From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Shahaf Shuler <shahafs@mellanox.com>
Cc: dev@dpdk.org, Xueming Li <xuemingl@mellanox.com>
Subject: [dpdk-dev] [PATCH v4 03/10] net/mlx5: drop useless support for several Verbs ports
Date: Thu, 5 Jul 2018 10:45:29 +0200 [thread overview]
Message-ID: <20180705083934.5535-4-adrien.mazarguil@6wind.com> (raw)
In-Reply-To: <20180705083934.5535-1-adrien.mazarguil@6wind.com>
Unlike mlx4 from which this capability was inherited, mlx5 devices expose
exactly one Verbs port per PCI bus address. Each physical port gets
assigned its own bus address with a single Verbs port.
While harmless, this code requires an extra loop that would get in the way
of subsequent refactoring.
No functional impact.
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Cc: Shahaf Shuler <shahafs@mellanox.com>
Cc: Xueming Li <xuemingl@mellanox.com>
--
v3 changes:
This patch was not present in prior revisions. As discussed [1], it was
added after finally deciding to remove this support.
[1] https://mails.dpdk.org/archives/dev/2018-June/105661.html
---
drivers/net/mlx5/mlx5.c | 96 +++++++++++++------------------------
drivers/net/mlx5/mlx5.h | 1 -
drivers/net/mlx5/mlx5_ethdev.c | 2 +-
drivers/net/mlx5/mlx5_txq.c | 2 +-
4 files changed, 34 insertions(+), 67 deletions(-)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 4e7f29f5b..717d8b268 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -652,11 +652,13 @@ static int
mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev)
{
- struct ibv_device **list = NULL;
- struct ibv_device *ibv_dev;
+ struct ibv_device **list;
struct ibv_context *ctx = NULL;
struct ibv_device_attr_ex attr;
+ struct ibv_pd *pd = NULL;
struct mlx5dv_context dv_attr = { .comp_mask = 0 };
+ struct rte_eth_dev *eth_dev = NULL;
+ struct priv *priv = NULL;
int err = 0;
unsigned int vf = 0;
unsigned int mps;
@@ -719,6 +721,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
err = rte_errno;
break;
}
+ mlx5_glue->free_device_list(list);
if (ctx == NULL) {
switch (err) {
case 0:
@@ -733,7 +736,6 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
}
goto error;
}
- ibv_dev = list[i];
DRV_LOG(DEBUG, "device opened");
#ifdef HAVE_IBV_MLX5_MOD_SWP
dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
@@ -827,15 +829,9 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
DEBUG("ibv_query_device_ex() failed");
goto error;
}
- DRV_LOG(INFO, "%u port(s) detected", attr.orig_attr.phys_port_cnt);
- for (i = 0; i < attr.orig_attr.phys_port_cnt; i++) {
+ {
char name[RTE_ETH_NAME_MAX_LEN];
- int len;
- uint32_t port = i + 1; /* ports are indexed from one */
struct ibv_port_attr port_attr;
- struct ibv_pd *pd = NULL;
- struct priv *priv = NULL;
- struct rte_eth_dev *eth_dev = NULL;
struct ether_addr mac;
struct mlx5_dev_config config = {
.cqe_comp = cqe_comp,
@@ -859,11 +855,9 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
},
};
- len = snprintf(name, sizeof(name), PCI_PRI_FMT,
+ snprintf(name, sizeof(name), PCI_PRI_FMT,
pci_dev->addr.domain, pci_dev->addr.bus,
pci_dev->addr.devid, pci_dev->addr.function);
- if (attr.orig_attr.phys_port_cnt > 1)
- snprintf(name + len, sizeof(name), " port %u", i);
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
eth_dev = rte_eth_dev_attach_secondary(name);
if (eth_dev == NULL) {
@@ -901,31 +895,22 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
eth_dev->tx_pkt_burst =
mlx5_select_tx_function(eth_dev);
rte_eth_dev_probing_finish(eth_dev);
- continue;
- }
- DRV_LOG(DEBUG, "using port %u", port);
- if (!ctx)
- ctx = mlx5_glue->open_device(ibv_dev);
- if (ctx == NULL) {
- err = ENODEV;
- goto port_error;
+ claim_zero(mlx5_glue->close_device(ctx));
+ return 0;
}
/* Check port status. */
- err = mlx5_glue->query_port(ctx, port, &port_attr);
+ err = mlx5_glue->query_port(ctx, 1, &port_attr);
if (err) {
DRV_LOG(ERR, "port query failed: %s", strerror(err));
- goto port_error;
+ goto error;
}
if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
- DRV_LOG(ERR,
- "port %d is not configured in Ethernet mode",
- port);
+ DRV_LOG(ERR, "port is not configured in Ethernet mode");
err = EINVAL;
- goto port_error;
+ goto error;
}
if (port_attr.state != IBV_PORT_ACTIVE)
- DRV_LOG(DEBUG, "port %d is not active: \"%s\" (%d)",
- port,
+ DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
mlx5_glue->port_state_str(port_attr.state),
port_attr.state);
/* Allocate protection domain. */
@@ -933,7 +918,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
if (pd == NULL) {
DRV_LOG(ERR, "PD allocation failure");
err = ENOMEM;
- goto port_error;
+ goto error;
}
/* from rte_ethdev.c */
priv = rte_zmalloc("ethdev private structure",
@@ -942,13 +927,12 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
if (priv == NULL) {
DRV_LOG(ERR, "priv allocation failure");
err = ENOMEM;
- goto port_error;
+ goto error;
}
priv->ctx = ctx;
strncpy(priv->ibdev_path, priv->ctx->device->ibdev_path,
sizeof(priv->ibdev_path));
priv->device_attr = attr;
- priv->port = port;
priv->pd = pd;
priv->mtu = ETHER_MTU;
err = mlx5_args(&config, pci_dev->device.devargs);
@@ -956,7 +940,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
err = rte_errno;
DRV_LOG(ERR, "failed to process device arguments: %s",
strerror(rte_errno));
- goto port_error;
+ goto error;
}
config.hw_csum = !!(attr.device_cap_flags_ex &
IBV_DEVICE_RAW_IP_CSUM);
@@ -1006,7 +990,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
"multi-packet send not supported on this device"
" (" MLX5_TXQ_MPW_EN ")");
err = ENOTSUP;
- goto port_error;
+ goto error;
}
DRV_LOG(INFO, "%s MPS is %s",
config.mps == MLX5_MPW_ENHANCED ? "enhanced " : "",
@@ -1038,7 +1022,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
if (eth_dev == NULL) {
DRV_LOG(ERR, "can not allocate rte ethdev");
err = ENOMEM;
- goto port_error;
+ goto error;
}
eth_dev->data->dev_private = priv;
priv->dev_data = eth_dev->data;
@@ -1049,7 +1033,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
err = mlx5_uar_init_primary(eth_dev);
if (err) {
err = rte_errno;
- goto port_error;
+ goto error;
}
/* Configure the first MAC address by default. */
if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
@@ -1058,7 +1042,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
" loaded? (errno: %s)",
eth_dev->data->port_id, strerror(rte_errno));
err = ENODEV;
- goto port_error;
+ goto error;
}
DRV_LOG(INFO,
"port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
@@ -1082,7 +1066,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
err = mlx5_get_mtu(eth_dev, &priv->mtu);
if (err) {
err = rte_errno;
- goto port_error;
+ goto error;
}
DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
priv->mtu);
@@ -1131,7 +1115,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
DRV_LOG(ERR, "port %u drop queue allocation failed: %s",
eth_dev->data->port_id, strerror(rte_errno));
err = rte_errno;
- goto port_error;
+ goto error;
}
/* Supported Verbs flow priority number detection. */
if (verb_priorities == 0)
@@ -1140,7 +1124,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
DRV_LOG(ERR, "port %u wrong Verbs flow priorities: %u",
eth_dev->data->port_id, verb_priorities);
err = ENOTSUP;
- goto port_error;
+ goto error;
}
priv->config.max_verbs_prio = verb_priorities;
/*
@@ -1154,7 +1138,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
eth_dev->device->numa_node);
if (err) {
err = rte_errno;
- goto port_error;
+ goto error;
}
/* Add device to memory callback list. */
rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
@@ -1162,33 +1146,17 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
priv, mem_event_cb);
rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
rte_eth_dev_probing_finish(eth_dev);
- /*
- * Each eth_dev instance is assigned its own Verbs context,
- * since this one is consumed, let the next iteration open
- * another.
- */
- ctx = NULL;
- continue;
-port_error:
- if (priv)
- rte_free(priv);
- if (pd)
- claim_zero(mlx5_glue->dealloc_pd(pd));
- if (eth_dev && rte_eal_process_type() == RTE_PROC_PRIMARY)
- rte_eth_dev_release_port(eth_dev);
- break;
+ return 0;
}
- /*
- * XXX if something went wrong in the loop above, there is a resource
- * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
- * long as the dpdk does not provide a way to deallocate a ethdev and a
- * way to enumerate the registered ethdevs to free the previous ones.
- */
error:
+ if (priv)
+ rte_free(priv);
+ if (pd)
+ claim_zero(mlx5_glue->dealloc_pd(pd));
+ if (eth_dev)
+ rte_eth_dev_release_port(eth_dev);
if (ctx)
claim_zero(mlx5_glue->close_device(ctx));
- if (list)
- mlx5_glue->free_device_list(list);
if (err) {
rte_errno = err;
return -rte_errno;
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 997b04a33..f55ff4a21 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -159,7 +159,6 @@ struct priv {
unsigned int vlan_filter_n; /* Number of configured VLAN filters. */
/* Device properties. */
uint16_t mtu; /* Configured MTU. */
- uint8_t port; /* Physical port number. */
unsigned int isolated:1; /* Whether isolated mode is enabled. */
/* RX/TX queues. */
unsigned int rxqs_n; /* RX queues array size. */
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index ebe5cb6e3..819f5baad 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -166,7 +166,7 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE])
if (dev_port == dev_port_prev)
goto try_dev_id;
dev_port_prev = dev_port;
- if (dev_port == (priv->port - 1u))
+ if (dev_port == 0)
strlcpy(match, name, sizeof(match));
}
closedir(dir);
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 669b91319..5057561ae 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -434,7 +434,7 @@ mlx5_txq_ibv_new(struct rte_eth_dev *dev, uint16_t idx)
/* Move the QP to this state. */
.qp_state = IBV_QPS_INIT,
/* Primary port number. */
- .port_num = priv->port
+ .port_num = 1,
};
ret = mlx5_glue->modify_qp(tmpl.qp, &attr.mod,
(IBV_QP_STATE | IBV_QP_PORT));
--
2.11.0
next prev parent reply other threads:[~2018-07-05 8:45 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-25 16:35 [dpdk-dev] [PATCH 0/7] net/mlx5: add port representor support Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 1/7] net/mlx5: rename confusing object in probe code Adrien Mazarguil
2018-06-10 11:00 ` Xueming(Steven) Li
2018-06-12 13:19 ` Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 2/7] net/mlx5: remove redundant objects " Adrien Mazarguil
2018-06-10 11:00 ` Xueming(Steven) Li
2018-06-12 13:19 ` Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 3/7] net/mlx5: split PCI from generic probing code Adrien Mazarguil
2018-06-10 12:59 ` Xueming(Steven) Li
2018-06-12 13:20 ` Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 4/7] net/mlx5: re-indent generic probing function Adrien Mazarguil
2018-06-11 11:42 ` Xueming(Steven) Li
2018-05-25 16:35 ` [dpdk-dev] [PATCH 5/7] net/mlx5: add port representor awareness Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 6/7] net/mlx5: probe all port representors Adrien Mazarguil
2018-06-12 6:42 ` Xueming(Steven) Li
2018-06-12 13:20 ` Adrien Mazarguil
2018-05-25 16:35 ` [dpdk-dev] [PATCH 7/7] net/mlx5: add parameter for " Adrien Mazarguil
2018-06-12 8:02 ` Xueming(Steven) Li
2018-06-12 13:20 ` Adrien Mazarguil
2018-06-12 13:43 ` Xueming(Steven) Li
2018-06-14 8:01 ` Adrien Mazarguil
2018-06-12 14:44 ` Xueming(Steven) Li
2018-06-13 13:11 ` Adrien Mazarguil
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 0/7] net/mlx5: add port representor support Adrien Mazarguil
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 1/7] net/mlx5: rename confusing object in probe code Adrien Mazarguil
2018-06-16 8:24 ` Xueming(Steven) Li
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 2/7] net/mlx5: remove redundant objects " Adrien Mazarguil
2018-06-16 8:27 ` Xueming(Steven) Li
2018-06-17 10:14 ` Shahaf Shuler
2018-06-27 13:30 ` Adrien Mazarguil
2018-06-28 5:35 ` Shahaf Shuler
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 3/7] net/mlx5: split PCI from generic probing code Adrien Mazarguil
2018-06-16 8:29 ` Xueming(Steven) Li
2018-06-17 10:14 ` Shahaf Shuler
2018-06-27 13:31 ` Adrien Mazarguil
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 4/7] net/mlx5: re-indent generic probing function Adrien Mazarguil
2018-06-14 8:34 ` [dpdk-dev] [PATCH v2 5/7] net/mlx5: add port representor awareness Adrien Mazarguil
2018-06-16 8:37 ` Xueming(Steven) Li
2018-06-27 13:32 ` Adrien Mazarguil
2018-06-14 8:35 ` [dpdk-dev] [PATCH v2 6/7] net/mlx5: probe all port representors Adrien Mazarguil
2018-06-16 8:57 ` Xueming(Steven) Li
2018-06-17 10:15 ` Shahaf Shuler
2018-06-24 13:33 ` Shahaf Shuler
2018-06-27 13:32 ` Adrien Mazarguil
2018-06-28 5:57 ` Shahaf Shuler
2018-06-28 9:13 ` Adrien Mazarguil
2018-06-27 13:32 ` Adrien Mazarguil
2018-06-27 17:30 ` Xueming(Steven) Li
2018-06-28 6:01 ` Shahaf Shuler
2018-06-28 8:45 ` Adrien Mazarguil
2018-06-28 9:06 ` Shahaf Shuler
2018-06-27 13:32 ` Adrien Mazarguil
2018-06-14 8:35 ` [dpdk-dev] [PATCH v2 7/7] net/mlx5: add parameter for " Adrien Mazarguil
2018-06-16 8:59 ` Xueming(Steven) Li
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 00/10] net/mlx5: add port representor support Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 01/10] net/mlx5: rename confusing object in probe code Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 02/10] net/mlx5: remove redundant objects " Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 03/10] net/mlx5: drop useless support for several Verbs ports Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 04/10] net/mlx5: split PCI from generic probing code Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 05/10] net/mlx5: re-indent generic probing function Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 06/10] net/mlx5: add port representor awareness Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 07/10] net/mlx5: probe all port representors Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 08/10] net/mlx5: probe port representors in natural order Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 09/10] net/mlx5: add parameter for port representors Adrien Mazarguil
2018-07-04 17:27 ` [dpdk-dev] [PATCH v3 10/10] net/mlx5: support negative identifiers " Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 00/10] net/mlx5: add port representor support Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 01/10] net/mlx5: rename confusing object in probe code Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 02/10] net/mlx5: remove redundant objects " Adrien Mazarguil
2018-07-05 8:45 ` Adrien Mazarguil [this message]
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 04/10] net/mlx5: split PCI from generic probing code Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 05/10] net/mlx5: re-indent generic probing function Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 06/10] net/mlx5: add port representor awareness Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 07/10] net/mlx5: probe all port representors Adrien Mazarguil
2018-07-09 11:57 ` Shahaf Shuler
2018-07-10 9:37 ` Adrien Mazarguil
2018-07-10 10:13 ` Shahaf Shuler
2018-07-10 10:58 ` Adrien Mazarguil
2018-07-10 11:17 ` Shahaf Shuler
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 08/10] net/mlx5: probe port representors in natural order Adrien Mazarguil
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 09/10] net/mlx5: add parameter for port representors Adrien Mazarguil
2018-07-09 11:57 ` Shahaf Shuler
2018-07-10 9:37 ` Adrien Mazarguil
2018-07-10 10:16 ` Shahaf Shuler
2018-07-10 10:58 ` Adrien Mazarguil
2018-07-10 11:15 ` Shahaf Shuler
2018-07-05 8:45 ` [dpdk-dev] [PATCH v4 10/10] net/mlx5: support negative identifiers " Adrien Mazarguil
2018-07-09 11:58 ` Shahaf Shuler
2018-07-10 9:37 ` Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 00/10] net/mlx5: add port representor support Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 01/10] net/mlx5: rename confusing object in probe code Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 02/10] net/mlx5: remove redundant objects " Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 03/10] net/mlx5: drop useless support for several Verbs ports Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 04/10] net/mlx5: split PCI from generic probing code Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 05/10] net/mlx5: re-indent generic probing function Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 06/10] net/mlx5: add port representor awareness Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 07/10] net/mlx5: probe all port representors Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 08/10] net/mlx5: probe port representors in natural order Adrien Mazarguil
2018-07-10 16:04 ` [dpdk-dev] [PATCH v5 09/10] net/mlx5: add parameter for port representors Adrien Mazarguil
2018-07-10 16:05 ` [dpdk-dev] [PATCH v5 10/10] net/mlx5: support negative identifiers " Adrien Mazarguil
2018-07-12 7:51 ` [dpdk-dev] [PATCH v5 00/10] net/mlx5: add port representor support Shahaf Shuler
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