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| author | Michael J. Ruhl | 2018-09-10 18:39:20 +0200 |
|---|---|---|
| committer | Jason Gunthorpe | 2018-09-11 18:05:17 +0200 |
| commit | 3ca633f1ff7b1c1e8653181352485889b5636a12 (patch) | |
| tree | e059fdf147952822880305ee76808017555e0c5c /drivers/infiniband/hw/hfi1/user_sdma.c | |
| parent | IB/hfi1: Remove race conditions in user_sdma send path (diff) | |
| download | kernel-qcow2-linux-3ca633f1ff7b1c1e8653181352485889b5636a12.tar.gz kernel-qcow2-linux-3ca633f1ff7b1c1e8653181352485889b5636a12.tar.xz kernel-qcow2-linux-3ca633f1ff7b1c1e8653181352485889b5636a12.zip | |
IB/hfi1: Right size user_sdma sequence numbers and related variables
Hardware limits the maximum number of packets to u16 packets.
Match that size for all relevant sequence numbers in the user_sdma
engine.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/user_sdma.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_sdma.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c index fd6e9f56f53e..bee75beda730 100644 --- a/drivers/infiniband/hw/hfi1/user_sdma.c +++ b/drivers/infiniband/hw/hfi1/user_sdma.c @@ -76,8 +76,7 @@ MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 12 static unsigned initial_pkt_count = 8; -static int user_sdma_send_pkts(struct user_sdma_request *req, - unsigned maxpkts); +static int user_sdma_send_pkts(struct user_sdma_request *req, u16 maxpkts); static void user_sdma_txreq_cb(struct sdma_txreq *txreq, int status); static inline void pq_update(struct hfi1_user_sdma_pkt_q *pq); static void user_sdma_free_request(struct user_sdma_request *req, bool unpin); @@ -756,9 +755,10 @@ static int user_sdma_txadd(struct user_sdma_request *req, return ret; } -static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts) +static int user_sdma_send_pkts(struct user_sdma_request *req, u16 maxpkts) { - int ret = 0, count; + int ret = 0; + u16 count; unsigned npkts = 0; struct user_sdma_txreq *tx = NULL; struct hfi1_user_sdma_pkt_q *pq = NULL; |