_tx(struct siw_iwarp_tx *c_tx)
c_tx->ctrl_len = sizeof(struct iwarp_rdma_write);
crc = (char *)&c_tx->pkt.write_pkt.crc;
- data = siw_try_1seg(c_tx, (u64)crc);
+ data = siw_try_1seg(c_tx, crc);
break;
case SIW_OP_READ_RESPONSE:
@@ -216,7 +216,7 @@ static int siw_qp_prepare_tx(struct siw_iwarp_tx *c_tx)
c_tx->ctrl_len = sizeof(struct iwarp_rdma_rresp);
crc = (char *)&c_tx->pkt.write_pkt.crc;
- data = siw_try_1seg(c_tx, (u64)crc);
+ data = siw_try_1seg(c_tx, crc);
break;
default:
@@ -398,15 +398,13 @@ static int siw_0copy_tx(struct socket *s, struct page **page,
#define MAX_TRAILER (MPA_CRC_SIZE + 4)
-static void siw_unmap_pages(struct page **pages, int hdr_len, int num_maps)
+static void siw_unmap_pages(struct page **pp, unsigned long kmap_mask)
{
- if (hdr_len) {
- ++pages;
- --num_maps;
- }
- while (num_maps-- > 0) {
- kunmap(*pages);
- pages++;
+ while (kmap_mask) {
+ if (kmap_mask & BIT(0))
+ kunmap(*pp);
+ pp++;
+ kmap_mask >>= 1;
}
}
@@ -437,6 +435,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
unsigned int data_len = c_tx->bytes_unsent, hdr_len = 0, trl_len = 0,
sge_off = c_tx->sge_off, sge_idx = c_tx->sge_idx,
pbl_idx = c_tx->pbl_idx;
+ unsigned long kmap_mask = 0L;
if (c_tx->state == SIW_SEND_HDR) {
if (c_tx->use_sendpage) {
@@ -463,8 +462,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
if (!(tx_flags(wqe) & SIW_WQE_INLINE)) {
mem = wqe->mem[sge_idx];
- if (!mem->mem_obj)
- is_kva = 1;
+ is_kva = mem->mem_obj == NULL ? 1 : 0;
} else {
is_kva = 1;
}
@@ -473,7 +471,8 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
* tx from kernel virtual address: either inline data
* or memory region with assigned kernel buffer
*/
- iov[seg].iov_base = (void *)(sge->laddr + sge_off);
+ iov[seg].iov_base =
+ (void *)(uintptr_t)(sge->laddr + sge_off);
iov[seg].iov_len = sge_len;
if (do_crc)
@@ -500,12 +499,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
p = siw_get_upage(mem->umem,
sge->laddr + sge_off);
if (unlikely(!p)) {
- if (hdr_len)
- seg--;
- if (!c_tx->use_sendpage && seg) {
- siw_unmap_pages(page_array,
- hdr_len, seg);
- }
+ siw_unmap_pages(page_array, kmap_mask);
wqe->processed -= c_tx->bytes_unsent;
rv = -EFAULT;
goto done_crc;
@@ -515,6 +509,10 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
if (!c_tx->use_sendpage) {
iov[seg].iov_base = kmap(p) + fp_off;
iov[seg].iov_len = plen;
+
+ /* Remember for later kunmap() */
+ kmap_mask |= BIT(seg);
+
if (do_crc)
crypto_shash_update(
c_tx->mpa_crc_hd,
@@ -526,13 +524,13 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
page_address(p) + fp_off,
plen);
} else {
- u64 pa = ((sge->laddr + sge_off) & PAGE_MASK);
+ u64 va = sge->laddr + sge_off;
- page_array[seg] = virt_to_page(pa);
+ page_array[seg] = virt_to_page(va & PAGE_MASK);
if (do_crc)
crypto_shash_update(
c_tx->mpa_crc_hd,
- (void *)(sge->laddr + sge_off),
+ (void *)(uintptr_t)va,
plen);
}
@@ -543,10 +541,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s)
if (++seg > (int)MAX_ARRAY) {
siw_dbg_qp(tx_qp(c_tx), "to many fragments\n");
- if (!is_kva && !c_tx->use_sendpage) {
- siw_unmap_pages(page_array, hdr_len,
- seg - 1);
- }
+ siw_unmap_pages(page_array, kmap_mask);
wqe->processed -= c_tx->bytes_unsent;
rv = -EMSGSIZE;
goto done_crc;
@@ -597,8 +592,7 @@ sge_done:
} else {
rv = kernel_sendmsg(s, &msg, iov, seg + 1,
hdr_len + data_len + trl_len);
- if (!is_kva)
- siw_unmap_pages(page_array, hdr_len, seg);
+ siw_unmap_pages(page_array, kmap_mask);
}
if (rv < (int)hdr_len) {
/* Not even complete hdr pushed or negative rv */
@@ -829,7 +823,8 @@ static int siw_qp_sq_proc_tx(struct siw_qp *qp, struct siw_wqe *wqe)
rv = -EINVAL;
goto tx_error;
}
- wqe->sqe.sge[0].laddr = (u64)&wqe->sqe.sge[1];
+ wqe->sqe.sge[0].laddr =
+ (u64)(uintptr_t)&wqe->sqe.sge[1];
}
}
wqe->wr_status = SIW_WR_INPROGRESS;
@@ -924,7 +919,7 @@ tx_error:
static int siw_fastreg_mr(struct ib_pd *pd, struct siw_sqe *sqe)
{
- struct ib_mr *base_mr = (struct ib_mr *)sqe->base_mr;
+ struct ib_mr *base_mr = (struct ib_mr *)(uintptr_t)sqe->base_mr;
struct siw_device *sdev = to_siw_dev(pd->device);
struct siw_mem *mem = siw_mem_id2obj(sdev, sqe->rkey >> 8);
int rv = 0;
@@ -954,8 +949,7 @@ static int siw_fastreg_mr(struct ib_pd *pd, struct siw_sqe *sqe)
mem->stag = sqe->rkey;
mem->perms = sqe->access;
- siw_dbg_mem(mem, "STag now valid, MR va: 0x%016llx -> 0x%016llx\n",
- mem->va, base_mr->iova);
+ siw_dbg_mem(mem, "STag 0x%08x now valid\n", sqe->rkey);
mem->va = base_mr->iova;
mem->stag_valid = 1;
out:
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 05:44:55 +0000