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IB/iser: Centralize memory region invalidation to a function

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Eliminates code duplication.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sagi Grimberg 2014-12-07 16:10:01 +02:00 committed by Roland Dreier
parent f0caef6d40
commit a11b3e6935
1 changed files with 16 additions and 16 deletions
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32
drivers/infiniband/ulp/iser/iser_memory.c
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@ -524,6 +524,20 @@ iser_set_prot_checks(struct scsi_cmnd *sc, u8 *mask)
return 0;
}
static void
iser_inv_rkey(struct ib_send_wr *inv_wr, struct ib_mr *mr)
{
u32 rkey;
memset(inv_wr, 0, sizeof(*inv_wr));
inv_wr->opcode = IB_WR_LOCAL_INV;
inv_wr->wr_id = ISER_FASTREG_LI_WRID;
inv_wr->ex.invalidate_rkey = mr->rkey;
rkey = ib_inc_rkey(mr->rkey);
ib_update_fast_reg_key(mr, rkey);
}
static int
iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
struct fast_reg_descriptor *desc, struct ib_sge *data_sge,
@ -535,7 +549,6 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
struct ib_send_wr *bad_wr, *wr = NULL;
struct ib_sig_attrs sig_attrs;
int ret;
u32 key;
memset(&sig_attrs, 0, sizeof(sig_attrs));
ret = iser_set_sig_attrs(iser_task->sc, &sig_attrs);
@ -547,14 +560,8 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
goto err;
if (!(desc->reg_indicators & ISER_SIG_KEY_VALID)) {
memset(&inv_wr, 0, sizeof(inv_wr));
inv_wr.opcode = IB_WR_LOCAL_INV;
inv_wr.wr_id = ISER_FASTREG_LI_WRID;
inv_wr.ex.invalidate_rkey = pi_ctx->sig_mr->rkey;
iser_inv_rkey(&inv_wr, pi_ctx->sig_mr);
wr = &inv_wr;
/* Bump the key */
key = (u8)(pi_ctx->sig_mr->rkey & 0x000000FF);
ib_update_fast_reg_key(pi_ctx->sig_mr, ++key);
}
memset(&sig_wr, 0, sizeof(sig_wr));
@ -612,7 +619,6 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
struct ib_fast_reg_page_list *frpl;
struct ib_send_wr fastreg_wr, inv_wr;
struct ib_send_wr *bad_wr, *wr = NULL;
u8 key;
int ret, offset, size, plen;
/* if there a single dma entry, dma mr suffices */
@ -644,14 +650,8 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
}
if (!(desc->reg_indicators & ind)) {
memset(&inv_wr, 0, sizeof(inv_wr));
inv_wr.wr_id = ISER_FASTREG_LI_WRID;
inv_wr.opcode = IB_WR_LOCAL_INV;
inv_wr.ex.invalidate_rkey = mr->rkey;
iser_inv_rkey(&inv_wr, mr);
wr = &inv_wr;
/* Bump the key */
key = (u8)(mr->rkey & 0x000000FF);
ib_update_fast_reg_key(mr, ++key);
}
/* Prepare FASTREG WR */