diff options
| author | Hans Wippel <hwippel@linux.ibm.com> | 2018-06-28 20:05:10 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-30 14:42:26 +0300 |
| commit | be244f28d22f77d939ba2b973c102ad2b49d3496 (patch) | |
| tree | c819462ffbf01974dcc81d7069050cb3a384efd0 /net/smc/smc.h | |
| parent | c758dfddc1b5b1c9b8c64e5e4bb9bf24b74f4a59 (diff) | |
| download | linux-be244f28d22f77d939ba2b973c102ad2b49d3496.tar.xz | |
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.h')
| -rw-r--r-- | net/smc/smc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/smc/smc.h b/net/smc/smc.h index 7c86f716a92e..8c6231011779 100644 --- a/net/smc/smc.h +++ b/net/smc/smc.h @@ -183,6 +183,11 @@ struct smc_connection { spinlock_t acurs_lock; /* protect cursors */ #endif struct work_struct close_work; /* peer sent some closing */ + struct tasklet_struct rx_tsklet; /* Receiver tasklet for SMC-D */ + u8 rx_off; /* receive offset: + * 0 for SMC-R, 32 for SMC-D + */ + u64 peer_token; /* SMC-D token of peer */ }; struct smc_sock { /* smc sock container */ |