diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-05-01 12:48:01 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-01 16:20:04 -0700 |
| commit | 7562a13d5a8ce9bc5020705da5f50221021f5a2c (patch) | |
| tree | b3140c512fa3b0d89fba8b6d918f66bcf6327f77 /net/smc/smc_core.c | |
| parent | 47c0b5806f21b4806e5d9d57e08069320e34e835 (diff) | |
| download | linux-7562a13d5a8ce9bc5020705da5f50221021f5a2c.tar.bz2 | |
net/smc: multiple link support for rmb buffer registration
The CONFIRM_RKEY LLC processing handles all links in one LLC message.
Move the call to this processing out of smcr_link_reg_rmb() which does
processing per link, into smcr_lgr_reg_rmbs() which is responsible for
link group level processing. Move smcr_link_reg_rmb() into module
smc_core.c.
>From af_smc.c now call smcr_lgr_reg_rmbs() to register new rmbs on all
available links.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_core.c')
| -rw-r--r-- | net/smc/smc_core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 3539ceef9a97..de6bc36fe9a7 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1127,6 +1127,22 @@ free_table: return rc; } +/* register a new rmb on IB device */ +int smcr_link_reg_rmb(struct smc_link *link, struct smc_buf_desc *rmb_desc) +{ + if (list_empty(&link->lgr->list)) + return -ENOLINK; + if (!rmb_desc->is_reg_mr[link->link_idx]) { + /* register memory region for new rmb */ + if (smc_wr_reg_send(link, rmb_desc->mr_rx[link->link_idx])) { + rmb_desc->is_reg_err = true; + return -EFAULT; + } + rmb_desc->is_reg_mr[link->link_idx] = true; + } + return 0; +} + static struct smc_buf_desc *smcr_new_buf_create(struct smc_link_group *lgr, bool is_rmb, int bufsize) { |