diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index e232f3c608b4..726c064b22d8 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -146,6 +146,9 @@ static int pio_wait(struct rvt_qp *qp, /* Length of buffer to create verbs txreq cache name */ #define TXREQ_NAME_LEN 24 +/* 16B trailing buffer */ +static const u8 trail_buf[MAX_16B_PADDING]; + static uint wss_threshold; module_param(wss_threshold, uint, S_IRUGO); MODULE_PARM_DESC(wss_threshold, "Percentage (1-100) of LLC to use as a threshold for a cacheless copy"); @@ -814,7 +817,6 @@ static int build_verbs_tx_desc( u16 hdrbytes = tx->hdr_dwords << 2; u32 *hdr; u8 extra_bytes = 0; - static char trail_buf[12]; /* CRC = 4, LT = 1, Pad = 0 to 7 bytes */ if (tx->phdr.hdr.hdr_type) { /* @@ -869,9 +871,9 @@ static int build_verbs_tx_desc( } /* add icrc, lt byte, and padding to flit */ - if (extra_bytes != 0) + if (extra_bytes) ret = sdma_txadd_kvaddr(sde->dd, &tx->txreq, - trail_buf, extra_bytes); + (void *)trail_buf, extra_bytes); bail_txadd: return ret; @@ -1128,18 +1130,10 @@ int hfi1_verbs_send_pio(struct rvt_qp *qp, struct hfi1_pkt_state *ps, len -= slen; } } - /* - * Bypass packet will need to copy additional - * bytes to accommodate for CRC and LT bytes - */ - if (extra_bytes) { - u8 *empty_buf; + /* add icrc, lt byte, and padding to flit */ + if (extra_bytes) + seg_pio_copy_mid(pbuf, trail_buf, extra_bytes); - empty_buf = kcalloc(extra_bytes, sizeof(u8), - GFP_KERNEL); - seg_pio_copy_mid(pbuf, empty_buf, extra_bytes); - kfree(empty_buf); - } seg_pio_copy_end(pbuf); } |