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net/smc: add function to get link group from link

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Replace a frequently used construct with a more readable variant,
reducing the code. Also might come handy when we start to support
more than a single per link group.

Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Raspl
2018-07-23 13:53:10 +02:00
committed by David S. Miller
parent bac6de7b63
commit 00e5fb263f
5 changed files with 20 additions and 47 deletions
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30
net/smc/smc_llc.c
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@@ -186,8 +186,7 @@ int smc_llc_send_confirm_link(struct smc_link *link, u8 mac[],
union ib_gid *gid,
enum smc_llc_reqresp reqresp)
{
struct smc_link_group *lgr = container_of(link, struct smc_link_group,
lnk[SMC_SINGLE_LINK]);
struct smc_link_group *lgr = smc_get_lgr(link);
struct smc_llc_msg_confirm_link *confllc;
struct smc_wr_tx_pend_priv *pend;
struct smc_wr_buf *wr_buf;
@@ -381,11 +380,9 @@ static int smc_llc_send_message(struct smc_link *link, void *llcbuf, int llclen)
static void smc_llc_rx_confirm_link(struct smc_link *link,
struct smc_llc_msg_confirm_link *llc)
{
struct smc_link_group *lgr;
struct smc_link_group *lgr = smc_get_lgr(link);
int conf_rc;
lgr = container_of(link, struct smc_link_group, lnk[SMC_SINGLE_LINK]);
/* RMBE eyecatchers are not supported */
if (llc->hd.flags & SMC_LLC_FLAG_NO_RMBE_EYEC)
conf_rc = 0;
@@ -411,8 +408,7 @@ static void smc_llc_rx_confirm_link(struct smc_link *link,
static void smc_llc_rx_add_link(struct smc_link *link,
struct smc_llc_msg_add_link *llc)
{
struct smc_link_group *lgr = container_of(link, struct smc_link_group,
lnk[SMC_SINGLE_LINK]);
struct smc_link_group *lgr = smc_get_lgr(link);
if (llc->hd.flags & SMC_LLC_FLAG_RESP) {
if (link->state == SMC_LNK_ACTIVATING)
@@ -442,8 +438,7 @@ static void smc_llc_rx_add_link(struct smc_link *link,
static void smc_llc_rx_delete_link(struct smc_link *link,
struct smc_llc_msg_del_link *llc)
{
struct smc_link_group *lgr = container_of(link, struct smc_link_group,
lnk[SMC_SINGLE_LINK]);
struct smc_link_group *lgr = smc_get_lgr(link);
if (llc->hd.flags & SMC_LLC_FLAG_RESP) {
if (lgr->role == SMC_SERV)
@@ -476,17 +471,14 @@ static void smc_llc_rx_test_link(struct smc_link *link,
static void smc_llc_rx_confirm_rkey(struct smc_link *link,
struct smc_llc_msg_confirm_rkey *llc)
{
struct smc_link_group *lgr;
int rc;
lgr = container_of(link, struct smc_link_group, lnk[SMC_SINGLE_LINK]);
if (llc->hd.flags & SMC_LLC_FLAG_RESP) {
link->llc_confirm_rkey_rc = llc->hd.flags &
SMC_LLC_FLAG_RKEY_NEG;
complete(&link->llc_confirm_rkey);
} else {
rc = smc_rtoken_add(lgr,
rc = smc_rtoken_add(smc_get_lgr(link),
llc->rtoken[0].rmb_vaddr,
llc->rtoken[0].rmb_key);
@@ -514,18 +506,15 @@ static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link,
static void smc_llc_rx_delete_rkey(struct smc_link *link,
struct smc_llc_msg_delete_rkey *llc)
{
struct smc_link_group *lgr;
u8 err_mask = 0;
int i, max;
lgr = container_of(link, struct smc_link_group, lnk[SMC_SINGLE_LINK]);
if (llc->hd.flags & SMC_LLC_FLAG_RESP) {
/* unused as long as we don't send this type of msg */
} else {
max = min_t(u8, llc->num_rkeys, SMC_LLC_DEL_RKEY_MAX);
for (i = 0; i < max; i++) {
if (smc_rtoken_delete(lgr, llc->rkey[i]))
if (smc_rtoken_delete(smc_get_lgr(link), llc->rkey[i]))
err_mask |= 1 << (SMC_LLC_DEL_RKEY_MAX - 1 - i);
}
@@ -583,12 +572,10 @@ static void smc_llc_testlink_work(struct work_struct *work)
struct smc_link *link = container_of(to_delayed_work(work),
struct smc_link, llc_testlink_wrk);
unsigned long next_interval;
struct smc_link_group *lgr;
unsigned long expire_time;
u8 user_data[16] = { 0 };
int rc;
lgr = container_of(link, struct smc_link_group, lnk[SMC_SINGLE_LINK]);
if (link->state != SMC_LNK_ACTIVE)
return; /* don't reschedule worker */
expire_time = link->wr_rx_tstamp + link->llc_testlink_time;
@@ -602,7 +589,7 @@ static void smc_llc_testlink_work(struct work_struct *work)
rc = wait_for_completion_interruptible_timeout(&link->llc_testlink_resp,
SMC_LLC_WAIT_TIME);
if (rc <= 0) {
smc_lgr_terminate(lgr);
smc_lgr_terminate(smc_get_lgr(link));
return;
}
next_interval = link->llc_testlink_time;
@@ -613,8 +600,7 @@ out:
int smc_llc_link_init(struct smc_link *link)
{
struct smc_link_group *lgr = container_of(link, struct smc_link_group,
lnk[SMC_SINGLE_LINK]);
struct smc_link_group *lgr = smc_get_lgr(link);
link->llc_wq = alloc_ordered_workqueue("llc_wq-%x:%x)", WQ_MEM_RECLAIM,
*((u32 *)lgr->id),
link->link_id);