From ed1083b251f0ed992e90739994c31cffa597abfa Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 24 Feb 2016 19:24:04 +0200 Subject: [PATCH] iser-target: Remove ISER_RECV_DATA_SEG_LEN This is the same as ISCSI_DEF_MAX_RECV_SEG_LEN (and must be the same given the structure layouts), so just use that constant instead. This also allows removing ISER_RX_LOGIN_SIZE in favor of ISER_RX_PAYLOAD_SIZE. Signed-off-by: Christoph Hellwig Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger --- drivers/infiniband/ulp/isert/ib_isert.c | 10 +++++----- drivers/infiniband/ulp/isert/ib_isert.h | 8 +++----- 2 files changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 21f4f44de3ac..838d16ded772 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -596,7 +596,7 @@ isert_free_login_buf(struct isert_conn *isert_conn) struct ib_device *ib_dev = isert_conn->device->ib_device; ib_dma_unmap_single(ib_dev, isert_conn->login_rsp_dma, - ISER_RX_LOGIN_SIZE, DMA_TO_DEVICE); + ISER_RX_PAYLOAD_SIZE, DMA_TO_DEVICE); ib_dma_unmap_single(ib_dev, isert_conn->login_req_dma, ISCSI_DEF_MAX_RECV_SEG_LEN, DMA_FROM_DEVICE); @@ -610,7 +610,7 @@ isert_alloc_login_buf(struct isert_conn *isert_conn, int ret; isert_conn->login_buf = kzalloc(ISCSI_DEF_MAX_RECV_SEG_LEN + - ISER_RX_LOGIN_SIZE, GFP_KERNEL); + ISER_RX_PAYLOAD_SIZE, GFP_KERNEL); if (!isert_conn->login_buf) { isert_err("Unable to allocate isert_conn->login_buf\n"); return -ENOMEM; @@ -637,7 +637,7 @@ isert_alloc_login_buf(struct isert_conn *isert_conn, isert_conn->login_rsp_dma = ib_dma_map_single(ib_dev, (void *)isert_conn->login_rsp_buf, - ISER_RX_LOGIN_SIZE, DMA_TO_DEVICE); + ISER_RX_PAYLOAD_SIZE, DMA_TO_DEVICE); ret = ib_dma_mapping_error(ib_dev, isert_conn->login_rsp_dma); if (ret) { @@ -1122,7 +1122,7 @@ isert_rdma_post_recvl(struct isert_conn *isert_conn) memset(&sge, 0, sizeof(struct ib_sge)); sge.addr = isert_conn->login_req_dma; - sge.length = ISER_RX_LOGIN_SIZE; + sge.length = ISER_RX_PAYLOAD_SIZE; sge.lkey = isert_conn->device->pd->local_dma_lkey; isert_dbg("Setup sge: addr: %llx length: %d 0x%08x\n", @@ -1596,7 +1596,7 @@ isert_rcv_completion(struct iser_rx_desc *desc, if ((char *)desc == isert_conn->login_req_buf) { rx_dma = isert_conn->login_req_dma; - rx_buflen = ISER_RX_LOGIN_SIZE; + rx_buflen = ISER_RX_PAYLOAD_SIZE; isert_dbg("login_buf: Using rx_dma: 0x%llx, rx_buflen: %d\n", rx_dma, rx_buflen); } else { diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index 9f916b12cf40..2ef2d6cdbe52 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -36,9 +36,7 @@ /* Constant PDU lengths calculations */ #define ISER_HEADERS_LEN (sizeof(struct iser_ctrl) + \ sizeof(struct iscsi_hdr)) -#define ISER_RECV_DATA_SEG_LEN 8192 -#define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN) -#define ISER_RX_LOGIN_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN) +#define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN) /* QP settings */ /* Maximal bounds on received asynchronous PDUs */ @@ -62,7 +60,7 @@ ISERT_MAX_TX_MISC_PDUS + \ ISERT_MAX_RX_MISC_PDUS) -#define ISER_RX_PAD_SIZE (ISER_RECV_DATA_SEG_LEN + 4096 - \ +#define ISER_RX_PAD_SIZE (ISCSI_DEF_MAX_RECV_SEG_LEN + 4096 - \ (ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge))) #define ISCSI_ISER_SG_TABLESIZE 256 @@ -93,7 +91,7 @@ enum iser_conn_state { struct iser_rx_desc { struct iser_ctrl iser_header; struct iscsi_hdr iscsi_header; - char data[ISER_RECV_DATA_SEG_LEN]; + char data[ISCSI_DEF_MAX_RECV_SEG_LEN]; u64 dma_addr; struct ib_sge rx_sg; char pad[ISER_RX_PAD_SIZE]; -- 2.20.1