From: Santwona Behera <santwona.behera@sun.com>
Subject: [PATCH 2/3] [Ethtool] Add RX pkt classification interface
Signed-off-by: Santwona Behera <santwona.behera@sun.com>
---
include/linux/ethtool.h | 84 +++++++++++++++++++++++++++++++++++++++++++---
net/core/ethtool.c | 58 +++++++++++++++++++++++++++-----
2 files changed, 126 insertions(+), 16 deletions(-)
@@ -287,10 +287,71 @@ enum ethtool_flags {
ETH_FLAG_LRO = (1 << 15), /* LRO is enabled */
};
-struct ethtool_rxnfc {
- __u32 cmd;
+struct ethtool_tcpip4_spec {
+ __u32 ip4src;
+ __u32 ip4dst;
+ __u16 psrc;
+ __u16 pdst;
+ __u8 tos;
+};
+
+struct ethtool_ah_espip4_spec {
+ __u32 ip4src;
+ __u32 ip4dst;
+ __u32 spi;
+ __u8 tos;
+};
+
+struct ethtool_rawip4_spec {
+ __u32 ip4src;
+ __u32 ip4dst;
+ __u8 hdata[64];
+};
+
+struct ethtool_ether_spec {
+ __u16 ether_type;
+ __u8 frame_size;
+ __u8 eframe[16];
+};
+
+#define ETH_RX_NFC_IP4 1
+#define ETH_RX_NFC_IP6 2
+
+struct ethtool_usrip4_spec {
+ __u32 ip4src;
+ __u32 ip4dst;
+ __u32 l4_4_bytes;
+ __u8 tos;
+ __u8 ip_ver;
+ __u8 proto;
+};
+
+struct ethtool_rx_flow_spec {
__u32 flow_type;
- __u64 data;
+ union
+ {
+ struct ethtool_tcpip4_spec tcp_ip4_spec;
+ struct ethtool_tcpip4_spec udp_ip4_spec;
+ struct ethtool_tcpip4_spec sctp_ip4_spec;
+ struct ethtool_ah_espip4_spec ah_ip4_spec;
+ struct ethtool_ah_espip4_spec esp_ip4_spec;
+ struct ethtool_rawip4_spec raw_ip4_spec;
+ struct ethtool_ether_spec ether_spec;
+ struct ethtool_usrip4_spec usr_ip4_spec;
+ __u8 hdata[64];
+ } h_u, m_u; /* entry, mask */
+ __u64 ring_cookie;
+ __u32 location;
+};
+
+struct ethtool_rxnfc {
+ __u32 cmd;
+ __u32 flow_type;
+ /* The rx flow hash value or the rule DB size */
+ __u64 data;
+ struct ethtool_rx_flow_spec fs;
+ __u32 rule_cnt;
+ __u32 rule_locs[0];
};
#ifdef __KERNEL__
@@ -417,8 +478,8 @@ struct ethtool_ops {
/* the following hooks are obsolete */
int (*self_test_count)(struct net_device *);/* use get_sset_count */
int (*get_stats_count)(struct net_device *);/* use get_sset_count */
- int (*get_rxhash)(struct net_device *, struct ethtool_rxnfc *);
- int (*set_rxhash)(struct net_device *, struct ethtool_rxnfc *);
+ int (*get_rxnfc)(struct net_device *, struct ethtool_rxnfc *, void *);
+ int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
};
#endif /* __KERNEL__ */
@@ -469,6 +530,12 @@ struct ethtool_ops {
#define ETHTOOL_SRXFH 0x0000002a /* Set RX flow hash configuration */
#define ETHTOOL_GGRO 0x0000002b /* Get GRO enable (ethtool_value) */
#define ETHTOOL_SGRO 0x0000002c /* Set GRO enable (ethtool_value) */
+#define ETHTOOL_GRXRINGS 0x0000002d /* Get RX rings available for LB */
+#define ETHTOOL_GRXCLSRLCNT 0x0000002e /* Get RX class rule count */
+#define ETHTOOL_GRXCLSRULE 0x0000002f /* Get RX classification rule */
+#define ETHTOOL_GRXCLSRLALL 0x00000030 /* Get all RX classification rule */
+#define ETHTOOL_SRXCLSRLDEL 0x00000031 /* Delete RX classification rule */
+#define ETHTOOL_SRXCLSRLINS 0x00000032 /* Insert RX classification rule */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET
@@ -565,9 +632,13 @@ struct ethtool_ops {
#define UDP_V6_FLOW 0x06
#define SCTP_V6_FLOW 0x07
#define AH_ESP_V6_FLOW 0x08
+#define AH_V4_FLOW 0x09
+#define ESP_V4_FLOW 0x0a
+#define AH_V6_FLOW 0x0b
+#define ESP_V6_FLOW 0x0c
+#define IP_USER_FLOW 0x0d
/* L3-L4 network traffic flow hash options */
-#define RXH_DEV_PORT (1 << 0)
#define RXH_L2DA (1 << 1)
#define RXH_VLAN (1 << 2)
#define RXH_L3_PROTO (1 << 3)
@@ -577,5 +648,6 @@ struct ethtool_ops {
#define RXH_L4_B_2_3 (1 << 7) /* dst port in case of TCP/UDP/SCTP */
#define RXH_DISCARD (1 << 31)
+#define RX_CLS_FLOW_DISC 0xffffffffffffffffULL
#endif /* _LINUX_ETHTOOL_H */
@@ -209,34 +209,62 @@ static int ethtool_get_drvinfo(struct net_device *dev, void __user *useraddr)
return 0;
}
-static int ethtool_set_rxhash(struct net_device *dev, void __user *useraddr)
+static int ethtool_set_rxnfc(struct net_device *dev, void __user *useraddr)
{
struct ethtool_rxnfc cmd;
- if (!dev->ethtool_ops->set_rxhash)
+ if (!dev->ethtool_ops->set_rxnfc)
return -EOPNOTSUPP;
if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
return -EFAULT;
- return dev->ethtool_ops->set_rxhash(dev, &cmd);
+ return dev->ethtool_ops->set_rxnfc(dev, &cmd);
}
-static int ethtool_get_rxhash(struct net_device *dev, void __user *useraddr)
+static int ethtool_get_rxnfc(struct net_device *dev, void __user *useraddr)
{
struct ethtool_rxnfc info;
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ int ret;
+ void *rule_buf = NULL;
- if (!dev->ethtool_ops->get_rxhash)
+ if (!ops->get_rxnfc)
return -EOPNOTSUPP;
if (copy_from_user(&info, useraddr, sizeof(info)))
return -EFAULT;
- dev->ethtool_ops->get_rxhash(dev, &info);
+ if (info.cmd == ETHTOOL_GRXCLSRLALL) {
+ if (info.rule_cnt > 0) {
+ rule_buf = kmalloc(info.rule_cnt * sizeof(u32),
+ GFP_USER);
+ if (!rule_buf)
+ return -ENOMEM;
+ }
+ }
+ ret = ops->get_rxnfc(dev, &info, rule_buf);
+ if (ret < 0)
+ goto err_out;
+
+ ret = -EFAULT;
if (copy_to_user(useraddr, &info, sizeof(info)))
- return -EFAULT;
- return 0;
+ goto err_out;
+
+ if (rule_buf) {
+ useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
+ if (copy_to_user(useraddr, rule_buf,
+ info.rule_cnt * sizeof(u32)))
+ goto err_out;
+ }
+ ret = 0;
+
+err_out:
+ if (rule_buf)
+ kfree(rule_buf);
+
+ return ret;
}
static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
@@ -901,6 +929,10 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
case ETHTOOL_GFLAGS:
case ETHTOOL_GPFLAGS:
case ETHTOOL_GRXFH:
+ case ETHTOOL_GRXRINGS:
+ case ETHTOOL_GRXCLSRLCNT:
+ case ETHTOOL_GRXCLSRULE:
+ case ETHTOOL_GRXCLSRLALL:
break;
default:
if (!capable(CAP_NET_ADMIN))
@@ -1052,10 +1084,16 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
dev->ethtool_ops->set_priv_flags);
break;
case ETHTOOL_GRXFH:
- rc = ethtool_get_rxhash(dev, useraddr);
+ case ETHTOOL_GRXRINGS:
+ case ETHTOOL_GRXCLSRLCNT:
+ case ETHTOOL_GRXCLSRULE:
+ case ETHTOOL_GRXCLSRLALL:
+ rc = ethtool_get_rxnfc(dev, useraddr);
break;
case ETHTOOL_SRXFH:
- rc = ethtool_set_rxhash(dev, useraddr);
+ case ETHTOOL_SRXCLSRLDEL:
+ case ETHTOOL_SRXCLSRLINS:
+ rc = ethtool_set_rxnfc(dev, useraddr);
break;
case ETHTOOL_GGRO:
rc = ethtool_get_gro(dev, useraddr);
--
1.6.0.4