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Message-Id: <1462584631-5388-7-git-send-email-jsimmons@infradead.org>
Date: Fri, 6 May 2016 21:30:27 -0400
From: James Simmons <jsimmons@...radead.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org,
Andreas Dilger <andreas.dilger@...el.com>,
Oleg Drokin <oleg.drokin@...el.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Lustre Development List <lustre-devel@...ts.lustre.org>,
Amir Shehata <amir.shehata@...el.com>,
James Simmons <uja.ornl@...oo.com>,
James Simmons <jsimmons@...radead.org>
Subject: [PATCH 06/10] staging: lustre: o2iblnd: use data in lnet_ni_t instead of kiblnd_tunables
From: Amir Shehata <amir.shehata@...el.com>
Currently the ko2iblnd creates a kib_tunable_t stucture
to allow the ko2iblnd driver to access the module parameters
throught the code. Some of those data fields also exist
in lnet_ni_t. Migrate to using the lnet_ni_t data fields
instead of kib_tunable_t.
Signed-off-by: Amir Shehata <amir.shehata@...el.com>
Signed-off-by: James Simmons <uja.ornl@...oo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101
Reviewed-on: http://review.whamcloud.com/16367
Reviewed-by: Doug Oucharek <doug.s.oucharek@...el.com>
Reviewed-by: Olaf Weber <olaf@....com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
Signed-off-by: James Simmons <jsimmons@...radead.org>
---
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c | 8 +--
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 6 +--
.../lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c | 54 +++++++++++--------
3 files changed, 34 insertions(+), 34 deletions(-)
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index a06689b..84a15d4 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -336,7 +336,7 @@ int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
peer->ibp_error = 0;
peer->ibp_last_alive = 0;
peer->ibp_max_frags = kiblnd_cfg_rdma_frags(peer->ibp_ni);
- peer->ibp_queue_depth = *kiblnd_tunables.kib_peertxcredits;
+ peer->ibp_queue_depth = ni->ni_peertxcredits;
atomic_set(&peer->ibp_refcount, 1); /* 1 ref for caller */
INIT_LIST_HEAD(&peer->ibp_list); /* not in the peer table yet */
@@ -2921,13 +2921,9 @@ static int kiblnd_startup(lnet_ni_t *ni)
net->ibn_incarnation = tv.tv_sec * USEC_PER_SEC +
tv.tv_nsec / NSEC_PER_USEC;
- rc = kiblnd_tunables_setup();
+ rc = kiblnd_tunables_setup(ni);
if (rc)
goto net_failed;
- ni->ni_peertimeout = *kiblnd_tunables.kib_peertimeout;
- ni->ni_maxtxcredits = *kiblnd_tunables.kib_credits;
- ni->ni_peertxcredits = *kiblnd_tunables.kib_peertxcredits;
- ni->ni_peerrtrcredits = *kiblnd_tunables.kib_peerrtrcredits;
if (ni->ni_interfaces[0]) {
/* Use the IPoIB interface specified in 'networks=' */
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
index 80e11bc..fffae0c 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
@@ -87,11 +87,7 @@ typedef struct {
int *kib_timeout; /* comms timeout (seconds) */
int *kib_keepalive; /* keepalive timeout (seconds) */
int *kib_ntx; /* # tx descs */
- int *kib_credits; /* # concurrent sends */
- int *kib_peertxcredits; /* # concurrent sends to 1 peer */
- int *kib_peerrtrcredits; /* # per-peer router buffer credits */
int *kib_peercredits_hiw; /* # when eagerly to return credits */
- int *kib_peertimeout; /* seconds to consider peer dead */
char **kib_default_ipif; /* default IPoIB interface */
int *kib_retry_count;
int *kib_rnr_retry_count;
@@ -994,7 +990,7 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx,
kib_fmr_t *fmr);
void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status);
-int kiblnd_tunables_setup(void);
+int kiblnd_tunables_setup(struct lnet_ni *ni);
void kiblnd_tunables_init(void);
void kiblnd_tunables_fini(void);
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
index cc1469d..e50a9cf 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
@@ -152,11 +152,7 @@ kib_tunables_t kiblnd_tunables = {
.kib_timeout = &timeout,
.kib_keepalive = &keepalive,
.kib_ntx = &ntx,
- .kib_credits = &credits,
- .kib_peertxcredits = &peer_credits,
.kib_peercredits_hiw = &peer_credits_hiw,
- .kib_peerrtrcredits = &peer_buffer_credits,
- .kib_peertimeout = &peer_timeout,
.kib_default_ipif = &ipif_name,
.kib_retry_count = &retry_count,
.kib_rnr_retry_count = &rnr_retry_count,
@@ -184,7 +180,7 @@ int kiblnd_msg_queue_size(int version, lnet_ni_t *ni)
return peer_credits;
}
-int kiblnd_tunables_setup(void)
+int kiblnd_tunables_setup(struct lnet_ni *ni)
{
if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) {
CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n",
@@ -192,20 +188,32 @@ int kiblnd_tunables_setup(void)
return -EINVAL;
}
- if (*kiblnd_tunables.kib_peertxcredits < IBLND_CREDITS_DEFAULT)
- *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_DEFAULT;
+ if (!ni->ni_peertimeout)
+ ni->ni_peertimeout = peer_timeout;
- if (*kiblnd_tunables.kib_peertxcredits > IBLND_CREDITS_MAX)
- *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_MAX;
+ if (!ni->ni_maxtxcredits)
+ ni->ni_maxtxcredits = credits;
- if (*kiblnd_tunables.kib_peertxcredits > *kiblnd_tunables.kib_credits)
- *kiblnd_tunables.kib_peertxcredits = *kiblnd_tunables.kib_credits;
+ if (!ni->ni_peertxcredits)
+ ni->ni_peertxcredits = peer_credits;
- if (*kiblnd_tunables.kib_peercredits_hiw < *kiblnd_tunables.kib_peertxcredits / 2)
- *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits / 2;
+ if (!ni->ni_peerrtrcredits)
+ ni->ni_peerrtrcredits = peer_buffer_credits;
- if (*kiblnd_tunables.kib_peercredits_hiw >= *kiblnd_tunables.kib_peertxcredits)
- *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits - 1;
+ if (ni->ni_peertxcredits < IBLND_CREDITS_DEFAULT)
+ ni->ni_peertxcredits = IBLND_CREDITS_DEFAULT;
+
+ if (ni->ni_peertxcredits > IBLND_CREDITS_MAX)
+ ni->ni_peertxcredits = IBLND_CREDITS_MAX;
+
+ if (ni->ni_peertxcredits > credits)
+ ni->ni_peertxcredits = credits;
+
+ if (*kiblnd_tunables.kib_peercredits_hiw < ni->ni_peertxcredits / 2)
+ *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits / 2;
+
+ if (*kiblnd_tunables.kib_peercredits_hiw >= ni->ni_peertxcredits)
+ *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits - 1;
if (*kiblnd_tunables.kib_map_on_demand < 0 ||
*kiblnd_tunables.kib_map_on_demand > IBLND_MAX_RDMA_FRAGS)
@@ -217,20 +225,20 @@ int kiblnd_tunables_setup(void)
if (!*kiblnd_tunables.kib_concurrent_sends) {
if (*kiblnd_tunables.kib_map_on_demand > 0 &&
*kiblnd_tunables.kib_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8)
- *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits) * 2;
+ *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2;
else
- *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits);
+ *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits;
}
- if (*kiblnd_tunables.kib_concurrent_sends > *kiblnd_tunables.kib_peertxcredits * 2)
- *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits * 2;
+ if (*kiblnd_tunables.kib_concurrent_sends > ni->ni_peertxcredits * 2)
+ *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2;
- if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits / 2)
- *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits / 2;
+ if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits / 2)
+ *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits / 2;
- if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits) {
+ if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits) {
CWARN("Concurrent sends %d is lower than message queue size: %d, performance may drop slightly.\n",
- *kiblnd_tunables.kib_concurrent_sends, *kiblnd_tunables.kib_peertxcredits);
+ *kiblnd_tunables.kib_concurrent_sends, ni->ni_peertxcredits);
}
return 0;
--
1.7.1
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