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net/smc: remove handling of CONFIRM_RKEY_CONTINUE

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The new SMC-R multiple link support will support a maximum of 3 links,
and one CONFIRM_RKEY LLC message can transport 3 rkeys of an rmb buffer.
There is no need for the LLC message type CONFIRM_RKEY_CONTINUE which is
needed when more than 3 rkeys per rmb buffer needs to be exchanged.

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>
This commit is contained in:
Karsten Graul 2020-04-30 15:55:50 +02:00 committed by David S. Miller
parent 218b24fe38
commit 42d18acce9
1 changed files with 4 additions and 17 deletions
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21
net/smc/smc_llc.c
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@ -98,12 +98,6 @@ struct smc_llc_msg_confirm_rkey { /* type 0x06 */
u8 reserved;
};
struct smc_llc_msg_confirm_rkey_cont { /* type 0x08 */
struct smc_llc_hdr hd;
u8 num_rkeys;
struct smc_rmb_rtoken rtoken[SMC_LLC_RKEYS_PER_MSG];
};
#define SMC_LLC_DEL_RKEY_MAX 8
#define SMC_LLC_FLAG_RKEY_RETRY 0x10
#define SMC_LLC_FLAG_RKEY_NEG 0x20
@ -123,7 +117,6 @@ union smc_llc_msg {
struct smc_llc_msg_del_link delete_link;
struct smc_llc_msg_confirm_rkey confirm_rkey;
struct smc_llc_msg_confirm_rkey_cont confirm_rkey_cont;
struct smc_llc_msg_delete_rkey delete_rkey;
struct smc_llc_msg_test_link test_link;
@ -628,14 +621,6 @@ static void smc_llc_rmt_delete_rkey(struct smc_link_group *lgr)
smc_llc_flow_qentry_del(&lgr->llc_flow_rmt);
}
static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link,
struct smc_llc_msg_confirm_rkey_cont *llc)
{
/* ignore rtokens for other links, we have only one link */
llc->hd.flags |= SMC_LLC_FLAG_RESP;
smc_llc_send_message(link, llc);
}
/* flush the llc event queue */
static void smc_llc_event_flush(struct smc_link_group *lgr)
{
@ -701,7 +686,9 @@ static void smc_llc_event_handler(struct smc_llc_qentry *qentry)
}
return;
case SMC_LLC_CONFIRM_RKEY_CONT:
smc_llc_rx_confirm_rkey_cont(link, &llc->confirm_rkey_cont);
/* not used because max links is 3, and 3 rkeys fit into
* one CONFIRM_RKEY message
*/
break;
case SMC_LLC_DELETE_RKEY:
/* new request from remote, assign to remote flow */
@ -770,7 +757,7 @@ static void smc_llc_rx_response(struct smc_link *link,
smc_lgr_schedule_free_work_fast(link->lgr);
break;
case SMC_LLC_CONFIRM_RKEY_CONT:
/* unused as long as we don't send this type of msg */
/* not used because max links is 3 */
break;
}
kfree(qentry);