diff options
| author |   Ursula Braun <ubraun@linux.ibm.com> | 2019-02-04 13:44:44 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-02-04 09:11:19 -0800 |
| commit | ad6f317f720f4a3121756c23831a43dda9b095e5 (patch) | |
| tree | dacaa78d52ad4cd6b3850618987e5cc6de80cb52 /net/smc/smc_cdc.h | |
| parent | net: dp83640: expire old TX-skb (diff) | |
| download | linux-dev-ad6f317f720f4a3121756c23831a43dda9b095e5.tar.xz linux-dev-ad6f317f720f4a3121756c23831a43dda9b095e5.zip | |
net/smc: preallocated memory for rdma work requests
The work requests for rdma writes are built in local variables within
function smc_tx_rdma_write(). This violates the rule that the work
request storage has to stay till the work request is confirmed by
a completion queue response.
This patch introduces preallocated memory for these work requests.
The storage is allocated, once a link (and thus a queue pair) is
established.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_cdc.h')
| -rw-r--r-- | net/smc/smc_cdc.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/smc/smc_cdc.h b/net/smc/smc_cdc.h index b5bfe38c7f9b..2148da7a26b1 100644 --- a/net/smc/smc_cdc.h +++ b/net/smc/smc_cdc.h @@ -270,10 +270,16 @@ static inline void smc_cdc_msg_to_host(struct smc_host_cdc_msg *local, smcr_cdc_msg_to_host(local, peer, conn); } -struct smc_cdc_tx_pend; +struct smc_cdc_tx_pend { + struct smc_connection *conn; /* socket connection */ + union smc_host_cursor cursor; /* tx sndbuf cursor sent */ + union smc_host_cursor p_cursor; /* rx RMBE cursor produced */ + u16 ctrl_seq; /* conn. tx sequence # */ +}; int smc_cdc_get_free_slot(struct smc_connection *conn, struct smc_wr_buf **wr_buf, + struct smc_rdma_wr **wr_rdma_buf, struct smc_cdc_tx_pend **pend); void smc_cdc_tx_dismiss_slots(struct smc_connection *conn); int smc_cdc_msg_send(struct smc_connection *conn, struct smc_wr_buf *wr_buf, |