aboutsummaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/nes
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/nes')
-rw-r--r--drivers/infiniband/hw/nes/Kconfig1
-rw-r--r--drivers/infiniband/hw/nes/nes.c4
-rw-r--r--drivers/infiniband/hw/nes/nes.h1
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c53
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.h11
-rw-r--r--drivers/infiniband/hw/nes/nes_nic.c12
6 files changed, 70 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/nes/Kconfig b/drivers/infiniband/hw/nes/Kconfig
index 2aeb7ac972a..d449eb6ec78 100644
--- a/drivers/infiniband/hw/nes/Kconfig
+++ b/drivers/infiniband/hw/nes/Kconfig
@@ -2,6 +2,7 @@ config INFINIBAND_NES
tristate "NetEffect RNIC Driver"
depends on PCI && INET && INFINIBAND
select LIBCRC32C
+ select INET_LRO
---help---
This is a low-level driver for NetEffect RDMA enabled
Network Interface Cards (RNIC).
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index a4e9269a29b..9f7364a9096 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -91,6 +91,10 @@ unsigned int nes_debug_level = 0;
module_param_named(debug_level, nes_debug_level, uint, 0644);
MODULE_PARM_DESC(debug_level, "Enable debug output level");
+unsigned int nes_lro_max_aggr = NES_LRO_MAX_AGGR;
+module_param(nes_lro_max_aggr, int, NES_LRO_MAX_AGGR);
+MODULE_PARM_DESC(nes_mro_max_aggr, " nic LRO MAX packet aggregation");
+
LIST_HEAD(nes_adapter_list);
static LIST_HEAD(nes_dev_list);
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index cdf2e9ad62f..484b5e30bad 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -173,6 +173,7 @@ extern int disable_mpa_crc;
extern unsigned int send_first;
extern unsigned int nes_drv_opt;
extern unsigned int nes_debug_level;
+extern unsigned int nes_lro_max_aggr;
extern struct list_head nes_adapter_list;
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 08964cc7e98..f824ecb9f87 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -38,6 +38,7 @@
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
+#include <linux/inet_lro.h>
#include "nes.h"
@@ -1375,6 +1376,25 @@ static void nes_rq_wqes_timeout(unsigned long parm)
}
+static int nes_lro_get_skb_hdr(struct sk_buff *skb, void **iphdr,
+ void **tcph, u64 *hdr_flags, void *priv)
+{
+ unsigned int ip_len;
+ struct iphdr *iph;
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ if (iph->protocol != IPPROTO_TCP)
+ return -1;
+ ip_len = ip_hdrlen(skb);
+ skb_set_transport_header(skb, ip_len);
+ *tcph = tcp_hdr(skb);
+
+ *hdr_flags = LRO_IPV4 | LRO_TCP;
+ *iphdr = iph;
+ return 0;
+}
+
+
/**
* nes_init_nic_qp
*/
@@ -1592,15 +1612,21 @@ int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
nesvnic->rq_wqes_timer.function = nes_rq_wqes_timeout;
nesvnic->rq_wqes_timer.data = (unsigned long)nesvnic;
nes_debug(NES_DBG_INIT, "NAPI support Enabled\n");
-
if (nesdev->nesadapter->et_use_adaptive_rx_coalesce)
{
nes_nic_init_timer(nesdev);
if (netdev->mtu > 1500)
jumbomode = 1;
- nes_nic_init_timer_defaults(nesdev, jumbomode);
- }
-
+ nes_nic_init_timer_defaults(nesdev, jumbomode);
+ }
+ nesvnic->lro_mgr.max_aggr = NES_LRO_MAX_AGGR;
+ nesvnic->lro_mgr.max_desc = NES_MAX_LRO_DESCRIPTORS;
+ nesvnic->lro_mgr.lro_arr = nesvnic->lro_desc;
+ nesvnic->lro_mgr.get_skb_header = nes_lro_get_skb_hdr;
+ nesvnic->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
+ nesvnic->lro_mgr.dev = netdev;
+ nesvnic->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
+ nesvnic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
return 0;
}
@@ -2254,10 +2280,13 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
u16 pkt_type;
u16 rqes_processed = 0;
u8 sq_cqes = 0;
+ u8 nes_use_lro = 0;
head = cq->cq_head;
cq_size = cq->cq_size;
cq->cqes_pending = 1;
+ if (nesvnic->netdev->features & NETIF_F_LRO)
+ nes_use_lro = 1;
do {
if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]) &
NES_NIC_CQE_VALID) {
@@ -2379,9 +2408,16 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
>> 16);
nes_debug(NES_DBG_CQ, "%s: Reporting stripped VLAN packet. Tag = 0x%04X\n",
nesvnic->netdev->name, vlan_tag);
- nes_vlan_rx(rx_skb, nesvnic->vlan_grp, vlan_tag);
+ if (nes_use_lro)
+ lro_vlan_hwaccel_receive_skb(&nesvnic->lro_mgr, rx_skb,
+ nesvnic->vlan_grp, vlan_tag, NULL);
+ else
+ nes_vlan_rx(rx_skb, nesvnic->vlan_grp, vlan_tag);
} else {
- nes_netif_rx(rx_skb);
+ if (nes_use_lro)
+ lro_receive_skb(&nesvnic->lro_mgr, rx_skb, NULL);
+ else
+ nes_netif_rx(rx_skb);
}
}
@@ -2413,13 +2449,14 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
} while (1);
+ if (nes_use_lro)
+ lro_flush_all(&nesvnic->lro_mgr);
if (sq_cqes) {
barrier();
/* restart the queue if it had been stopped */
if (netif_queue_stopped(nesvnic->netdev))
netif_wake_queue(nesvnic->netdev);
}
-
cq->cq_head = head;
/* nes_debug(NES_DBG_CQ, "CQ%u Processed = %u cqes, new head = %u.\n",
cq->cq_number, cqe_count, cq->cq_head); */
@@ -2432,7 +2469,7 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
}
if (atomic_read(&nesvnic->rx_skbs_needed))
nes_replenish_nic_rq(nesvnic);
- }
+}
/**
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 8f36e231bdf..6a0f94cc9f0 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -33,6 +33,8 @@
#ifndef __NES_HW_H
#define __NES_HW_H
+#include <linux/inet_lro.h>
+
#define NES_PHY_TYPE_1G 2
#define NES_PHY_TYPE_IRIS 3
#define NES_PHY_TYPE_PUMA_10G 6
@@ -982,8 +984,10 @@ struct nes_hw_tune_timer {
#define NES_TIMER_INT_LIMIT 2
#define NES_TIMER_INT_LIMIT_DYNAMIC 10
#define NES_TIMER_ENABLE_LIMIT 4
-#define NES_MAX_LINK_INTERRUPTS 128
-#define NES_MAX_LINK_CHECK 200
+#define NES_MAX_LINK_INTERRUPTS 128
+#define NES_MAX_LINK_CHECK 200
+#define NES_MAX_LRO_DESCRIPTORS 32
+#define NES_LRO_MAX_AGGR 64
struct nes_adapter {
u64 fw_ver;
@@ -1183,6 +1187,9 @@ struct nes_vnic {
u8 of_device_registered;
u8 rdma_enabled;
u8 rx_checksum_disabled;
+ u32 lro_max_aggr;
+ struct net_lro_mgr lro_mgr;
+ struct net_lro_desc lro_desc[NES_MAX_LRO_DESCRIPTORS];
};
struct nes_ib_device {
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index e5366b013c1..6998af0172a 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -936,8 +936,7 @@ static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu)
return ret;
}
-#define NES_ETHTOOL_STAT_COUNT 55
-static const char nes_ethtool_stringset[NES_ETHTOOL_STAT_COUNT][ETH_GSTRING_LEN] = {
+static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = {
"Link Change Interrupts",
"Linearized SKBs",
"T/GSO Requests",
@@ -993,8 +992,12 @@ static const char nes_ethtool_stringset[NES_ETHTOOL_STAT_COUNT][ETH_GSTRING_LEN]
"CQ Depth 32",
"CQ Depth 128",
"CQ Depth 256",
+ "LRO aggregated",
+ "LRO flushed",
+ "LRO no_desc",
};
+#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset)
/**
* nes_netdev_get_rx_csum
@@ -1189,6 +1192,9 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
target_stat_values[52] = int_mod_cq_depth_32;
target_stat_values[53] = int_mod_cq_depth_128;
target_stat_values[54] = int_mod_cq_depth_256;
+ target_stat_values[55] = nesvnic->lro_mgr.stats.aggregated;
+ target_stat_values[56] = nesvnic->lro_mgr.stats.flushed;
+ target_stat_values[57] = nesvnic->lro_mgr.stats.no_desc;
}
@@ -1454,6 +1460,8 @@ static struct ethtool_ops nes_ethtool_ops = {
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
+ .get_flags = ethtool_op_get_flags,
+ .set_flags = ethtool_op_set_flags,
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 13:45:49 +0000