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authorMichael S. Tsirkin <mst@mellanox.co.il>2005-11-29 14:33:46 -0500
committerRoland Dreier <rolandd@cisco.com>2005-11-29 14:33:46 -0500
commite0ae9ecf469fdd3c1ad999efbf4fe6b782f49900 (patch)
tree9896d3c1093ded78c62da6b9a52b71e282c763e0 /drivers/infiniband/hw/mthca/mthca_wqe.h
parent267ee88ed34c76dc527eeb3d95f9f9558ac99973 (diff)
IB/mthca: fix posting of send lists of length >= 255 on mem-free HCAs
On mem-free HCAs, when posting a long list of send requests, a doorbell must be rung every 255 requests. Add code to handle this. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_wqe.h')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_wqe.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h
index 73f1c0b9021e..e7d2c1e86199 100644
--- a/drivers/infiniband/hw/mthca/mthca_wqe.h
+++ b/drivers/infiniband/hw/mthca/mthca_wqe.h
@@ -50,7 +50,8 @@ enum {
50 50
51enum { 51enum {
52 MTHCA_INVAL_LKEY = 0x100, 52 MTHCA_INVAL_LKEY = 0x100,
53 MTHCA_TAVOR_MAX_WQES_PER_RECV_DB = 256 53 MTHCA_TAVOR_MAX_WQES_PER_RECV_DB = 256,
54 MTHCA_ARBEL_MAX_WQES_PER_SEND_DB = 255
54}; 55};
55 56
56struct mthca_next_seg { 57struct mthca_next_seg {