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Message-Id: <20080203.042124.194900974.davem@davemloft.net>
Date: Sun, 03 Feb 2008 04:21:24 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: jeff@...zik.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [git patches] net driver updates #2
From: David Miller <davem@...emloft.net>
Date: Fri, 01 Feb 2008 21:52:10 -0800 (PST)
> From: Jeff Garzik <jeff@...zik.org>
> Date: Fri, 1 Feb 2008 16:03:38 -0500
>
> > Please pull from 'upstream2-davem' branch of
>
> This is now pulled and pushed back out to net-2.6
The first S2io patch breaks the build so I'm removing it from the
net-2.6 tree. I suspect you rejected an earlier patch that added the
tx_lock member to the S2IO device private.
If you do that Jeff, please at least do a quick sanity check of the
build.
If, instead, I messed things up somehow, my apologies in advance.
drivers/net/s2io.c: In function 's2io_vlan_rx_kill_vid':
drivers/net/s2io.c:395: error: 'struct s2io_nic' has no member named 'tx_lock'
drivers/net/s2io.c:399: error: 'struct s2io_nic' has no member named 'tx_lock'
S2io: Support for vlan_rx_kill_vid entry point
- Added s2io_vlan_rx_kill_vid entry point function for unregistering vlan.
- Fix to aggregate vlan packets. IP offset is incremented by
4 bytes if the packet contains vlan header.
Signed-off-by: Surjit Reang <surjit.reang@...erion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@...erion.com>
Signed-off-by: Jeff Garzik <jeff@...zik.org>
---
drivers/net/s2io.c | 108 +++++++++++++++++++++++++++++-----------------------
drivers/net/s2io.h | 7 ++-
2 files changed, 65 insertions(+), 50 deletions(-)
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 5fab7d7..dcad502 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -386,6 +386,19 @@ static void s2io_vlan_rx_register(struct net_device *dev,
/* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */
static int vlan_strip_flag;
+/* Unregister the vlan */
+static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
+{
+ unsigned long flags;
+ struct s2io_nic *nic = dev->priv;
+
+ spin_lock_irqsave(&nic->tx_lock, flags);
+ if (nic->vlgrp)
+ vlan_group_set_device(nic->vlgrp, vid, NULL);
+
+ spin_unlock_irqrestore(&nic->tx_lock, flags);
+}
+
/*
* Constants to be programmed into the Xena's registers, to configure
* the XAUI.
@@ -2948,7 +2961,7 @@ static void rx_intr_handler(struct ring_info *ring_data)
struct lro *lro = &nic->lro0_n[i];
if (lro->in_use) {
update_L3L4_header(nic, lro);
- queue_rx_frame(lro->parent);
+ queue_rx_frame(lro->parent, lro->vlan_tag);
clear_lro_session(lro);
}
}
@@ -7371,7 +7384,8 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
{
lro_append_pkt(sp, lro,
skb, tcp_len);
- queue_rx_frame(lro->parent);
+ queue_rx_frame(lro->parent,
+ lro->vlan_tag);
clear_lro_session(lro);
sp->mac_control.stats_info->
sw_stat.flush_max_pkts++;
@@ -7382,7 +7396,8 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
lro->frags_len;
sp->mac_control.stats_info->
sw_stat.sending_both++;
- queue_rx_frame(lro->parent);
+ queue_rx_frame(lro->parent,
+ lro->vlan_tag);
clear_lro_session(lro);
goto send_up;
case 0: /* sessions exceeded */
@@ -7408,31 +7423,12 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
*/
skb->ip_summed = CHECKSUM_NONE;
}
- } else {
+ } else
skb->ip_summed = CHECKSUM_NONE;
- }
+
sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize;
- if (!sp->lro) {
- skb->protocol = eth_type_trans(skb, dev);
- if ((sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2) &&
- vlan_strip_flag)) {
- /* Queueing the vlan frame to the upper layer */
- if (napi)
- vlan_hwaccel_receive_skb(skb, sp->vlgrp,
- RXD_GET_VLAN_TAG(rxdp->Control_2));
- else
- vlan_hwaccel_rx(skb, sp->vlgrp,
- RXD_GET_VLAN_TAG(rxdp->Control_2));
- } else {
- if (napi)
- netif_receive_skb(skb);
- else
- netif_rx(skb);
- }
- } else {
send_up:
- queue_rx_frame(skb);
- }
+ queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
dev->last_rx = jiffies;
aggregate:
atomic_dec(&sp->rx_bufs_left[ring_no]);
@@ -7790,6 +7786,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
dev->vlan_rx_register = s2io_vlan_rx_register;
+ dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid;
/*
* will use eth_mac_addr() for dev->set_mac_address
@@ -8061,7 +8058,8 @@ module_init(s2io_starter);
module_exit(s2io_closer);
static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
- struct tcphdr **tcp, struct RxD_t *rxdp)
+ struct tcphdr **tcp, struct RxD_t *rxdp,
+ struct s2io_nic *sp)
{
int ip_off;
u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
@@ -8072,19 +8070,20 @@ static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
return -1;
}
- /* TODO:
- * By default the VLAN field in the MAC is stripped by the card, if this
- * feature is turned off in rx_pa_cfg register, then the ip_off field
- * has to be shifted by a further 2 bytes
- */
- switch (l2_type) {
- case 0: /* DIX type */
- case 4: /* DIX type with VLAN */
- ip_off = HEADER_ETHERNET_II_802_3_SIZE;
- break;
+ /* Checking for DIX type or DIX type with VLAN */
+ if ((l2_type == 0)
+ || (l2_type == 4)) {
+ ip_off = HEADER_ETHERNET_II_802_3_SIZE;
+ /*
+ * If vlan stripping is disabled and the frame is VLAN tagged,
+ * shift the offset by the VLAN header size bytes.
+ */
+ if ((!vlan_strip_flag) &&
+ (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
+ ip_off += HEADER_VLAN_SIZE;
+ } else {
/* LLC, SNAP etc are considered non-mergeable */
- default:
- return -1;
+ return -1;
}
*ip = (struct iphdr *)((u8 *)buffer + ip_off);
@@ -8111,7 +8110,7 @@ static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
}
static void initiate_new_session(struct lro *lro, u8 *l2h,
- struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len)
+ struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len, u16 vlan_tag)
{
DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
lro->l2h = l2h;
@@ -8122,6 +8121,7 @@ static void initiate_new_session(struct lro *lro, u8 *l2h,
lro->sg_num = 1;
lro->total_len = ntohs(ip->tot_len);
lro->frags_len = 0;
+ lro->vlan_tag = vlan_tag;
/*
* check if we saw TCP timestamp. Other consistency checks have
* already been done.
@@ -8253,15 +8253,16 @@ s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
struct iphdr *ip;
struct tcphdr *tcph;
int ret = 0, i;
+ u16 vlan_tag = 0;
if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
- rxdp))) {
+ rxdp, sp))) {
DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n",
ip->saddr, ip->daddr);
- } else {
+ } else
return ret;
- }
+ vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
tcph = (struct tcphdr *)*tcp;
*tcp_len = get_l4_pyld_length(ip, tcph);
for (i=0; i<MAX_LRO_SESSIONS; i++) {
@@ -8321,7 +8322,8 @@ s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
switch (ret) {
case 3:
- initiate_new_session(*lro, buffer, ip, tcph, *tcp_len);
+ initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
+ vlan_tag);
break;
case 2:
update_L3L4_header(sp, *lro);
@@ -8349,15 +8351,25 @@ static void clear_lro_session(struct lro *lro)
memset(lro, 0, lro_struct_size);
}
-static void queue_rx_frame(struct sk_buff *skb)
+static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
{
struct net_device *dev = skb->dev;
+ struct s2io_nic *sp = dev->priv;
skb->protocol = eth_type_trans(skb, dev);
- if (napi)
- netif_receive_skb(skb);
- else
- netif_rx(skb);
+ if (sp->vlgrp && vlan_tag
+ && (vlan_strip_flag)) {
+ /* Queueing the vlan frame to the upper layer */
+ if (sp->config.napi)
+ vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);
+ else
+ vlan_hwaccel_rx(skb, sp->vlgrp, vlan_tag);
+ } else {
+ if (sp->config.napi)
+ netif_receive_skb(skb);
+ else
+ netif_rx(skb);
+ }
}
static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 9f6016c..2cbbb83 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -534,6 +534,7 @@ struct RxD_t {
#define RXD_OWN_XENA s2BIT(7)
#define RXD_T_CODE (s2BIT(12)|s2BIT(13)|s2BIT(14)|s2BIT(15))
#define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
+#define RXD_FRAME_VLAN_TAG s2BIT(24)
#define RXD_FRAME_PROTO_IPV4 s2BIT(27)
#define RXD_FRAME_PROTO_IPV6 s2BIT(28)
#define RXD_FRAME_IP_FRAG s2BIT(29)
@@ -808,10 +809,12 @@ struct lro {
int sg_num;
int in_use;
__be16 window;
+ u16 vlan_tag;
u32 cur_tsval;
u32 cur_tsecr;
u8 saw_ts;
-};
+} ____cacheline_aligned;
+
/* These flags represent the devices temporary state */
enum s2io_device_state_t
@@ -1087,7 +1090,7 @@ static int
s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
struct RxD_t *rxdp, struct s2io_nic *sp);
static void clear_lro_session(struct lro *lro);
-static void queue_rx_frame(struct sk_buff *skb);
+static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag);
static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
struct sk_buff *skb, u32 tcp_len);
--
1.5.4.rc5
--
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