From 10633c37bf461b246491f6587f9efe09260893f9 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Sun, 7 Dec 2014 13:12:04 +0200 Subject: [PATCH] iser-target: Remove code duplication - Fall-through in switch case instead in do_control_comp. - Move rkey invalidation to a function. Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger --- drivers/infiniband/ulp/isert/ib_isert.c | 47 ++++++++++++++------------------- 1 file changed, 20 insertions(+), 27 deletions(-) diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 0de507c..2964f21 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -1869,11 +1869,8 @@ isert_do_control_comp(struct work_struct *work) switch (cmd->i_state) { case ISTATE_SEND_TASKMGTRSP: iscsit_tmr_post_handler(cmd, cmd->conn); - cmd->i_state = ISTATE_SENT_STATUS; - isert_completion_put(&isert_cmd->tx_desc, isert_cmd, - ib_dev, false); - break; - case ISTATE_SEND_REJECT: + case ISTATE_SEND_REJECT: /* FALLTHRU */ + case ISTATE_SEND_TEXTRSP: /* FALLTHRU */ cmd->i_state = ISTATE_SENT_STATUS; isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev, false); @@ -1881,11 +1878,6 @@ isert_do_control_comp(struct work_struct *work) case ISTATE_SEND_LOGOUTRSP: iscsit_logout_post_handler(cmd, cmd->conn); break; - case ISTATE_SEND_TEXTRSP: - cmd->i_state = ISTATE_SENT_STATUS; - isert_completion_put(&isert_cmd->tx_desc, isert_cmd, - ib_dev, false); - break; default: isert_err("Unknown i_state %d\n", cmd->i_state); dump_stack(); @@ -2459,6 +2451,21 @@ isert_map_fr_pagelist(struct ib_device *ib_dev, return n_pages; } +static inline void +isert_inv_rkey(struct ib_send_wr *inv_wr, struct ib_mr *mr) +{ + u32 rkey; + + 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; + + /* Bump the key */ + rkey = ib_inc_rkey(mr->rkey); + ib_update_fast_reg_key(mr, rkey); +} + static int isert_fast_reg_mr(struct isert_conn *isert_conn, struct fast_reg_descriptor *fr_desc, @@ -2473,7 +2480,6 @@ isert_fast_reg_mr(struct isert_conn *isert_conn, struct ib_send_wr *bad_wr, *wr = NULL; int ret, pagelist_len; u32 page_off; - u8 key; if (mem->dma_nents == 1) { sge->lkey = isert_conn->conn_mr->lkey; @@ -2502,15 +2508,9 @@ isert_fast_reg_mr(struct isert_conn *isert_conn, pagelist_len = isert_map_fr_pagelist(ib_dev, mem->sg, mem->nents, &frpl->page_list[0]); - if (!(fr_desc->ind & ISERT_DATA_KEY_VALID)) { - 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; + if (!(fr_desc->ind & ind)) { + isert_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 */ @@ -2614,7 +2614,6 @@ isert_reg_sig_mr(struct isert_conn *isert_conn, struct pi_context *pi_ctx = fr_desc->pi_ctx; struct ib_sig_attrs sig_attrs; int ret; - u32 key; memset(&sig_attrs, 0, sizeof(sig_attrs)); ret = isert_set_sig_attrs(se_cmd, &sig_attrs); @@ -2624,14 +2623,8 @@ isert_reg_sig_mr(struct isert_conn *isert_conn, sig_attrs.check_mask = isert_set_prot_checks(se_cmd->prot_checks); if (!(fr_desc->ind & ISERT_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; + isert_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)); -- 2.7.4