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| author | Hans Wippel <hwippel@linux.ibm.com> | 2018-06-28 19:05:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-30 20:42:26 +0900 |
| commit | be244f28d22f77d939ba2b973c102ad2b49d3496 (patch) | |
| tree | c819462ffbf01974dcc81d7069050cb3a384efd0 /net/smc/smc_tx.h | |
| parent | c758dfddc1b5b1c9b8c64e5e4bb9bf24b74f4a59 (diff) | |
| download | lwn-be244f28d22f77d939ba2b973c102ad2b49d3496.tar.gz lwn-be244f28d22f77d939ba2b973c102ad2b49d3496.zip | |
net/smc: add SMC-D support in data transfer
The data transfer and CDC message headers differ in SMC-R and SMC-D.
This patch adds support for the SMC-D data transfer to the existing SMC
code. It consists of the following:
* SMC-D CDC support
* SMC-D tx support
* SMC-D rx support
The CDC header is stored at the beginning of the receive buffer. Thus, a
rx_offset variable is added for the CDC header offset within the buffer
(0 for SMC-R).
Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Suggested-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_tx.h')
| -rw-r--r-- | net/smc/smc_tx.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/smc/smc_tx.h b/net/smc/smc_tx.h index 9d2238909fa0..b22bdc5694c4 100644 --- a/net/smc/smc_tx.h +++ b/net/smc/smc_tx.h @@ -33,5 +33,7 @@ int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len); int smc_tx_sndbuf_nonempty(struct smc_connection *conn); void smc_tx_sndbuf_nonfull(struct smc_sock *smc); void smc_tx_consumer_update(struct smc_connection *conn, bool force); +int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len, + u32 offset, int signal); #endif /* SMC_TX_H */ |