* [dpdk-dev] [PATCH v3 1/8] lib/librte_ether: support device reset
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 2/8] lib/librte_ether: defind RX/TX lock mode Zhe Tao
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Add an API to reset the device.
It's for VF device in this scenario, kernel PF + DPDK VF.
When the PF port down/up, APP should call this API to
reset VF port. Most likely, APP should call it in its
management thread and guarantee the thread safe.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
lib/librte_ether/rte_ethdev.c | 17 +++++++++++++++++
lib/librte_ether/rte_ethdev.h | 14 ++++++++++++++
lib/librte_ether/rte_ether_version.map | 7 +++++++
3 files changed, 38 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index e148028..e43dca9 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -3346,3 +3346,20 @@ rte_eth_dev_l2_tunnel_offload_set(uint8_t port_id,
-ENOTSUP);
return (*dev->dev_ops->l2_tunnel_offload_set)(dev, l2_tunnel, mask, en);
}
+
+int
+rte_eth_dev_reset(uint8_t port_id)
+{
+ struct rte_eth_dev *dev;
+ int diag;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
+
+ dev = &rte_eth_devices[port_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_reset, -ENOTSUP);
+
+ diag = (*dev->dev_ops->dev_reset)(dev);
+
+ return diag;
+}
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 2757510..74e895f 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1318,6 +1318,9 @@ typedef int (*eth_l2_tunnel_offload_set_t)
uint8_t en);
/**< @internal enable/disable the l2 tunnel offload functions */
+typedef int (*eth_dev_reset_t)(struct rte_eth_dev *dev);
+/**< @internal Function used to reset a configured Ethernet device. */
+
#ifdef RTE_NIC_BYPASS
enum {
@@ -1508,6 +1511,8 @@ struct eth_dev_ops {
eth_l2_tunnel_eth_type_conf_t l2_tunnel_eth_type_conf;
/** Enable/disable l2 tunnel offload functions */
eth_l2_tunnel_offload_set_t l2_tunnel_offload_set;
+ /** Reset device. */
+ eth_dev_reset_t dev_reset;
};
/**
@@ -4253,6 +4258,15 @@ rte_eth_dev_l2_tunnel_offload_set(uint8_t port_id,
uint32_t mask,
uint8_t en);
+/**
+ * Reset an Ethernet device.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ */
+int
+rte_eth_dev_reset(uint8_t port_id);
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
index 214ecc7..c34207e 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -132,3 +132,10 @@ DPDK_16.04 {
rte_eth_tx_buffer_set_err_callback;
} DPDK_2.2;
+
+DPDK_16.07 {
+ global:
+
+ rte_eth_dev_reset;
+
+} DPDK_16.04;
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 2/8] lib/librte_ether: defind RX/TX lock mode
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 1/8] lib/librte_ether: support device reset Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 3/8] ixgbe: RX/TX with lock on VF Zhe Tao
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Define lock mode for RX/TX queue. Because when resetting
the device we want the resetting thread to get the lock
of the RX/TX queue to make sure the RX/TX is stopped.
Using next ABI macro for this ABI change as it has too
much impact. 7 APIs and 1 global variable are impacted.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Signed-off-by: Zhe Tao <zhe.tao@intel.com>
---
lib/librte_ether/rte_ethdev.h | 62 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 74e895f..4efb5e9 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -354,7 +354,12 @@ struct rte_eth_rxmode {
jumbo_frame : 1, /**< Jumbo Frame Receipt enable. */
hw_strip_crc : 1, /**< Enable CRC stripping by hardware. */
enable_scatter : 1, /**< Enable scatter packets rx handler */
+#ifndef RTE_NEXT_ABI
enable_lro : 1; /**< Enable LRO */
+#else
+ enable_lro : 1, /**< Enable LRO */
+ lock_mode : 1; /**< Using lock path */
+#endif
};
/**
@@ -634,11 +639,68 @@ struct rte_eth_txmode {
/**< If set, reject sending out tagged pkts */
hw_vlan_reject_untagged : 1,
/**< If set, reject sending out untagged pkts */
+#ifndef RTE_NEXT_ABI
hw_vlan_insert_pvid : 1;
/**< If set, enable port based VLAN insertion */
+#else
+ hw_vlan_insert_pvid : 1,
+ /**< If set, enable port based VLAN insertion */
+ lock_mode : 1;
+ /**< If set, using lock path */
+#endif
};
/**
+ * The macros for the RX/TX lock mode functions
+ */
+#ifdef RTE_NEXT_ABI
+#define RX_LOCK_FUNCTION(dev, func) \
+ (dev->data->dev_conf.rxmode.lock_mode ? \
+ func ## _lock : func)
+
+#define TX_LOCK_FUNCTION(dev, func) \
+ (dev->data->dev_conf.txmode.lock_mode ? \
+ func ## _lock : func)
+#else
+#define RX_LOCK_FUNCTION(dev, func) func
+
+#define TX_LOCK_FUNCTION(dev, func) func
+#endif
+
+/* Add the lock RX/TX function for VF reset */
+#define GENERATE_RX_LOCK(func, nic) \
+uint16_t func ## _lock(void *rx_queue, \
+ struct rte_mbuf **rx_pkts, \
+ uint16_t nb_pkts) \
+{ \
+ struct nic ## _rx_queue *rxq = rx_queue; \
+ uint16_t nb_rx = 0; \
+ \
+ if (rte_spinlock_trylock(&rxq->rx_lock)) { \
+ nb_rx = func(rx_queue, rx_pkts, nb_pkts); \
+ rte_spinlock_unlock(&rxq->rx_lock); \
+ } \
+ \
+ return nb_rx; \
+}
+
+#define GENERATE_TX_LOCK(func, nic) \
+uint16_t func ## _lock(void *tx_queue, \
+ struct rte_mbuf **tx_pkts, \
+ uint16_t nb_pkts) \
+{ \
+ struct nic ## _tx_queue *txq = tx_queue; \
+ uint16_t nb_tx = 0; \
+ \
+ if (rte_spinlock_trylock(&txq->tx_lock)) { \
+ nb_tx = func(tx_queue, tx_pkts, nb_pkts); \
+ rte_spinlock_unlock(&txq->tx_lock); \
+ } \
+ \
+ return nb_tx; \
+}
+
+/**
* A structure used to configure an RX ring of an Ethernet port.
*/
struct rte_eth_rxconf {
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 3/8] ixgbe: RX/TX with lock on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 1/8] lib/librte_ether: support device reset Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 2/8] lib/librte_ether: defind RX/TX lock mode Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 4/8] ixgbe: implement device reset " Zhe Tao
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Add RX/TX paths with lock for VF. It's used when
the function of link reset on VF is needed.
When the lock for RX/TX is added, the RX/TX can be
stopped. Then we have a chance to reset the VF link.
Please be aware there's performence drop if the lock
path is chosen.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 12 +++++--
drivers/net/ixgbe/ixgbe_ethdev.h | 20 +++++++++++
drivers/net/ixgbe/ixgbe_rxtx.c | 74 ++++++++++++++++++++++++++++++++------
drivers/net/ixgbe/ixgbe_rxtx.h | 13 +++++++
drivers/net/ixgbe/ixgbe_rxtx_vec.c | 6 ++++
5 files changed, 112 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 05f4f29..fd2682f 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1325,8 +1325,8 @@ eth_ixgbevf_dev_init(struct rte_eth_dev *eth_dev)
PMD_INIT_FUNC_TRACE();
eth_dev->dev_ops = &ixgbevf_eth_dev_ops;
- eth_dev->rx_pkt_burst = &ixgbe_recv_pkts;
- eth_dev->tx_pkt_burst = &ixgbe_xmit_pkts;
+ eth_dev->rx_pkt_burst = RX_LOCK_FUNCTION(eth_dev, ixgbe_recv_pkts);
+ eth_dev->tx_pkt_burst = TX_LOCK_FUNCTION(eth_dev, ixgbe_xmit_pkts);
/* for secondary processes, we don't initialise any further as primary
* has already done this work. Only check we don't need a different
@@ -3012,7 +3012,15 @@ ixgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev)
if (dev->rx_pkt_burst == ixgbe_recv_pkts ||
dev->rx_pkt_burst == ixgbe_recv_pkts_lro_single_alloc ||
dev->rx_pkt_burst == ixgbe_recv_pkts_lro_bulk_alloc ||
+#ifndef RTE_NEXT_ABI
dev->rx_pkt_burst == ixgbe_recv_pkts_bulk_alloc)
+#else
+ dev->rx_pkt_burst == ixgbe_recv_pkts_bulk_alloc ||
+ dev->rx_pkt_burst == ixgbe_recv_pkts_lock ||
+ dev->rx_pkt_burst == ixgbe_recv_pkts_lro_single_alloc_lock ||
+ dev->rx_pkt_burst == ixgbe_recv_pkts_lro_bulk_alloc_lock ||
+ dev->rx_pkt_burst == ixgbe_recv_pkts_bulk_alloc_lock)
+#endif
return ptypes;
return NULL;
}
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
index 4ff6338..701107b 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.h
+++ b/drivers/net/ixgbe/ixgbe_ethdev.h
@@ -390,12 +390,32 @@ uint16_t ixgbe_recv_pkts_lro_single_alloc(void *rx_queue,
uint16_t ixgbe_recv_pkts_lro_bulk_alloc(void *rx_queue,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+uint16_t ixgbe_recv_pkts_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t ixgbe_recv_pkts_bulk_alloc_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t ixgbe_recv_pkts_lro_single_alloc_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t ixgbe_recv_pkts_lro_bulk_alloc_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+
uint16_t ixgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
uint16_t ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+uint16_t ixgbe_xmit_pkts_lock(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+uint16_t ixgbe_xmit_pkts_simple_lock(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+
int ixgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf);
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 9c6eaf2..a45d115 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -353,6 +353,8 @@ ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
return nb_tx;
}
+GENERATE_TX_LOCK(ixgbe_xmit_pkts_simple, ixgbe)
+
static inline void
ixgbe_set_xmit_ctx(struct ixgbe_tx_queue *txq,
volatile struct ixgbe_adv_tx_context_desc *ctx_txd,
@@ -904,6 +906,8 @@ end_of_tx:
return nb_tx;
}
+GENERATE_TX_LOCK(ixgbe_xmit_pkts, ixgbe)
+
/*********************************************************************
*
* RX functions
@@ -1524,6 +1528,8 @@ ixgbe_recv_pkts_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
return nb_rx;
}
+GENERATE_RX_LOCK(ixgbe_recv_pkts_bulk_alloc, ixgbe)
+
uint16_t
ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts)
@@ -1712,6 +1718,8 @@ ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
return nb_rx;
}
+GENERATE_RX_LOCK(ixgbe_recv_pkts, ixgbe)
+
/**
* Detect an RSC descriptor.
*/
@@ -2071,6 +2079,8 @@ ixgbe_recv_pkts_lro_single_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, false);
}
+GENERATE_RX_LOCK(ixgbe_recv_pkts_lro_single_alloc, ixgbe)
+
uint16_t
ixgbe_recv_pkts_lro_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts)
@@ -2078,6 +2088,8 @@ ixgbe_recv_pkts_lro_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, true);
}
+GENERATE_RX_LOCK(ixgbe_recv_pkts_lro_bulk_alloc, ixgbe)
+
/*********************************************************************
*
* Queue management functions
@@ -2186,10 +2198,12 @@ ixgbe_set_tx_function(struct rte_eth_dev *dev, struct ixgbe_tx_queue *txq)
(rte_eal_process_type() != RTE_PROC_PRIMARY ||
ixgbe_txq_vec_setup(txq) == 0)) {
PMD_INIT_LOG(DEBUG, "Vector tx enabled.");
- dev->tx_pkt_burst = ixgbe_xmit_pkts_vec;
+ dev->tx_pkt_burst =
+ TX_LOCK_FUNCTION(dev, ixgbe_xmit_pkts_vec);
} else
#endif
- dev->tx_pkt_burst = ixgbe_xmit_pkts_simple;
+ dev->tx_pkt_burst =
+ TX_LOCK_FUNCTION(dev, ixgbe_xmit_pkts_simple);
} else {
PMD_INIT_LOG(DEBUG, "Using full-featured tx code path");
PMD_INIT_LOG(DEBUG,
@@ -2200,7 +2214,7 @@ ixgbe_set_tx_function(struct rte_eth_dev *dev, struct ixgbe_tx_queue *txq)
" - tx_rs_thresh = %lu " "[RTE_PMD_IXGBE_TX_MAX_BURST=%lu]",
(unsigned long)txq->tx_rs_thresh,
(unsigned long)RTE_PMD_IXGBE_TX_MAX_BURST);
- dev->tx_pkt_burst = ixgbe_xmit_pkts;
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, ixgbe_xmit_pkts);
}
}
@@ -2347,6 +2361,7 @@ ixgbe_dev_tx_queue_setup(struct rte_eth_dev *dev,
txq->txq_flags = tx_conf->txq_flags;
txq->ops = &def_txq_ops;
txq->tx_deferred_start = tx_conf->tx_deferred_start;
+ rte_spinlock_init(&txq->tx_lock);
/*
* Modification to set VFTDT for virtual function if vf is detected
@@ -2625,6 +2640,7 @@ ixgbe_dev_rx_queue_setup(struct rte_eth_dev *dev,
0 : ETHER_CRC_LEN);
rxq->drop_en = rx_conf->rx_drop_en;
rxq->rx_deferred_start = rx_conf->rx_deferred_start;
+ rte_spinlock_init(&rxq->rx_lock);
/*
* The packet type in RX descriptor is different for different NICs.
@@ -4172,11 +4188,15 @@ ixgbe_set_rx_function(struct rte_eth_dev *dev)
if (adapter->rx_bulk_alloc_allowed) {
PMD_INIT_LOG(DEBUG, "LRO is requested. Using a bulk "
"allocation version");
- dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_pkts_lro_bulk_alloc);
} else {
PMD_INIT_LOG(DEBUG, "LRO is requested. Using a single "
"allocation version");
- dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_pkts_lro_single_alloc);
}
} else if (dev->data->scattered_rx) {
/*
@@ -4188,12 +4208,16 @@ ixgbe_set_rx_function(struct rte_eth_dev *dev)
"callback (port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_scattered_pkts_vec;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_scattered_pkts_vec);
} else if (adapter->rx_bulk_alloc_allowed) {
PMD_INIT_LOG(DEBUG, "Using a Scattered with bulk "
"allocation callback (port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_pkts_lro_bulk_alloc);
} else {
PMD_INIT_LOG(DEBUG, "Using Regualr (non-vector, "
"single allocation) "
@@ -4201,7 +4225,9 @@ ixgbe_set_rx_function(struct rte_eth_dev *dev)
"(port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_pkts_lro_single_alloc);
}
/*
* Below we set "simple" callbacks according to port/queues parameters.
@@ -4217,28 +4243,36 @@ ixgbe_set_rx_function(struct rte_eth_dev *dev)
RTE_IXGBE_DESCS_PER_LOOP,
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_pkts_vec;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, ixgbe_recv_pkts_vec);
} else if (adapter->rx_bulk_alloc_allowed) {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
"satisfied. Rx Burst Bulk Alloc function "
"will be used on port=%d.",
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_pkts_bulk_alloc;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ ixgbe_recv_pkts_bulk_alloc);
} else {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are not "
"satisfied, or Scattered Rx is requested "
"(port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = ixgbe_recv_pkts;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, ixgbe_recv_pkts);
}
/* Propagate information about RX function choice through all queues. */
rx_using_sse =
(dev->rx_pkt_burst == ixgbe_recv_scattered_pkts_vec ||
+#ifndef RTE_NEXT_ABI
dev->rx_pkt_burst == ixgbe_recv_pkts_vec);
+#else
+ dev->rx_pkt_burst == ixgbe_recv_pkts_vec ||
+ dev->rx_pkt_burst == ixgbe_recv_scattered_pkts_vec_lock ||
+ dev->rx_pkt_burst == ixgbe_recv_pkts_vec_lock);
+#endif
for (i = 0; i < dev->data->nb_rx_queues; i++) {
struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
@@ -5225,6 +5259,15 @@ ixgbe_recv_pkts_vec(
}
uint16_t __attribute__((weak))
+ixgbe_recv_pkts_vec_lock(
+ void __rte_unused *rx_queue,
+ struct rte_mbuf __rte_unused **rx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
+uint16_t __attribute__((weak))
ixgbe_recv_scattered_pkts_vec(
void __rte_unused *rx_queue,
struct rte_mbuf __rte_unused **rx_pkts,
@@ -5233,6 +5276,15 @@ ixgbe_recv_scattered_pkts_vec(
return 0;
}
+uint16_t __attribute__((weak))
+ixgbe_recv_scattered_pkts_vec_lock(
+ void __rte_unused *rx_queue,
+ struct rte_mbuf __rte_unused **rx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
int __attribute__((weak))
ixgbe_rxq_vec_setup(struct ixgbe_rx_queue __rte_unused *rxq)
{
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.h b/drivers/net/ixgbe/ixgbe_rxtx.h
index 3691a19..5f0ca1f 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.h
+++ b/drivers/net/ixgbe/ixgbe_rxtx.h
@@ -34,6 +34,8 @@
#ifndef _IXGBE_RXTX_H_
#define _IXGBE_RXTX_H_
+#include <rte_spinlock.h>
+
/*
* Rings setup and release.
*
@@ -126,6 +128,7 @@ struct ixgbe_rx_queue {
struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
uint64_t mbuf_initializer; /**< value to init mbufs */
+ rte_spinlock_t rx_lock; /**< Lock for packet receiption. */
uint16_t nb_rx_desc; /**< number of RX descriptors. */
uint16_t rx_tail; /**< current value of RDT register. */
uint16_t nb_rx_hold; /**< number of held free RX desc. */
@@ -212,6 +215,7 @@ struct ixgbe_tx_queue {
struct ixgbe_tx_entry_v *sw_ring_v; /**< address of SW ring for vector PMD */
};
volatile uint32_t *tdt_reg_addr; /**< Address of TDT register. */
+ rte_spinlock_t tx_lock; /**< Lock for packet transmission. */
uint16_t nb_tx_desc; /**< number of TX descriptors. */
uint16_t tx_tail; /**< current value of TDT reg. */
/**< Start freeing TX buffers if there are less free descriptors than
@@ -301,6 +305,12 @@ uint16_t ixgbe_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t ixgbe_recv_scattered_pkts_vec(void *rx_queue,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+uint16_t ixgbe_recv_pkts_vec_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t ixgbe_recv_scattered_pkts_vec_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
int ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev);
int ixgbe_rxq_vec_setup(struct ixgbe_rx_queue *rxq);
void ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq);
@@ -309,6 +319,9 @@ void ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq);
uint16_t ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+uint16_t ixgbe_xmit_pkts_vec_lock(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
int ixgbe_txq_vec_setup(struct ixgbe_tx_queue *txq);
#endif /* RTE_IXGBE_INC_VECTOR */
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec.c b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
index e97ea82..32ecbd2 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
@@ -420,6 +420,8 @@ ixgbe_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
}
+GENERATE_RX_LOCK(ixgbe_recv_pkts_vec, ixgbe)
+
static inline uint16_t
reassemble_packets(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_bufs,
uint16_t nb_bufs, uint8_t *split_flags)
@@ -526,6 +528,8 @@ ixgbe_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
&split_flags[i]);
}
+GENERATE_RX_LOCK(ixgbe_recv_scattered_pkts_vec, ixgbe)
+
static inline void
vtx1(volatile union ixgbe_adv_tx_desc *txdp,
struct rte_mbuf *pkt, uint64_t flags)
@@ -680,6 +684,8 @@ ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
return nb_pkts;
}
+GENERATE_TX_LOCK(ixgbe_xmit_pkts_vec, ixgbe)
+
static void __attribute__((cold))
ixgbe_tx_queue_release_mbufs_vec(struct ixgbe_tx_queue *txq)
{
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 4/8] ixgbe: implement device reset on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (2 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 3/8] ixgbe: RX/TX with lock on VF Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 5/8] igb: RX/TX with lock " Zhe Tao
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Implement the device reset function.
1, Add the fake RX/TX functions.
2, The reset function tries to stop RX/TX by replacing
the RX/TX functions with the fake ones and getting the
locks to make sure the regular RX/TX finished.
3, After the RX/TX stopped, reset the VF port, and then
release the locks and restore the RX/TX functions.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
doc/guides/rel_notes/release_16_07.rst | 9 +++
drivers/net/ixgbe/ixgbe_ethdev.c | 108 ++++++++++++++++++++++++++++++++-
drivers/net/ixgbe/ixgbe_ethdev.h | 12 +++-
drivers/net/ixgbe/ixgbe_rxtx.c | 42 ++++++++++++-
4 files changed, 168 insertions(+), 3 deletions(-)
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index a761e3c..d36c4b1 100644
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -53,6 +53,15 @@ New Features
VF. To handle this link up/down event, add the mailbox interruption
support to receive the message.
+* **Added device reset support for ixgbe VF.**
+
+ Added the device reset API. APP can call this API to reset the VF port
+ when it's not working.
+ Based on the mailbox interruption support, when VF reseives the control
+ message from PF, it means the PF link state changes, VF uses the reset
+ callback in the message handler to notice the APP. APP need call the device
+ reset API to reset the VF port.
+
Resolved Issues
---------------
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index fd2682f..1e3520b 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -381,6 +381,8 @@ static int ixgbe_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
static int ixgbe_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
struct rte_eth_udp_tunnel *udp_tunnel);
+static int ixgbevf_dev_reset(struct rte_eth_dev *dev);
+
/*
* Define VF Stats MACRO for Non "cleared on read" register
*/
@@ -586,6 +588,7 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = {
.reta_query = ixgbe_dev_rss_reta_query,
.rss_hash_update = ixgbe_dev_rss_hash_update,
.rss_hash_conf_get = ixgbe_dev_rss_hash_conf_get,
+ .dev_reset = ixgbevf_dev_reset,
};
/* store statistics names and its offset in stats structure */
@@ -4060,7 +4063,8 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
ETH_VLAN_EXTEND_MASK;
ixgbevf_vlan_offload_set(dev, mask);
- ixgbevf_dev_rxtx_start(dev);
+ if (ixgbevf_dev_rxtx_start(dev))
+ return -1;
/* check and configure queue intr-vector mapping */
if (dev->data->dev_conf.intr_conf.rxq != 0) {
@@ -7193,6 +7197,108 @@ static void ixgbevf_mbx_process(struct rte_eth_dev *dev)
}
static int
+ixgbevf_dev_reset(struct rte_eth_dev *dev)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
+ int diag = 0;
+ uint32_t vteiam;
+ uint16_t i;
+ struct ixgbe_rx_queue *rxq;
+ struct ixgbe_tx_queue *txq;
+
+ /* Nothing needs to be done if the device is not started. */
+ if (!dev->data->dev_started)
+ return 0;
+
+ PMD_DRV_LOG(DEBUG, "Link up/down event detected.");
+
+ /**
+ * Stop RX/TX by fake functions and locks.
+ * Fake functions are used to make RX/TX lock easier.
+ */
+ adapter->rx_backup = dev->rx_pkt_burst;
+ adapter->tx_backup = dev->tx_pkt_burst;
+ dev->rx_pkt_burst = ixgbevf_recv_pkts_fake;
+ dev->tx_pkt_burst = ixgbevf_xmit_pkts_fake;
+
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_lock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_lock(&txq->tx_lock);
+ }
+
+ /* Performance VF reset. */
+ do {
+ dev->data->dev_started = 0;
+ ixgbevf_dev_stop(dev);
+ if (dev->data->dev_conf.intr_conf.lsc == 0)
+ diag = ixgbe_dev_link_update(dev, 0);
+ if (diag) {
+ PMD_INIT_LOG(INFO, "Ixgbe VF reset: "
+ "Failed to update link.");
+ }
+ rte_delay_ms(1000);
+
+ diag = ixgbevf_dev_start(dev);
+ /*If fail to start the device, need to stop/start it again. */
+ if (diag) {
+ PMD_INIT_LOG(ERR, "Ixgbe VF reset: "
+ "Failed to start device.");
+ continue;
+ }
+ dev->data->dev_started = 1;
+ ixgbevf_dev_stats_reset(dev);
+ if (dev->data->dev_conf.intr_conf.lsc == 0)
+ diag = ixgbe_dev_link_update(dev, 0);
+ if (diag) {
+ PMD_INIT_LOG(INFO, "Ixgbe VF reset: "
+ "Failed to update link.");
+ diag = 0;
+ }
+
+ /**
+ * When the PF link is down, there has chance
+ * that VF cannot operate its registers. Will
+ * check if the registers is written
+ * successfully. If not, repeat stop/start until
+ * the PF link is up, in other words, until the
+ * registers can be written.
+ */
+ vteiam = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
+ /* Reference ixgbevf_intr_enable when checking */
+ } while (diag || vteiam != IXGBE_VF_IRQ_ENABLE_MASK);
+
+ /**
+ * Release the locks for queues.
+ * Restore the RX/TX functions.
+ */
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_unlock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_unlock(&txq->tx_lock);
+ }
+
+ dev->rx_pkt_burst = adapter->rx_backup;
+ dev->tx_pkt_burst = adapter->tx_backup;
+
+ return 0;
+}
+
+static int
ixgbevf_dev_interrupt_get_status(struct rte_eth_dev *dev)
{
uint32_t eicr;
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
index 701107b..d50fad4 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.h
+++ b/drivers/net/ixgbe/ixgbe_ethdev.h
@@ -289,6 +289,8 @@ struct ixgbe_adapter {
struct rte_timecounter systime_tc;
struct rte_timecounter rx_tstamp_tc;
struct rte_timecounter tx_tstamp_tc;
+ eth_rx_burst_t rx_backup;
+ eth_tx_burst_t tx_backup;
};
#define IXGBE_DEV_PRIVATE_TO_HW(adapter)\
@@ -377,7 +379,7 @@ int ixgbevf_dev_rx_init(struct rte_eth_dev *dev);
void ixgbevf_dev_tx_init(struct rte_eth_dev *dev);
-void ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev);
+int ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev);
uint16_t ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
@@ -409,6 +411,14 @@ uint16_t ixgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+uint16_t ixgbevf_recv_pkts_fake(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+
+uint16_t ixgbevf_xmit_pkts_fake(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+
uint16_t ixgbe_xmit_pkts_lock(void *tx_queue,
struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index a45d115..b4e7659 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -5181,7 +5181,7 @@ ixgbevf_dev_tx_init(struct rte_eth_dev *dev)
/*
* [VF] Start Transmit and Receive Units.
*/
-void __attribute__((cold))
+int __attribute__((cold))
ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
{
struct ixgbe_hw *hw;
@@ -5218,7 +5218,15 @@ ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
} while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE));
if (!poll_ms)
+#ifndef RTE_NEXT_ABI
PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d", i);
+#else
+ {
+ PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d", i);
+ if (dev->data->dev_conf.txmode.lock_mode)
+ return -1;
+ }
+#endif
}
for (i = 0; i < dev->data->nb_rx_queues; i++) {
@@ -5235,11 +5243,21 @@ ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
} while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
if (!poll_ms)
+#ifndef RTE_NEXT_ABI
+ PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", i);
+#else
+ {
PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", i);
+ if (dev->data->dev_conf.rxmode.lock_mode)
+ return -1;
+ }
+#endif
rte_wmb();
IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), rxq->nb_rx_desc - 1);
}
+
+ return 0;
}
/* Stubs needed for linkage when CONFIG_RTE_IXGBE_INC_VECTOR is set to 'n' */
@@ -5290,3 +5308,25 @@ ixgbe_rxq_vec_setup(struct ixgbe_rx_queue __rte_unused *rxq)
{
return -1;
}
+
+/**
+ * A fake function to stop receiption.
+ */
+uint16_t
+ixgbevf_recv_pkts_fake(void __rte_unused *rx_queue,
+ struct rte_mbuf __rte_unused **rx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
+/**
+ * A fake function to stop transmission.
+ */
+uint16_t
+ixgbevf_xmit_pkts_fake(void __rte_unused *tx_queue,
+ struct rte_mbuf __rte_unused **tx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 5/8] igb: RX/TX with lock on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (3 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 4/8] ixgbe: implement device reset " Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 6/8] igb: implement device reset " Zhe Tao
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Add RX/TX paths with lock for VF. It's used when
the function of link reset on VF is needed.
When the lock for RX/TX is added, the RX/TX can be
stopped. Then we have a chance to reset the VF link.
Please be aware there's performence drop if the lock
path is chosen.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
drivers/net/e1000/e1000_ethdev.h | 10 ++++++++++
drivers/net/e1000/igb_ethdev.c | 14 +++++++++++---
drivers/net/e1000/igb_rxtx.c | 26 +++++++++++++++++++++-----
3 files changed, 42 insertions(+), 8 deletions(-)
diff --git a/drivers/net/e1000/e1000_ethdev.h b/drivers/net/e1000/e1000_ethdev.h
index e8bf8da..6a42994 100644
--- a/drivers/net/e1000/e1000_ethdev.h
+++ b/drivers/net/e1000/e1000_ethdev.h
@@ -319,6 +319,16 @@ uint16_t eth_igb_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
uint16_t eth_igb_recv_scattered_pkts(void *rxq,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+uint16_t eth_igb_xmit_pkts_lock(void *txq,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+uint16_t eth_igb_recv_pkts_lock(void *rxq,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t eth_igb_recv_scattered_pkts_lock(void *rxq,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+
int eth_igb_rss_hash_update(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf);
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index b0e5e6a..8aad741 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -909,15 +909,17 @@ eth_igbvf_dev_init(struct rte_eth_dev *eth_dev)
PMD_INIT_FUNC_TRACE();
eth_dev->dev_ops = &igbvf_eth_dev_ops;
- eth_dev->rx_pkt_burst = ð_igb_recv_pkts;
- eth_dev->tx_pkt_burst = ð_igb_xmit_pkts;
+ eth_dev->rx_pkt_burst = RX_LOCK_FUNCTION(eth_dev, eth_igb_recv_pkts);
+ eth_dev->tx_pkt_burst = TX_LOCK_FUNCTION(eth_dev, eth_igb_xmit_pkts);
/* for secondary processes, we don't initialise any further as primary
* has already done this work. Only check we don't need a different
* RX function */
if (rte_eal_process_type() != RTE_PROC_PRIMARY){
if (eth_dev->data->scattered_rx)
- eth_dev->rx_pkt_burst = ð_igb_recv_scattered_pkts;
+ eth_dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(eth_dev,
+ eth_igb_recv_scattered_pkts);
return 0;
}
@@ -1999,7 +2001,13 @@ eth_igb_supported_ptypes_get(struct rte_eth_dev *dev)
};
if (dev->rx_pkt_burst == eth_igb_recv_pkts ||
+#ifndef RTE_NEXT_ABI
dev->rx_pkt_burst == eth_igb_recv_scattered_pkts)
+#else
+ dev->rx_pkt_burst == eth_igb_recv_scattered_pkts ||
+ dev->rx_pkt_burst == eth_igb_recv_pkts_lock ||
+ dev->rx_pkt_burst == eth_igb_recv_scattered_pkts_lock)
+#endif
return ptypes;
return NULL;
}
diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index 18aeead..7e97330 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -67,6 +67,7 @@
#include <rte_tcp.h>
#include <rte_sctp.h>
#include <rte_string_fns.h>
+#include <rte_spinlock.h>
#include "e1000_logs.h"
#include "base/e1000_api.h"
@@ -107,6 +108,7 @@ struct igb_rx_queue {
struct igb_rx_entry *sw_ring; /**< address of RX software ring. */
struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
+ rte_spinlock_t rx_lock; /**< Lock for packet receiption. */
uint16_t nb_rx_desc; /**< number of RX descriptors. */
uint16_t rx_tail; /**< current value of RDT register. */
uint16_t nb_rx_hold; /**< number of held free RX desc. */
@@ -174,6 +176,7 @@ struct igb_tx_queue {
volatile union e1000_adv_tx_desc *tx_ring; /**< TX ring address */
uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */
struct igb_tx_entry *sw_ring; /**< virtual address of SW ring. */
+ rte_spinlock_t tx_lock; /**< Lock for packet transmission. */
volatile uint32_t *tdt_reg_addr; /**< Address of TDT register. */
uint32_t txd_type; /**< Device-specific TXD type */
uint16_t nb_tx_desc; /**< number of TX descriptors. */
@@ -615,6 +618,8 @@ eth_igb_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
return nb_tx;
}
+GENERATE_TX_LOCK(eth_igb_xmit_pkts, igb)
+
/*********************************************************************
*
* RX functions
@@ -931,6 +936,8 @@ eth_igb_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
return nb_rx;
}
+GENERATE_RX_LOCK(eth_igb_recv_pkts, igb)
+
uint16_t
eth_igb_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts)
@@ -1186,6 +1193,8 @@ eth_igb_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
return nb_rx;
}
+GENERATE_RX_LOCK(eth_igb_recv_scattered_pkts, igb)
+
/*
* Maximum number of Ring Descriptors.
*
@@ -1344,6 +1353,7 @@ eth_igb_tx_queue_setup(struct rte_eth_dev *dev,
txq->reg_idx = (uint16_t)((RTE_ETH_DEV_SRIOV(dev).active == 0) ?
queue_idx : RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx + queue_idx);
txq->port_id = dev->data->port_id;
+ rte_spinlock_init(&txq->tx_lock);
txq->tdt_reg_addr = E1000_PCI_REG_ADDR(hw, E1000_TDT(txq->reg_idx));
txq->tx_ring_phys_addr = rte_mem_phy2mch(tz->memseg_id, tz->phys_addr);
@@ -1361,7 +1371,7 @@ eth_igb_tx_queue_setup(struct rte_eth_dev *dev,
txq->sw_ring, txq->tx_ring, txq->tx_ring_phys_addr);
igb_reset_tx_queue(txq, dev);
- dev->tx_pkt_burst = eth_igb_xmit_pkts;
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, eth_igb_xmit_pkts);
dev->data->tx_queues[queue_idx] = txq;
return 0;
@@ -1467,6 +1477,7 @@ eth_igb_rx_queue_setup(struct rte_eth_dev *dev,
rxq->port_id = dev->data->port_id;
rxq->crc_len = (uint8_t) ((dev->data->dev_conf.rxmode.hw_strip_crc) ? 0 :
ETHER_CRC_LEN);
+ rte_spinlock_init(&rxq->rx_lock);
/*
* Allocate RX ring hardware descriptors. A memzone large enough to
@@ -2323,7 +2334,7 @@ eth_igbvf_rx_init(struct rte_eth_dev *dev)
/* Configure and enable each RX queue. */
rctl_bsize = 0;
- dev->rx_pkt_burst = eth_igb_recv_pkts;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, eth_igb_recv_pkts);
for (i = 0; i < dev->data->nb_rx_queues; i++) {
uint64_t bus_addr;
uint32_t rxdctl;
@@ -2370,7 +2381,9 @@ eth_igbvf_rx_init(struct rte_eth_dev *dev)
if (!dev->data->scattered_rx)
PMD_INIT_LOG(DEBUG,
"forcing scatter mode");
- dev->rx_pkt_burst = eth_igb_recv_scattered_pkts;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ eth_igb_recv_scattered_pkts);
dev->data->scattered_rx = 1;
}
} else {
@@ -2381,7 +2394,9 @@ eth_igbvf_rx_init(struct rte_eth_dev *dev)
rctl_bsize = buf_size;
if (!dev->data->scattered_rx)
PMD_INIT_LOG(DEBUG, "forcing scatter mode");
- dev->rx_pkt_burst = eth_igb_recv_scattered_pkts;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev,
+ eth_igb_recv_scattered_pkts);
dev->data->scattered_rx = 1;
}
@@ -2414,7 +2429,8 @@ eth_igbvf_rx_init(struct rte_eth_dev *dev)
if (dev->data->dev_conf.rxmode.enable_scatter) {
if (!dev->data->scattered_rx)
PMD_INIT_LOG(DEBUG, "forcing scatter mode");
- dev->rx_pkt_burst = eth_igb_recv_scattered_pkts;
+ dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(dev, eth_igb_recv_scattered_pkts);
dev->data->scattered_rx = 1;
}
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 6/8] igb: implement device reset on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (4 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 5/8] igb: RX/TX with lock " Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 7/8] i40e: RX/TX with lock " Zhe Tao
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Implement the device reset function.
1, Add the fake RX/TX functions.
2, The reset function tries to stop RX/TX by replacing
the RX/TX functions with the fake ones and getting the
locks to make sure the regular RX/TX finished.
3, After the RX/TX stopped, reset the VF port, and then
release the locks and restore the RX/TX functions.
BTW: The definition of some structures are moved from .c
file to .h file.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
doc/guides/rel_notes/release_16_07.rst | 2 +-
drivers/net/e1000/e1000_ethdev.h | 116 ++++++++++++++++++++++++++++++
drivers/net/e1000/igb_ethdev.c | 104 +++++++++++++++++++++++++++
drivers/net/e1000/igb_rxtx.c | 128 ++++++---------------------------
4 files changed, 243 insertions(+), 107 deletions(-)
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index d36c4b1..a4c0cc3 100644
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -53,7 +53,7 @@ New Features
VF. To handle this link up/down event, add the mailbox interruption
support to receive the message.
-* **Added device reset support for ixgbe VF.**
+* **Added device reset support for ixgbe/igb VF.**
Added the device reset API. APP can call this API to reset the VF port
when it's not working.
diff --git a/drivers/net/e1000/e1000_ethdev.h b/drivers/net/e1000/e1000_ethdev.h
index 6a42994..4ae03ce 100644
--- a/drivers/net/e1000/e1000_ethdev.h
+++ b/drivers/net/e1000/e1000_ethdev.h
@@ -34,6 +34,7 @@
#ifndef _E1000_ETHDEV_H_
#define _E1000_ETHDEV_H_
#include <rte_time.h>
+#include <rte_spinlock.h>
/* need update link, bit flag */
#define E1000_FLAG_NEED_LINK_UPDATE (uint32_t)(1 << 0)
@@ -261,6 +262,113 @@ struct e1000_adapter {
struct rte_timecounter systime_tc;
struct rte_timecounter rx_tstamp_tc;
struct rte_timecounter tx_tstamp_tc;
+ eth_rx_burst_t rx_backup;
+ eth_tx_burst_t tx_backup;
+};
+
+/**
+ * Structure associated with each descriptor of the RX ring of a RX queue.
+ */
+struct igb_rx_entry {
+ struct rte_mbuf *mbuf; /**< mbuf associated with RX descriptor. */
+};
+
+/**
+ * Structure associated with each descriptor of the TX ring of a TX queue.
+ */
+struct igb_tx_entry {
+ struct rte_mbuf *mbuf; /**< mbuf associated with TX desc, if any. */
+ uint16_t next_id; /**< Index of next descriptor in ring. */
+ uint16_t last_id; /**< Index of last scattered descriptor. */
+};
+
+/**
+ * Hardware context number
+ */
+enum igb_advctx_num {
+ IGB_CTX_0 = 0, /**< CTX0 */
+ IGB_CTX_1 = 1, /**< CTX1 */
+ IGB_CTX_NUM = 2, /**< CTX_NUM */
+};
+
+/** Offload features */
+union igb_tx_offload {
+ uint64_t data;
+ struct {
+ uint64_t l3_len:9; /**< L3 (IP) Header Length. */
+ uint64_t l2_len:7; /**< L2 (MAC) Header Length. */
+ uint64_t vlan_tci:16; /**< VLAN Tag Control Identifier(CPU order). */
+ uint64_t l4_len:8; /**< L4 (TCP/UDP) Header Length. */
+ uint64_t tso_segsz:16; /**< TCP TSO segment size. */
+
+ /* uint64_t unused:8; */
+ };
+};
+
+/**
+ * Strucutre to check if new context need be built
+ */
+struct igb_advctx_info {
+ uint64_t flags; /**< ol_flags related to context build. */
+ /** tx offload: vlan, tso, l2-l3-l4 lengths. */
+ union igb_tx_offload tx_offload;
+ /** compare mask for tx offload. */
+ union igb_tx_offload tx_offload_mask;
+};
+
+/**
+ * Structure associated with each RX queue.
+ */
+struct igb_rx_queue {
+ struct rte_mempool *mb_pool; /**< mbuf pool to populate RX ring. */
+ volatile union e1000_adv_rx_desc *rx_ring; /**< RX ring virtual address. */
+ uint64_t rx_ring_phys_addr; /**< RX ring DMA address. */
+ volatile uint32_t *rdt_reg_addr; /**< RDT register address. */
+ volatile uint32_t *rdh_reg_addr; /**< RDH register address. */
+ struct igb_rx_entry *sw_ring; /**< address of RX software ring. */
+ struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
+ struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
+ rte_spinlock_t rx_lock; /**< Lock for packet receiption. */
+ uint16_t nb_rx_desc; /**< number of RX descriptors. */
+ uint16_t rx_tail; /**< current value of RDT register. */
+ uint16_t nb_rx_hold; /**< number of held free RX desc. */
+ uint16_t rx_free_thresh; /**< max free RX desc to hold. */
+ uint16_t queue_id; /**< RX queue index. */
+ uint16_t reg_idx; /**< RX queue register index. */
+ uint8_t port_id; /**< Device port identifier. */
+ uint8_t pthresh; /**< Prefetch threshold register. */
+ uint8_t hthresh; /**< Host threshold register. */
+ uint8_t wthresh; /**< Write-back threshold register. */
+ uint8_t crc_len; /**< 0 if CRC stripped, 4 otherwise. */
+ uint8_t drop_en; /**< If not 0, set SRRCTL.Drop_En. */
+};
+
+/**
+ * Structure associated with each TX queue.
+ */
+struct igb_tx_queue {
+ volatile union e1000_adv_tx_desc *tx_ring; /**< TX ring address */
+ uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */
+ struct igb_tx_entry *sw_ring; /**< virtual address of SW ring. */
+ volatile uint32_t *tdt_reg_addr; /**< Address of TDT register. */
+ rte_spinlock_t tx_lock; /**< Lock for packet transmission. */
+ uint32_t txd_type; /**< Device-specific TXD type */
+ uint16_t nb_tx_desc; /**< number of TX descriptors. */
+ uint16_t tx_tail; /**< Current value of TDT register. */
+ uint16_t tx_head;
+ /**< Index of first used TX descriptor. */
+ uint16_t queue_id; /**< TX queue index. */
+ uint16_t reg_idx; /**< TX queue register index. */
+ uint8_t port_id; /**< Device port identifier. */
+ uint8_t pthresh; /**< Prefetch threshold register. */
+ uint8_t hthresh; /**< Host threshold register. */
+ uint8_t wthresh; /**< Write-back threshold register. */
+ uint32_t ctx_curr;
+ /**< Current used hardware descriptor. */
+ uint32_t ctx_start;
+ /**< Start context position for transmit queue. */
+ struct igb_advctx_info ctx_cache[IGB_CTX_NUM];
+ /**< Hardware context history.*/
};
#define E1000_DEV_PRIVATE(adapter) \
@@ -316,6 +424,14 @@ uint16_t eth_igb_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts,
uint16_t eth_igb_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
+uint16_t eth_igbvf_xmit_pkts_fake(void *txq,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+
+uint16_t eth_igbvf_recv_pkts_fake(void *rxq,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+
uint16_t eth_igb_recv_scattered_pkts(void *rxq,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 8aad741..4b78a25 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -268,6 +268,7 @@ static void eth_igb_configure_msix_intr(struct rte_eth_dev *dev);
static void eth_igbvf_interrupt_handler(struct rte_intr_handle *handle,
void *param);
static void igbvf_mbx_process(struct rte_eth_dev *dev);
+static int igbvf_dev_reset(struct rte_eth_dev *dev);
/*
* Define VF Stats MACRO for Non "cleared on read" register
@@ -409,6 +410,7 @@ static const struct eth_dev_ops igbvf_eth_dev_ops = {
.mac_addr_set = igbvf_default_mac_addr_set,
.get_reg_length = igbvf_get_reg_length,
.get_reg = igbvf_get_regs,
+ .dev_reset = igbvf_dev_reset,
};
/* store statistics names and its offset in stats structure */
@@ -2663,6 +2665,108 @@ void igbvf_mbx_process(struct rte_eth_dev *dev)
}
static int
+igbvf_dev_reset(struct rte_eth_dev *dev)
+{
+ struct e1000_adapter *adapter =
+ (struct e1000_adapter *)dev->data->dev_private;
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ int diag = 0;
+ uint32_t eiam;
+ uint16_t i;
+ struct igb_rx_queue *rxq;
+ struct igb_tx_queue *txq;
+ /* Reference igbvf_intr_enable */
+ uint32_t eiam_mbx = 1 << E1000_VTIVAR_MISC_MAILBOX;
+
+ /* Nothing needs to be done if the device is not started. */
+ if (!dev->data->dev_started)
+ return 0;
+
+ PMD_DRV_LOG(DEBUG, "Link up/down event detected.");
+
+ /**
+ * Stop RX/TX by fake functions and locks.
+ * Fake functions are used to make RX/TX lock easier.
+ */
+ adapter->rx_backup = dev->rx_pkt_burst;
+ adapter->tx_backup = dev->tx_pkt_burst;
+ dev->rx_pkt_burst = eth_igbvf_recv_pkts_fake;
+ dev->tx_pkt_burst = eth_igbvf_xmit_pkts_fake;
+
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_lock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_lock(&txq->tx_lock);
+ }
+
+ /* Performance VF reset. */
+ do {
+ dev->data->dev_started = 0;
+ igbvf_dev_stop(dev);
+ if (dev->data->dev_conf.intr_conf.lsc == 0)
+ diag = eth_igb_link_update(dev, 0);
+ if (diag) {
+ PMD_INIT_LOG(INFO, "Igb VF reset: "
+ "Failed to update link.");
+ }
+ rte_delay_ms(1000);
+
+ diag = igbvf_dev_start(dev);
+ if (diag) {
+ PMD_INIT_LOG(ERR, "Igb VF reset: "
+ "Failed to start device.");
+ return diag;
+ }
+ dev->data->dev_started = 1;
+ eth_igbvf_stats_reset(dev);
+ if (dev->data->dev_conf.intr_conf.lsc == 0)
+ diag = eth_igb_link_update(dev, 0);
+ if (diag) {
+ PMD_INIT_LOG(INFO, "Igb VF reset: "
+ "Failed to update link.");
+ }
+
+ /**
+ * When the PF link is down, there has chance
+ * that VF cannot operate its registers. Will
+ * check if the registers is written
+ * successfully. If not, repeat stop/start until
+ * the PF link is up, in other words, until the
+ * registers can be written.
+ */
+ eiam = E1000_READ_REG(hw, E1000_EIAM);
+ } while (!(eiam & eiam_mbx));
+
+ /**
+ * Release the locks for queues.
+ * Restore the RX/TX functions.
+ */
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_unlock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_unlock(&txq->tx_lock);
+ }
+
+ dev->rx_pkt_burst = adapter->rx_backup;
+ dev->tx_pkt_burst = adapter->tx_backup;
+
+ return 0;
+}
+
+static int
eth_igbvf_interrupt_action(struct rte_eth_dev *dev)
{
struct e1000_interrupt *intr =
diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index 7e97330..5af7173 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -67,7 +67,6 @@
#include <rte_tcp.h>
#include <rte_sctp.h>
#include <rte_string_fns.h>
-#include <rte_spinlock.h>
#include "e1000_logs.h"
#include "base/e1000_api.h"
@@ -80,72 +79,6 @@
PKT_TX_L4_MASK | \
PKT_TX_TCP_SEG)
-/**
- * Structure associated with each descriptor of the RX ring of a RX queue.
- */
-struct igb_rx_entry {
- struct rte_mbuf *mbuf; /**< mbuf associated with RX descriptor. */
-};
-
-/**
- * Structure associated with each descriptor of the TX ring of a TX queue.
- */
-struct igb_tx_entry {
- struct rte_mbuf *mbuf; /**< mbuf associated with TX desc, if any. */
- uint16_t next_id; /**< Index of next descriptor in ring. */
- uint16_t last_id; /**< Index of last scattered descriptor. */
-};
-
-/**
- * Structure associated with each RX queue.
- */
-struct igb_rx_queue {
- struct rte_mempool *mb_pool; /**< mbuf pool to populate RX ring. */
- volatile union e1000_adv_rx_desc *rx_ring; /**< RX ring virtual address. */
- uint64_t rx_ring_phys_addr; /**< RX ring DMA address. */
- volatile uint32_t *rdt_reg_addr; /**< RDT register address. */
- volatile uint32_t *rdh_reg_addr; /**< RDH register address. */
- struct igb_rx_entry *sw_ring; /**< address of RX software ring. */
- struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
- struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
- rte_spinlock_t rx_lock; /**< Lock for packet receiption. */
- uint16_t nb_rx_desc; /**< number of RX descriptors. */
- uint16_t rx_tail; /**< current value of RDT register. */
- uint16_t nb_rx_hold; /**< number of held free RX desc. */
- uint16_t rx_free_thresh; /**< max free RX desc to hold. */
- uint16_t queue_id; /**< RX queue index. */
- uint16_t reg_idx; /**< RX queue register index. */
- uint8_t port_id; /**< Device port identifier. */
- uint8_t pthresh; /**< Prefetch threshold register. */
- uint8_t hthresh; /**< Host threshold register. */
- uint8_t wthresh; /**< Write-back threshold register. */
- uint8_t crc_len; /**< 0 if CRC stripped, 4 otherwise. */
- uint8_t drop_en; /**< If not 0, set SRRCTL.Drop_En. */
-};
-
-/**
- * Hardware context number
- */
-enum igb_advctx_num {
- IGB_CTX_0 = 0, /**< CTX0 */
- IGB_CTX_1 = 1, /**< CTX1 */
- IGB_CTX_NUM = 2, /**< CTX_NUM */
-};
-
-/** Offload features */
-union igb_tx_offload {
- uint64_t data;
- struct {
- uint64_t l3_len:9; /**< L3 (IP) Header Length. */
- uint64_t l2_len:7; /**< L2 (MAC) Header Length. */
- uint64_t vlan_tci:16; /**< VLAN Tag Control Identifier(CPU order). */
- uint64_t l4_len:8; /**< L4 (TCP/UDP) Header Length. */
- uint64_t tso_segsz:16; /**< TCP TSO segment size. */
-
- /* uint64_t unused:8; */
- };
-};
-
/*
* Compare mask for igb_tx_offload.data,
* should be in sync with igb_tx_offload layout.
@@ -158,45 +91,6 @@ union igb_tx_offload {
#define TX_TSO_CMP_MASK \
(TX_MACIP_LEN_CMP_MASK | TX_TCP_LEN_CMP_MASK | TX_TSO_MSS_CMP_MASK)
-/**
- * Strucutre to check if new context need be built
- */
-struct igb_advctx_info {
- uint64_t flags; /**< ol_flags related to context build. */
- /** tx offload: vlan, tso, l2-l3-l4 lengths. */
- union igb_tx_offload tx_offload;
- /** compare mask for tx offload. */
- union igb_tx_offload tx_offload_mask;
-};
-
-/**
- * Structure associated with each TX queue.
- */
-struct igb_tx_queue {
- volatile union e1000_adv_tx_desc *tx_ring; /**< TX ring address */
- uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */
- struct igb_tx_entry *sw_ring; /**< virtual address of SW ring. */
- rte_spinlock_t tx_lock; /**< Lock for packet transmission. */
- volatile uint32_t *tdt_reg_addr; /**< Address of TDT register. */
- uint32_t txd_type; /**< Device-specific TXD type */
- uint16_t nb_tx_desc; /**< number of TX descriptors. */
- uint16_t tx_tail; /**< Current value of TDT register. */
- uint16_t tx_head;
- /**< Index of first used TX descriptor. */
- uint16_t queue_id; /**< TX queue index. */
- uint16_t reg_idx; /**< TX queue register index. */
- uint8_t port_id; /**< Device port identifier. */
- uint8_t pthresh; /**< Prefetch threshold register. */
- uint8_t hthresh; /**< Host threshold register. */
- uint8_t wthresh; /**< Write-back threshold register. */
- uint32_t ctx_curr;
- /**< Current used hardware descriptor. */
- uint32_t ctx_start;
- /**< Start context position for transmit queue. */
- struct igb_advctx_info ctx_cache[IGB_CTX_NUM];
- /**< Hardware context history.*/
-};
-
#if 1
#define RTE_PMD_USE_PREFETCH
#endif
@@ -2530,3 +2424,25 @@ igb_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
qinfo->conf.tx_thresh.hthresh = txq->hthresh;
qinfo->conf.tx_thresh.wthresh = txq->wthresh;
}
+
+/**
+ * A fake function to stop transmission.
+ */
+uint16_t
+eth_igbvf_xmit_pkts_fake(void __rte_unused *tx_queue,
+ struct rte_mbuf __rte_unused **tx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
+/**
+ * A fake function to stop receiption.
+ */
+uint16_t
+eth_igbvf_recv_pkts_fake(void __rte_unused *rx_queue,
+ struct rte_mbuf __rte_unused **rx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 7/8] i40e: RX/TX with lock on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (5 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 6/8] igb: implement device reset " Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 8/8] i40e: implement device reset " Zhe Tao
2016-06-07 6:26 ` [dpdk-dev] [PATCH v3 0/8] support reset of VF link Thomas Monjalon
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Add RX/TX paths with lock for VF. It's used when
the function of link reset on VF is needed.
When the lock for RX/TX is added, the RX/TX can be
stopped. Then we have a chance to reset the VF link.
Please be aware there's performence drop if the lock
path is chosen.
Signed-off-by: Zhe Tao <zhe.tao@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 4 ++--
drivers/net/i40e/i40e_ethdev.h | 4 ++++
drivers/net/i40e/i40e_ethdev_vf.c | 4 ++--
drivers/net/i40e/i40e_rxtx.c | 45 +++++++++++++++++++++++++--------------
drivers/net/i40e/i40e_rxtx.h | 30 ++++++++++++++++++++++++++
5 files changed, 67 insertions(+), 20 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 24777d5..1380330 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -764,8 +764,8 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
dev->dev_ops = &i40e_eth_dev_ops;
- dev->rx_pkt_burst = i40e_recv_pkts;
- dev->tx_pkt_burst = i40e_xmit_pkts;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_pkts);
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, i40e_xmit_pkts);
/* for secondary processes, we don't initialise any further as primary
* has already done this work. Only check we don't need a different
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index cfd2399..672d920 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -540,6 +540,10 @@ struct i40e_adapter {
struct rte_timecounter systime_tc;
struct rte_timecounter rx_tstamp_tc;
struct rte_timecounter tx_tstamp_tc;
+
+ /* For VF reset backup */
+ eth_rx_burst_t rx_backup;
+ eth_tx_burst_t tx_backup;
};
int i40e_dev_switch_queues(struct i40e_pf *pf, bool on);
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 90682ac..46d8a7c 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1451,8 +1451,8 @@ i40evf_dev_init(struct rte_eth_dev *eth_dev)
/* assign ops func pointer */
eth_dev->dev_ops = &i40evf_eth_dev_ops;
- eth_dev->rx_pkt_burst = &i40e_recv_pkts;
- eth_dev->tx_pkt_burst = &i40e_xmit_pkts;
+ eth_dev->rx_pkt_burst = RX_LOCK_FUNCTION(eth_dev, i40e_recv_pkts);
+ eth_dev->tx_pkt_burst = TX_LOCK_FUNCTION(eth_dev, i40e_xmit_pkts);
/*
* For secondary processes, we don't initialise any further as primary
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index c833aa3..0a6dcfb 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -79,10 +79,6 @@
PKT_TX_TCP_SEG | \
PKT_TX_OUTER_IP_CKSUM)
-static uint16_t i40e_xmit_pkts_simple(void *tx_queue,
- struct rte_mbuf **tx_pkts,
- uint16_t nb_pkts);
-
static inline void
i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp)
{
@@ -1144,7 +1140,7 @@ rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
return 0;
}
-static uint16_t
+uint16_t
i40e_recv_pkts_bulk_alloc(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts)
@@ -1169,7 +1165,7 @@ i40e_recv_pkts_bulk_alloc(void *rx_queue,
return nb_rx;
}
#else
-static uint16_t
+uint16_t
i40e_recv_pkts_bulk_alloc(void __rte_unused *rx_queue,
struct rte_mbuf __rte_unused **rx_pkts,
uint16_t __rte_unused nb_pkts)
@@ -1892,7 +1888,7 @@ tx_xmit_pkts(struct i40e_tx_queue *txq,
return nb_pkts;
}
-static uint16_t
+uint16_t
i40e_xmit_pkts_simple(void *tx_queue,
struct rte_mbuf **tx_pkts,
uint16_t nb_pkts)
@@ -2121,10 +2117,13 @@ i40e_dev_supported_ptypes_get(struct rte_eth_dev *dev)
};
if (dev->rx_pkt_burst == i40e_recv_pkts ||
+ dev->rx_pkt_burst == i40e_recv_pkts_lock ||
#ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
dev->rx_pkt_burst == i40e_recv_pkts_bulk_alloc ||
+ dev->rx_pkt_burst == i40e_recv_pkts_bulk_alloc_lock ||
#endif
- dev->rx_pkt_burst == i40e_recv_scattered_pkts)
+ dev->rx_pkt_burst == i40e_recv_scattered_pkts ||
+ dev->rx_pkt_burst == i40e_recv_scattered_pkts_lock)
return ptypes;
return NULL;
}
@@ -2648,6 +2647,7 @@ i40e_reset_rx_queue(struct i40e_rx_queue *rxq)
rxq->rxrearm_start = 0;
rxq->rxrearm_nb = 0;
+ rte_spinlock_init(&rxq->rx_lock);
}
void
@@ -2704,6 +2704,7 @@ i40e_reset_tx_queue(struct i40e_tx_queue *txq)
txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
+ rte_spinlock_init(&txq->tx_lock);
}
/* Init the TX queue in hardware */
@@ -3155,12 +3156,12 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
"callback (port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = i40e_recv_scattered_pkts_vec;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_scattered_pkts_vec);
} else {
PMD_INIT_LOG(DEBUG, "Using a Scattered with bulk "
"allocation callback (port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = i40e_recv_scattered_pkts;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_scattered_pkts);
}
/* If parameters allow we are going to choose between the following
* callbacks:
@@ -3174,27 +3175,29 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
RTE_I40E_DESCS_PER_LOOP,
dev->data->port_id);
- dev->rx_pkt_burst = i40e_recv_pkts_vec;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_pkts_vec);
} else if (ad->rx_bulk_alloc_allowed) {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
"satisfied. Rx Burst Bulk Alloc function "
"will be used on port=%d.",
dev->data->port_id);
- dev->rx_pkt_burst = i40e_recv_pkts_bulk_alloc;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_pkts_bulk_alloc);
} else {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are not "
"satisfied, or Scattered Rx is requested "
"(port=%d).",
dev->data->port_id);
- dev->rx_pkt_burst = i40e_recv_pkts;
+ dev->rx_pkt_burst = RX_LOCK_FUNCTION(dev, i40e_recv_pkts);
}
/* Propagate information about RX function choice through all queues. */
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
rx_using_sse =
(dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec ||
+ dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec_lock ||
+ dev->rx_pkt_burst == i40e_recv_pkts_vec_lock ||
dev->rx_pkt_burst == i40e_recv_pkts_vec);
for (i = 0; i < dev->data->nb_rx_queues; i++) {
@@ -3250,14 +3253,14 @@ i40e_set_tx_function(struct rte_eth_dev *dev)
if (ad->tx_simple_allowed) {
if (ad->tx_vec_allowed) {
PMD_INIT_LOG(DEBUG, "Vector tx finally be used.");
- dev->tx_pkt_burst = i40e_xmit_pkts_vec;
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, i40e_xmit_pkts_vec);
} else {
PMD_INIT_LOG(DEBUG, "Simple tx finally be used.");
- dev->tx_pkt_burst = i40e_xmit_pkts_simple;
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, i40e_xmit_pkts_simple);
}
} else {
PMD_INIT_LOG(DEBUG, "Xmit tx finally be used.");
- dev->tx_pkt_burst = i40e_xmit_pkts;
+ dev->tx_pkt_burst = TX_LOCK_FUNCTION(dev, i40e_xmit_pkts);
}
}
@@ -3311,3 +3314,13 @@ i40e_xmit_pkts_vec(void __rte_unused *tx_queue,
{
return 0;
}
+
+GENERATE_RX_LOCK(i40e_recv_pkts, i40e)
+GENERATE_RX_LOCK(i40e_recv_pkts_vec, i40e)
+GENERATE_RX_LOCK(i40e_recv_pkts_bulk_alloc, i40e)
+GENERATE_RX_LOCK(i40e_recv_scattered_pkts, i40e)
+GENERATE_RX_LOCK(i40e_recv_scattered_pkts_vec, i40e)
+
+GENERATE_TX_LOCK(i40e_xmit_pkts, i40e)
+GENERATE_TX_LOCK(i40e_xmit_pkts_vec, i40e)
+GENERATE_TX_LOCK(i40e_xmit_pkts_simple, i40e)
diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index 98179f0..a1c13b8 100644
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h
@@ -140,6 +140,7 @@ struct i40e_rx_queue {
bool rx_deferred_start; /**< don't start this queue in dev start */
uint16_t rx_using_sse; /**<flag indicate the usage of vPMD for rx */
uint8_t dcb_tc; /**< Traffic class of rx queue */
+ rte_spinlock_t rx_lock; /**< lock for rx path */
};
struct i40e_tx_entry {
@@ -181,6 +182,7 @@ struct i40e_tx_queue {
bool q_set; /**< indicate if tx queue has been configured */
bool tx_deferred_start; /**< don't start this queue in dev start */
uint8_t dcb_tc; /**< Traffic class of tx queue */
+ rte_spinlock_t tx_lock; /**< lock for tx path */
};
/** Offload features */
@@ -223,6 +225,27 @@ uint16_t i40e_recv_scattered_pkts(void *rx_queue,
uint16_t i40e_xmit_pkts(void *tx_queue,
struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+uint16_t i40e_xmit_pkts_lock(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_xmit_pkts_simple(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_xmit_pkts_simple_lock(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_pkts_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_scattered_pkts_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_pkts_bulk_alloc(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_pkts_bulk_alloc_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
int i40e_tx_queue_init(struct i40e_tx_queue *txq);
int i40e_rx_queue_init(struct i40e_rx_queue *rxq);
void i40e_free_tx_resources(struct i40e_tx_queue *txq);
@@ -244,12 +267,19 @@ uint16_t i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t i40e_recv_scattered_pkts_vec(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
+uint16_t i40e_recv_pkts_vec_lock(void *rx_queue, struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_scattered_pkts_vec_lock(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
int i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev);
int i40e_rxq_vec_setup(struct i40e_rx_queue *rxq);
int i40e_txq_vec_setup(struct i40e_tx_queue *txq);
void i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq);
uint16_t i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+uint16_t i40e_xmit_pkts_vec_lock(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
void i40e_set_rx_function(struct rte_eth_dev *dev);
void i40e_set_tx_function_flag(struct rte_eth_dev *dev,
struct i40e_tx_queue *txq);
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* [dpdk-dev] [PATCH v3 8/8] i40e: implement device reset on VF
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (6 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 7/8] i40e: RX/TX with lock " Zhe Tao
@ 2016-06-07 6:12 ` Zhe Tao
2016-06-07 6:26 ` [dpdk-dev] [PATCH v3 0/8] support reset of VF link Thomas Monjalon
8 siblings, 0 replies; 10+ messages in thread
From: Zhe Tao @ 2016-06-07 6:12 UTC (permalink / raw)
To: dev
Cc: wenzhuo.lu, zhe.tao, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Implement the device reset function.
1, Add the fake RX/TX functions.
2, The reset function tries to stop RX/TX by replacing
the RX/TX functions with the fake ones and getting the
locks to make sure the regular RX/TX finished.
3, After the RX/TX stopped, reset the VF port, and then
release the locks.
Signed-off-by: Zhe Tao <zhe.tao@intel.com>
---
app/test-pmd/config.c | 3 +
doc/guides/rel_notes/release_16_07.rst | 5 ++
drivers/net/i40e/i40e_ethdev.h | 7 +-
drivers/net/i40e/i40e_ethdev_vf.c | 152 ++++++++++++++++++++++++++++++++-
drivers/net/i40e/i40e_rxtx.c | 10 +++
drivers/net/i40e/i40e_rxtx.h | 4 +
6 files changed, 175 insertions(+), 6 deletions(-)
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 1c552e4..a120261 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -378,6 +378,7 @@ tx_queue_infos_display(portid_t port_id, uint16_t queue_id)
printf("\nNumber of TXDs: %hu", qinfo.nb_desc);
printf("\n");
}
+void i40evf_emulate_vf_reset(uint8_t port_id);
void
port_infos_display(portid_t port_id)
@@ -398,6 +399,8 @@ port_infos_display(portid_t port_id)
printf("]\n");
return;
}
+ printf("emulate vf reset\n");
+ i40evf_emulate_vf_reset(port_id);
port = &ports[port_id];
rte_eth_link_get_nowait(port_id, &link);
printf("\n%s Infos for port %-2d %s\n",
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index a4c0cc3..f43b867 100644
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -62,6 +62,11 @@ New Features
callback in the message handler to notice the APP. APP need call the device
reset API to reset the VF port.
+* **Added VF reset support for i40e VF driver.**
+
+ Added a new implementaion to allow i40e VF driver to
+ reset the functionality and state of itself.
+
Resolved Issues
---------------
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 672d920..dcd6e0f 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -541,9 +541,8 @@ struct i40e_adapter {
struct rte_timecounter rx_tstamp_tc;
struct rte_timecounter tx_tstamp_tc;
- /* For VF reset backup */
- eth_rx_burst_t rx_backup;
- eth_tx_burst_t tx_backup;
+ /* For VF reset */
+ uint8_t reset_number;
};
int i40e_dev_switch_queues(struct i40e_pf *pf, bool on);
@@ -597,6 +596,8 @@ void i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
void i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
struct rte_eth_txq_info *qinfo);
+void i40evf_emulate_vf_reset(uint8_t port_id);
+
/* I40E_DEV_PRIVATE_TO */
#define I40E_DEV_PRIVATE_TO_PF(adapter) \
(&((struct i40e_adapter *)adapter)->pf)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 46d8a7c..d873d2d 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -157,6 +157,12 @@ i40evf_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id);
static void i40evf_handle_pf_event(__rte_unused struct rte_eth_dev *dev,
uint8_t *msg,
uint16_t msglen);
+static int i40evf_dev_uninit(struct rte_eth_dev *eth_dev);
+static int i40evf_dev_init(struct rte_eth_dev *eth_dev);
+static void i40evf_dev_close(struct rte_eth_dev *dev);
+static int i40evf_dev_start(struct rte_eth_dev *dev);
+static int i40evf_dev_configure(struct rte_eth_dev *dev);
+static int i40evf_handle_vf_reset(struct rte_eth_dev *dev);
/* Default hash key buffer for RSS */
static uint32_t rss_key_default[I40E_VFQF_HKEY_MAX_INDEX + 1];
@@ -223,6 +229,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {
.reta_query = i40evf_dev_rss_reta_query,
.rss_hash_update = i40evf_dev_rss_hash_update,
.rss_hash_conf_get = i40evf_dev_rss_hash_conf_get,
+ .dev_reset = i40evf_handle_vf_reset
};
/*
@@ -1309,6 +1316,140 @@ i40evf_uninit_vf(struct rte_eth_dev *dev)
}
static void
+i40e_vf_queue_reset(struct rte_eth_dev *dev)
+{
+ uint16_t i;
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ struct i40e_rx_queue *rxq = dev->data->rx_queues[i];
+
+ if (rxq->q_set) {
+ i40e_dev_rx_queue_setup(dev,
+ rxq->queue_id,
+ rxq->nb_rx_desc,
+ rxq->socket_id,
+ &rxq->rxconf,
+ rxq->mp);
+ }
+
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_trylock(&rxq->rx_lock);
+ }
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ struct i40e_tx_queue *txq = dev->data->tx_queues[i];
+
+ if (txq->q_set) {
+ i40e_dev_tx_queue_setup(dev,
+ txq->queue_id,
+ txq->nb_tx_desc,
+ txq->socket_id,
+ &txq->txconf);
+ }
+
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_trylock(&txq->tx_lock);
+ }
+}
+
+static void
+i40e_vf_reset_dev(struct rte_eth_dev *dev)
+{
+ struct i40e_adapter *adapter =
+ I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+
+ i40evf_dev_close(dev);
+ PMD_DRV_LOG(DEBUG, "i40evf dev close complete");
+ i40evf_dev_uninit(dev);
+ PMD_DRV_LOG(DEBUG, "i40evf dev detached");
+ memset(dev->data->dev_private, 0,
+ (uint64_t)&adapter->reset_number - (uint64_t)adapter);
+
+ i40evf_dev_configure(dev);
+ i40evf_dev_init(dev);
+ PMD_DRV_LOG(DEBUG, "i40evf dev attached");
+ i40e_vf_queue_reset(dev);
+ PMD_DRV_LOG(DEBUG, "i40evf queue reset");
+ i40evf_dev_start(dev);
+ PMD_DRV_LOG(DEBUG, "i40evf dev restart");
+}
+
+static uint16_t
+i40evf_recv_pkts_detach(void __rte_unused *rx_queue,
+ struct rte_mbuf __rte_unused **rx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
+static uint16_t
+i40evf_xmit_pkts_detach(void __rte_unused *tx_queue,
+ struct rte_mbuf __rte_unused **tx_pkts,
+ uint16_t __rte_unused nb_pkts)
+{
+ return 0;
+}
+
+static int
+i40evf_handle_vf_reset(struct rte_eth_dev *dev)
+{
+ struct i40e_adapter *adapter =
+ I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+ uint16_t i = 0;
+ struct i40e_rx_queue *rxq;
+ struct i40e_tx_queue *txq;
+
+ if (!dev->data->dev_started)
+ return 0;
+
+ adapter->reset_number = 1;
+
+ /**
+ * Stop RX/TX by fake functions and locks.
+ * Fake functions are used to make RX/TX lock easier.
+ */
+ dev->rx_pkt_burst = i40evf_recv_pkts_detach;
+ dev->tx_pkt_burst = i40evf_xmit_pkts_detach;
+
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_lock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_lock(&txq->tx_lock);
+ }
+
+ i40e_vf_reset_dev(dev);
+
+ adapter->reset_number = 0;
+
+ if (dev->data->rx_queues)
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+ rte_spinlock_unlock(&rxq->rx_lock);
+ }
+
+ if (dev->data->tx_queues)
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ rte_spinlock_unlock(&txq->tx_lock);
+ }
+
+ return 0;
+}
+
+void
+i40evf_emulate_vf_reset(uint8_t port_id)
+{
+ struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+
+ i40evf_handle_vf_reset(dev);
+}
+
+static void
i40evf_handle_pf_event(__rte_unused struct rte_eth_dev *dev,
uint8_t *msg,
__rte_unused uint16_t msglen)
@@ -1446,13 +1587,18 @@ i40evf_dev_init(struct rte_eth_dev *eth_dev)
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(\
eth_dev->data->dev_private);
struct rte_pci_device *pci_dev = eth_dev->pci_dev;
+ struct i40e_adapter *adapter =
+ I40E_DEV_PRIVATE_TO_ADAPTER(eth_dev->data->dev_private);
PMD_INIT_FUNC_TRACE();
-
/* assign ops func pointer */
eth_dev->dev_ops = &i40evf_eth_dev_ops;
- eth_dev->rx_pkt_burst = RX_LOCK_FUNCTION(eth_dev, i40e_recv_pkts);
- eth_dev->tx_pkt_burst = TX_LOCK_FUNCTION(eth_dev, i40e_xmit_pkts);
+ if (adapter->reset_number) {
+ eth_dev->rx_pkt_burst =
+ RX_LOCK_FUNCTION(eth_dev, i40e_recv_pkts);
+ eth_dev->tx_pkt_burst =
+ TX_LOCK_FUNCTION(eth_dev, i40e_xmit_pkts);
+ }
/*
* For secondary processes, we don't initialise any further as primary
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 0a6dcfb..f6caf4e 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2147,6 +2147,7 @@ i40e_dev_rx_queue_setup(struct rte_eth_dev *dev,
uint16_t len, i;
uint16_t base, bsf, tc_mapping;
int use_def_burst_func = 1;
+ struct rte_eth_rxconf conf = *rx_conf;
if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) {
struct i40e_vf *vf =
@@ -2185,6 +2186,8 @@ i40e_dev_rx_queue_setup(struct rte_eth_dev *dev,
return -ENOMEM;
}
rxq->mp = mp;
+ rxq->socket_id = socket_id;
+ rxq->rxconf = conf;
rxq->nb_rx_desc = nb_desc;
rxq->rx_free_thresh = rx_conf->rx_free_thresh;
rxq->queue_id = queue_idx;
@@ -2364,6 +2367,7 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
uint32_t ring_size;
uint16_t tx_rs_thresh, tx_free_thresh;
uint16_t i, base, bsf, tc_mapping;
+ struct rte_eth_txconf conf = *tx_conf;
if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) {
struct i40e_vf *vf =
@@ -2487,6 +2491,8 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
}
txq->nb_tx_desc = nb_desc;
+ txq->socket_id = socket_id;
+ txq->txconf = conf;
txq->tx_rs_thresh = tx_rs_thresh;
txq->tx_free_thresh = tx_free_thresh;
txq->pthresh = tx_conf->tx_thresh.pthresh;
@@ -2951,8 +2957,12 @@ void
i40e_dev_free_queues(struct rte_eth_dev *dev)
{
uint16_t i;
+ struct i40e_adapter *adapter =
+ I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
PMD_INIT_FUNC_TRACE();
+ if (adapter->reset_number)
+ return;
for (i = 0; i < dev->data->nb_rx_queues; i++) {
i40e_dev_rx_queue_release(dev->data->rx_queues[i]);
diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index a1c13b8..7ee33dc 100644
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h
@@ -141,6 +141,8 @@ struct i40e_rx_queue {
uint16_t rx_using_sse; /**<flag indicate the usage of vPMD for rx */
uint8_t dcb_tc; /**< Traffic class of rx queue */
rte_spinlock_t rx_lock; /**< lock for rx path */
+ uint8_t socket_id;
+ struct rte_eth_rxconf rxconf;
};
struct i40e_tx_entry {
@@ -183,6 +185,8 @@ struct i40e_tx_queue {
bool tx_deferred_start; /**< don't start this queue in dev start */
uint8_t dcb_tc; /**< Traffic class of tx queue */
rte_spinlock_t tx_lock; /**< lock for tx path */
+ uint8_t socket_id;
+ struct rte_eth_txconf txconf;
};
/** Offload features */
--
2.1.4
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [dpdk-dev] [PATCH v3 0/8] support reset of VF link
2016-06-07 6:12 [dpdk-dev] [PATCH v3 0/8] support reset of VF link Zhe Tao
` (7 preceding siblings ...)
2016-06-07 6:12 ` [dpdk-dev] [PATCH v3 8/8] i40e: implement device reset " Zhe Tao
@ 2016-06-07 6:26 ` Thomas Monjalon
8 siblings, 0 replies; 10+ messages in thread
From: Thomas Monjalon @ 2016-06-07 6:26 UTC (permalink / raw)
To: Zhe Tao
Cc: dev, wenzhuo.lu, konstantin.ananyev, bruce.richardson,
jing.d.chen, cunming.liang, jingjing.wu, helin.zhang
Hi Zhe,
Reminder from http://dpdk.org/dev#send:
git send-email -8 -v3 --cover-letter --annotate
--in-reply-to <Message-ID of the previous patch>
Please do not forget --in-reply-to. Thanks
^ permalink raw reply [flat|nested] 10+ messages in thread