[dpdk-dev] [PATCH] fm10k: enable PCIe port level Loopback Suppression
Shaopeng He
shaopeng.he at intel.com
Thu Jan 28 06:48:39 CET 2016
A PCIe port may represent within it multiple logical ports
(for example when SR-IOV is enabled, or when a VMDQ type logical
port scheme is employed assigning ports to sets of queues).
For this reason each RX queue in each PCIe port is given a source
GLORT that is used for loopback suppression.
This patch assigns a SGLORT for each RX queue, and enables PCIe
port level Loopback Suppression.
Signed-off-by: Shaopeng He <shaopeng.he at intel.com>
---
drivers/net/fm10k/fm10k_ethdev.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index f6eb05d..60f821a 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -690,12 +690,15 @@ static int
fm10k_dev_rx_init(struct rte_eth_dev *dev)
{
struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct fm10k_macvlan_filter_info *macvlan;
int i, ret;
struct fm10k_rx_queue *rxq;
uint64_t base_addr;
uint32_t size;
uint32_t rxdctl = FM10K_RXDCTL_WRITE_BACK_MIN_DELAY;
+ uint32_t logic_port = hw->mac.dglort_map;
uint16_t buf_size;
+ uint16_t queue_stride = 0;
/* Disable RXINT to avoid possible interrupt */
for (i = 0; i < hw->mac.max_queues; i++)
@@ -735,7 +738,8 @@ fm10k_dev_rx_init(struct rte_eth_dev *dev)
buf_size -= FM10K_RX_DATABUF_ALIGN;
FM10K_WRITE_REG(hw, FM10K_SRRCTL(i),
- buf_size >> FM10K_SRRCTL_BSIZEPKT_SHIFT);
+ (buf_size >> FM10K_SRRCTL_BSIZEPKT_SHIFT) |
+ FM10K_SRRCTL_LOOPBACK_SUPPRESS);
/* It adds dual VLAN length for supporting dual VLAN */
if ((dev->data->dev_conf.rxmode.max_rx_pkt_len +
@@ -762,6 +766,18 @@ fm10k_dev_rx_init(struct rte_eth_dev *dev)
/* Decide the best RX function */
fm10k_set_rx_function(dev);
+ /* update RX_SGLORT for loopback suppress*/
+ if (hw->mac.type != fm10k_mac_pf)
+ return 0;
+ macvlan = FM10K_DEV_PRIVATE_TO_MACVLAN(dev->data->dev_private);
+ if (macvlan->nb_queue_pools)
+ queue_stride = dev->data->nb_rx_queues / macvlan->nb_queue_pools;
+ for (i = 0; i < dev->data->nb_rx_queues; ++i) {
+ if (i && queue_stride && !(i % queue_stride))
+ logic_port++;
+ FM10K_WRITE_REG(hw, FM10K_RX_SGLORT(i), logic_port);
+ }
+
return 0;
}
--
1.9.3
More information about the dev
mailing list