diff options
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_sdma.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c index 0749689d7643..8adb6dfeb2eb 100644 --- a/drivers/infiniband/hw/hfi1/user_sdma.c +++ b/drivers/infiniband/hw/hfi1/user_sdma.c @@ -143,7 +143,9 @@ MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 12 /* KDETH OM multipliers and switch over point */ #define KDETH_OM_SMALL 4 +#define KDETH_OM_SMALL_SHIFT 2 #define KDETH_OM_LARGE 64 +#define KDETH_OM_LARGE_SHIFT 6 #define KDETH_OM_MAX_SIZE (1 << ((KDETH_OM_LARGE / KDETH_OM_SMALL) + 1)) /* Tx request flag bits */ @@ -229,12 +231,6 @@ struct user_sdma_request { */ u32 tidoffset; /* - * KDETH.OM - * Remember this because the header template always sets it - * to 0. - */ - u8 omfactor; - /* * We copy the iovs for this request (based on * info.iovcnt). These are only the data vectors */ @@ -1323,6 +1319,7 @@ static int set_txreq_header(struct user_sdma_request *req, { struct hfi1_user_sdma_pkt_q *pq = req->pq; struct hfi1_pkt_header *hdr = &tx->hdr; + u8 omfactor; /* KDETH.OM */ u16 pbclen; int ret; u32 tidval = 0, lrhlen = get_lrh_len(*hdr, pad_len(datalen)); @@ -1400,8 +1397,9 @@ static int set_txreq_header(struct user_sdma_request *req, } tidval = req->tids[req->tididx]; } - req->omfactor = EXP_TID_GET(tidval, LEN) * PAGE_SIZE >= - KDETH_OM_MAX_SIZE ? KDETH_OM_LARGE : KDETH_OM_SMALL; + omfactor = EXP_TID_GET(tidval, LEN) * PAGE_SIZE >= + KDETH_OM_MAX_SIZE ? KDETH_OM_LARGE_SHIFT : + KDETH_OM_SMALL_SHIFT; /* Set KDETH.TIDCtrl based on value for this TID. */ KDETH_SET(hdr->kdeth.ver_tid_offset, TIDCTRL, EXP_TID_GET(tidval, CTRL)); @@ -1416,12 +1414,12 @@ static int set_txreq_header(struct user_sdma_request *req, * transfer. */ SDMA_DBG(req, "TID offset %ubytes %uunits om%u", - req->tidoffset, req->tidoffset / req->omfactor, - req->omfactor != KDETH_OM_SMALL); + req->tidoffset, req->tidoffset >> omfactor, + omfactor != KDETH_OM_SMALL_SHIFT); KDETH_SET(hdr->kdeth.ver_tid_offset, OFFSET, - req->tidoffset / req->omfactor); + req->tidoffset >> omfactor); KDETH_SET(hdr->kdeth.ver_tid_offset, OM, - req->omfactor != KDETH_OM_SMALL); + omfactor != KDETH_OM_SMALL_SHIFT); } done: trace_hfi1_sdma_user_header(pq->dd, pq->ctxt, pq->subctxt, @@ -1433,6 +1431,7 @@ static int set_txreq_header_ahg(struct user_sdma_request *req, struct user_sdma_txreq *tx, u32 len) { int diff = 0; + u8 omfactor; /* KDETH.OM */ struct hfi1_user_sdma_pkt_q *pq = req->pq; struct hfi1_pkt_header *hdr = &req->hdr; u16 pbclen = le16_to_cpu(hdr->pbc[0]); @@ -1484,14 +1483,15 @@ static int set_txreq_header_ahg(struct user_sdma_request *req, } tidval = req->tids[req->tididx]; } - req->omfactor = ((EXP_TID_GET(tidval, LEN) * + omfactor = ((EXP_TID_GET(tidval, LEN) * PAGE_SIZE) >= - KDETH_OM_MAX_SIZE) ? KDETH_OM_LARGE : - KDETH_OM_SMALL; + KDETH_OM_MAX_SIZE) ? KDETH_OM_LARGE_SHIFT : + KDETH_OM_SMALL_SHIFT; /* KDETH.OM and KDETH.OFFSET (TID) */ AHG_HEADER_SET(req->ahg, diff, 7, 0, 16, - ((!!(req->omfactor - KDETH_OM_SMALL)) << 15 | - ((req->tidoffset / req->omfactor) & 0x7fff))); + ((!!(omfactor - KDETH_OM_SMALL_SHIFT)) << 15 | + ((req->tidoffset >> omfactor) + & 0x7fff))); /* KDETH.TIDCtrl, KDETH.TID, KDETH.Intr, KDETH.SH */ val = cpu_to_le16(((EXP_TID_GET(tidval, CTRL) & 0x3) << 10) | (EXP_TID_GET(tidval, IDX) & 0x3ff)); |