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Merge branch 'upstream-next-davem' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

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This commit is contained in:
David S. Miller 2008-05-29 03:31:03 -07:00
commit a5b17df04c
25 changed files with 1216 additions and 470 deletions
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86
Documentation/networking/bonding.txt
View File

@ -289,35 +289,73 @@ downdelay
fail_over_mac
Specifies whether active-backup mode should set all slaves to
the same MAC address (the traditional behavior), or, when
enabled, change the bond's MAC address when changing the
active interface (i.e., fail over the MAC address itself).
the same MAC address at enslavement (the traditional
behavior), or, when enabled, perform special handling of the
bond's MAC address in accordance with the selected policy.
Fail over MAC is useful for devices that cannot ever alter
their MAC address, or for devices that refuse incoming
broadcasts with their own source MAC (which interferes with
the ARP monitor).
Possible values are:
The down side of fail over MAC is that every device on the
network must be updated via gratuitous ARP, vs. just updating
a switch or set of switches (which often takes place for any
traffic, not just ARP traffic, if the switch snoops incoming
traffic to update its tables) for the traditional method. If
the gratuitous ARP is lost, communication may be disrupted.
none or 0
When fail over MAC is used in conjuction with the mii monitor,
devices which assert link up prior to being able to actually
transmit and receive are particularly susecptible to loss of
the gratuitous ARP, and an appropriate updelay setting may be
required.
This setting disables fail_over_mac, and causes
bonding to set all slaves of an active-backup bond to
the same MAC address at enslavement time. This is the
default.
A value of 0 disables fail over MAC, and is the default. A
value of 1 enables fail over MAC. This option is enabled
automatically if the first slave added cannot change its MAC
address. This option may be modified via sysfs only when no
slaves are present in the bond.
active or 1
This option was added in bonding version 3.2.0.
The "active" fail_over_mac policy indicates that the
MAC address of the bond should always be the MAC
address of the currently active slave. The MAC
address of the slaves is not changed; instead, the MAC
address of the bond changes during a failover.
This policy is useful for devices that cannot ever
alter their MAC address, or for devices that refuse
incoming broadcasts with their own source MAC (which
interferes with the ARP monitor).
The down side of this policy is that every device on
the network must be updated via gratuitous ARP,
vs. just updating a switch or set of switches (which
often takes place for any traffic, not just ARP
traffic, if the switch snoops incoming traffic to
update its tables) for the traditional method. If the
gratuitous ARP is lost, communication may be
disrupted.
When this policy is used in conjuction with the mii
monitor, devices which assert link up prior to being
able to actually transmit and receive are particularly
susecptible to loss of the gratuitous ARP, and an
appropriate updelay setting may be required.
follow or 2
The "follow" fail_over_mac policy causes the MAC
address of the bond to be selected normally (normally
the MAC address of the first slave added to the bond).
However, the second and subsequent slaves are not set
to this MAC address while they are in a backup role; a
slave is programmed with the bond's MAC address at
failover time (and the formerly active slave receives
the newly active slave's MAC address).
This policy is useful for multiport devices that
either become confused or incur a performance penalty
when multiple ports are programmed with the same MAC
address.
The default policy is none, unless the first slave cannot
change its MAC address, in which case the active policy is
selected by default.
This option may be modified via sysfs only when no slaves are
present in the bond.
This option was added in bonding version 3.2.0. The "follow"
policy was added in bonding version 3.3.0.
lacp_rate

15
drivers/net/3c509.c
View File

@ -413,7 +413,7 @@ static int __devinit el3_pnp_probe(struct pnp_dev *pdev,
{
short i;
int ioaddr, irq, if_port;
u16 phys_addr[3];
__be16 phys_addr[3];
struct net_device *dev = NULL;
int err;
@ -605,7 +605,7 @@ static int __init el3_mca_probe(struct device *device)
short i;
int ioaddr, irq, if_port;
u16 phys_addr[3];
__be16 phys_addr[3];
struct net_device *dev = NULL;
u_char pos4, pos5;
struct mca_device *mdev = to_mca_device(device);
@ -635,14 +635,13 @@ static int __init el3_mca_probe(struct device *device)
printk(KERN_DEBUG "3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
}
EL3WINDOW(0);
for (i = 0; i < 3; i++) {
phys_addr[i] = htons(read_eeprom(ioaddr, i));
}
for (i = 0; i < 3; i++)
phys_addr[i] = htons(read_eeprom(ioaddr, i));
dev = alloc_etherdev(sizeof (struct el3_private));
if (dev == NULL) {
release_region(ioaddr, EL3_IO_EXTENT);
return -ENOMEM;
release_region(ioaddr, EL3_IO_EXTENT);
return -ENOMEM;
}
netdev_boot_setup_check(dev);
@ -668,7 +667,7 @@ static int __init el3_eisa_probe (struct device *device)
{
short i;
int ioaddr, irq, if_port;
u16 phys_addr[3];
__be16 phys_addr[3];
struct net_device *dev = NULL;
struct eisa_device *edev;
int err;

4
drivers/net/3c515.c
View File

@ -572,12 +572,16 @@ static int corkscrew_setup(struct net_device *dev, int ioaddr,
int irq;
DECLARE_MAC_BUF(mac);
#ifdef __ISAPNP__
if (idev) {
irq = pnp_irq(idev, 0);
vp->dev = &idev->dev;
} else {
irq = inw(ioaddr + 0x2002) & 15;
}
#else
irq = inw(ioaddr + 0x2002) & 15;
#endif
dev->base_addr = ioaddr;
dev->irq = irq;

1
drivers/net/Kconfig
View File

@ -2410,6 +2410,7 @@ config CHELSIO_T3
tristate "Chelsio Communications T3 10Gb Ethernet support"
depends on PCI
select FW_LOADER
select INET_LRO
help
This driver supports Chelsio T3-based gigabit and 10Gb Ethernet
adapters.

5
drivers/net/atlx/atl1.c
View File

@ -1876,7 +1876,8 @@ static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
skb = netdev_alloc_skb(adapter->netdev,
adapter->rx_buffer_len + NET_IP_ALIGN);
if (unlikely(!skb)) {
/* Better luck next round */
adapter->net_stats.rx_dropped++;
@ -2135,7 +2136,7 @@ static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
return -1;
}
if (skb->protocol == ntohs(ETH_P_IP)) {
if (skb->protocol == htons(ETH_P_IP)) {
struct iphdr *iph = ip_hdr(skb);
real_len = (((unsigned char *)iph - skb->data) +

742
drivers/net/bonding/bond_main.c
View File

File diff suppressed because it is too large Load Diff

81
drivers/net/bonding/bond_sysfs.c
View File

@ -50,6 +50,7 @@ extern struct bond_parm_tbl bond_mode_tbl[];
extern struct bond_parm_tbl bond_lacp_tbl[];
extern struct bond_parm_tbl xmit_hashtype_tbl[];
extern struct bond_parm_tbl arp_validate_tbl[];
extern struct bond_parm_tbl fail_over_mac_tbl[];
static int expected_refcount = -1;
static struct class *netdev_class;
@ -111,7 +112,6 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
char *ifname;
int rv, res = count;
struct bonding *bond;
struct bonding *nxt;
sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
ifname = command + 1;
@ -122,7 +122,7 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
if (command[0] == '+') {
printk(KERN_INFO DRV_NAME
": %s is being created...\n", ifname);
rv = bond_create(ifname, &bonding_defaults, &bond);
rv = bond_create(ifname, &bonding_defaults);
if (rv) {
printk(KERN_INFO DRV_NAME ": Bond creation failed.\n");
res = rv;
@ -134,7 +134,7 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
rtnl_lock();
down_write(&bonding_rwsem);
list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
list_for_each_entry(bond, &bond_dev_list, bond_list)
if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
/* check the ref count on the bond's kobject.
* If it's > expected, then there's a file open,
@ -548,42 +548,37 @@ static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attrib
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.fail_over_mac) + 1;
return sprintf(buf, "%s %d\n",
fail_over_mac_tbl[bond->params.fail_over_mac].modename,
bond->params.fail_over_mac);
}
static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
{
int new_value;
int ret = count;
struct bonding *bond = to_bond(d);
if (bond->slave_cnt != 0) {
printk(KERN_ERR DRV_NAME
": %s: Can't alter fail_over_mac with slaves in bond.\n",
bond->dev->name);
ret = -EPERM;
goto out;
return -EPERM;
}
if (sscanf(buf, "%d", &new_value) != 1) {
new_value = bond_parse_parm(buf, fail_over_mac_tbl);
if (new_value < 0) {
printk(KERN_ERR DRV_NAME
": %s: no fail_over_mac value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
": %s: Ignoring invalid fail_over_mac value %s.\n",
bond->dev->name, buf);
return -EINVAL;
}
if ((new_value == 0) || (new_value == 1)) {
bond->params.fail_over_mac = new_value;
printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %d.\n",
bond->dev->name, new_value);
} else {
printk(KERN_INFO DRV_NAME
": %s: Ignoring invalid fail_over_mac value %d.\n",
bond->dev->name, new_value);
}
out:
return ret;
bond->params.fail_over_mac = new_value;
printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
bond->dev->name, fail_over_mac_tbl[new_value].modename,
new_value);
return count;
}
static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
@ -951,6 +946,45 @@ out:
}
static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
/*
* Show and set the number of grat ARP to send after a failover event.
*/
static ssize_t bonding_show_n_grat_arp(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.num_grat_arp);
}
static ssize_t bonding_store_n_grat_arp(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count)
{
int new_value, ret = count;
struct bonding *bond = to_bond(d);
if (sscanf(buf, "%d", &new_value) != 1) {
printk(KERN_ERR DRV_NAME
": %s: no num_grat_arp value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0 || new_value > 255) {
printk(KERN_ERR DRV_NAME
": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n",
bond->dev->name, new_value);
ret = -EINVAL;
goto out;
} else {
bond->params.num_grat_arp = new_value;
}
out:
return ret;
}
static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp);
/*
* Show and set the MII monitor interval. There are two tricky bits
* here. First, if MII monitoring is activated, then we must disable
@ -1388,6 +1422,7 @@ static struct attribute *per_bond_attrs[] = {
&dev_attr_updelay.attr,
&dev_attr_lacp_rate.attr,
&dev_attr_xmit_hash_policy.attr,
&dev_attr_num_grat_arp.attr,
&dev_attr_miimon.attr,
&dev_attr_primary.attr,
&dev_attr_use_carrier.attr,

13
drivers/net/bonding/bonding.h
View File

@ -125,6 +125,7 @@ struct bond_params {
int mode;
int xmit_policy;
int miimon;
int num_grat_arp;
int arp_interval;
int arp_validate;
int use_carrier;
@ -157,6 +158,7 @@ struct slave {
unsigned long jiffies;
unsigned long last_arp_rx;
s8 link; /* one of BOND_LINK_XXXX */
s8 new_link;
s8 state; /* one of BOND_STATE_XXXX */
u32 original_flags;
u32 original_mtu;
@ -168,6 +170,11 @@ struct slave {
struct tlb_slave_info tlb_info;
};
/*
* Link pseudo-state only used internally by monitors
*/
#define BOND_LINK_NOCHANGE -1
/*
* Here are the locking policies for the two bonding locks:
*
@ -241,6 +248,10 @@ static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
return (struct bonding *)slave->dev->master->priv;
}
#define BOND_FOM_NONE 0
#define BOND_FOM_ACTIVE 1
#define BOND_FOM_FOLLOW 2
#define BOND_ARP_VALIDATE_NONE 0
#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
@ -301,7 +312,7 @@ static inline void bond_unset_master_alb_flags(struct bonding *bond)
struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr);
int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
int bond_create(char *name, struct bond_params *params, struct bonding **newbond);
int bond_create(char *name, struct bond_params *params);
void bond_destroy(struct bonding *bond);
int bond_release_and_destroy(struct net_device *bond_dev, struct net_device *slave_dev);
int bond_create_sysfs(void);

18
drivers/net/cxgb3/adapter.h
View File

@ -42,6 +42,7 @@
#include <linux/cache.h>
#include <linux/mutex.h>
#include <linux/bitops.h>
#include <linux/inet_lro.h>
#include "t3cdev.h"
#include <asm/io.h>
@ -92,6 +93,7 @@ struct sge_fl { /* SGE per free-buffer list state */
unsigned int gen; /* free list generation */
struct fl_pg_chunk pg_chunk;/* page chunk cache */
unsigned int use_pages; /* whether FL uses pages or sk_buffs */
unsigned int order; /* order of page allocations */
struct rx_desc *desc; /* address of HW Rx descriptor ring */
struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */
dma_addr_t phys_addr; /* physical address of HW ring start */
@ -116,12 +118,15 @@ struct sge_rspq { /* state for an SGE response queue */
unsigned int polling; /* is the queue serviced through NAPI? */
unsigned int holdoff_tmr; /* interrupt holdoff timer in 100ns */
unsigned int next_holdoff; /* holdoff time for next interrupt */
unsigned int rx_recycle_buf; /* whether recycling occurred
within current sop-eop */
struct rsp_desc *desc; /* address of HW response ring */
dma_addr_t phys_addr; /* physical address of the ring */
unsigned int cntxt_id; /* SGE context id for the response q */
spinlock_t lock; /* guards response processing */
struct sk_buff *rx_head; /* offload packet receive queue head */
struct sk_buff *rx_tail; /* offload packet receive queue tail */
struct sk_buff *pg_skb; /* used to build frag list in napi handler */
unsigned long offload_pkts;
unsigned long offload_bundles;
@ -169,16 +174,29 @@ enum { /* per port SGE statistics */
SGE_PSTAT_TX_CSUM, /* # of TX checksum offloads */
SGE_PSTAT_VLANEX, /* # of VLAN tag extractions */
SGE_PSTAT_VLANINS, /* # of VLAN tag insertions */
SGE_PSTAT_LRO_AGGR, /* # of page chunks added to LRO sessions */
SGE_PSTAT_LRO_FLUSHED, /* # of flushed LRO sessions */
SGE_PSTAT_LRO_NO_DESC, /* # of overflown LRO sessions */
SGE_PSTAT_MAX /* must be last */
};
#define T3_MAX_LRO_SES 8
#define T3_MAX_LRO_MAX_PKTS 64
struct sge_qset { /* an SGE queue set */
struct adapter *adap;
struct napi_struct napi;
struct sge_rspq rspq;
struct sge_fl fl[SGE_RXQ_PER_SET];
struct sge_txq txq[SGE_TXQ_PER_SET];
struct net_lro_mgr lro_mgr;
struct net_lro_desc lro_desc[T3_MAX_LRO_SES];
struct skb_frag_struct *lro_frag_tbl;
int lro_nfrags;
int lro_enabled;
int lro_frag_len;
void *lro_va;
struct net_device *netdev;
unsigned long txq_stopped; /* which Tx queues are stopped */
struct timer_list tx_reclaim_timer; /* reclaims TX buffers */

1
drivers/net/cxgb3/common.h
View File

@ -351,6 +351,7 @@ struct tp_params {
struct qset_params { /* SGE queue set parameters */
unsigned int polling; /* polling/interrupt service for rspq */
unsigned int lro; /* large receive offload */
unsigned int coalesce_usecs; /* irq coalescing timer */
unsigned int rspq_size; /* # of entries in response queue */
unsigned int fl_size; /* # of entries in regular free list */

1
drivers/net/cxgb3/cxgb3_ioctl.h
View File

@ -90,6 +90,7 @@ struct ch_qset_params {
int32_t fl_size[2];
int32_t intr_lat;
int32_t polling;
int32_t lro;
int32_t cong_thres;
};

19
drivers/net/cxgb3/cxgb3_main.c
View File

@ -1212,6 +1212,9 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
"VLANinsertions ",
"TxCsumOffload ",
"RxCsumGood ",
"LroAggregated ",
"LroFlushed ",
"LroNoDesc ",
"RxDrops ",
"CheckTXEnToggled ",
@ -1340,6 +1343,9 @@ static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_AGGR);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_FLUSHED);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_NO_DESC);
*data++ = s->rx_cong_drops;
*data++ = s->num_toggled;
@ -1558,6 +1564,13 @@ static int set_rx_csum(struct net_device *dev, u32 data)
struct port_info *p = netdev_priv(dev);
p->rx_csum_offload = data;
if (!data) {
struct adapter *adap = p->adapter;
int i;
for (i = p->first_qset; i < p->first_qset + p->nqsets; i++)
adap->sge.qs[i].lro_enabled = 0;
}
return 0;
}
@ -1830,6 +1843,11 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
}
}
}
if (t.lro >= 0) {
struct sge_qset *qs = &adapter->sge.qs[t.qset_idx];
q->lro = t.lro;
qs->lro_enabled = t.lro;
}
break;
}
case CHELSIO_GET_QSET_PARAMS:{
@ -1849,6 +1867,7 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
t.fl_size[0] = q->fl_size;
t.fl_size[1] = q->jumbo_size;
t.polling = q->polling;
t.lro = q->lro;
t.intr_lat = q->coalesce_usecs;
t.cong_thres = q->cong_thres;

391
drivers/net/cxgb3/sge.c
View File

@ -55,6 +55,9 @@
* directly.
*/
#define FL0_PG_CHUNK_SIZE 2048
#define FL0_PG_ORDER 0
#define FL1_PG_CHUNK_SIZE (PAGE_SIZE > 8192 ? 16384 : 8192)
#define FL1_PG_ORDER (PAGE_SIZE > 8192 ? 0 : 1)
#define SGE_RX_DROP_THRES 16
@ -359,7 +362,7 @@ static void free_rx_bufs(struct pci_dev *pdev, struct sge_fl *q)
}
if (q->pg_chunk.page) {
__free_page(q->pg_chunk.page);
__free_pages(q->pg_chunk.page, q->order);
q->pg_chunk.page = NULL;
}
}
@ -376,13 +379,16 @@ static void free_rx_bufs(struct pci_dev *pdev, struct sge_fl *q)
* Add a buffer of the given length to the supplied HW and SW Rx
* descriptors.
*/
static inline void add_one_rx_buf(void *va, unsigned int len,
struct rx_desc *d, struct rx_sw_desc *sd,
unsigned int gen, struct pci_dev *pdev)
static inline int add_one_rx_buf(void *va, unsigned int len,
struct rx_desc *d, struct rx_sw_desc *sd,
unsigned int gen, struct pci_dev *pdev)
{
dma_addr_t mapping;
mapping = pci_map_single(pdev, va, len, PCI_DMA_FROMDEVICE);
if (unlikely(pci_dma_mapping_error(mapping)))
return -ENOMEM;
pci_unmap_addr_set(sd, dma_addr, mapping);
d->addr_lo = cpu_to_be32(mapping);
@ -390,12 +396,14 @@ static inline void add_one_rx_buf(void *va, unsigned int len,
wmb();
d->len_gen = cpu_to_be32(V_FLD_GEN1(gen));
d->gen2 = cpu_to_be32(V_FLD_GEN2(gen));
return 0;
}
static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp)
static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp,
unsigned int order)
{
if (!q->pg_chunk.page) {
q->pg_chunk.page = alloc_page(gfp);
q->pg_chunk.page = alloc_pages(gfp, order);
if (unlikely(!q->pg_chunk.page))
return -ENOMEM;
q->pg_chunk.va = page_address(q->pg_chunk.page);
@ -404,7 +412,7 @@ static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp)
sd->pg_chunk = q->pg_chunk;
q->pg_chunk.offset += q->buf_size;
if (q->pg_chunk.offset == PAGE_SIZE)
if (q->pg_chunk.offset == (PAGE_SIZE << order))
q->pg_chunk.page = NULL;
else {
q->pg_chunk.va += q->buf_size;
@ -424,15 +432,18 @@ static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp)
* allocated with the supplied gfp flags. The caller must assure that
* @n does not exceed the queue's capacity.
*/
static void refill_fl(struct adapter *adap, struct sge_fl *q, int n, gfp_t gfp)
static int refill_fl(struct adapter *adap, struct sge_fl *q, int n, gfp_t gfp)
{
void *buf_start;
struct rx_sw_desc *sd = &q->sdesc[q->pidx];
struct rx_desc *d = &q->desc[q->pidx];
unsigned int count = 0;
while (n--) {
int err;
if (q->use_pages) {
if (unlikely(alloc_pg_chunk(q, sd, gfp))) {
if (unlikely(alloc_pg_chunk(q, sd, gfp, q->order))) {
nomem: q->alloc_failed++;
break;
}
@ -447,8 +458,16 @@ nomem: q->alloc_failed++;
buf_start = skb->data;
}
add_one_rx_buf(buf_start, q->buf_size, d, sd, q->gen,
adap->pdev);
err = add_one_rx_buf(buf_start, q->buf_size, d, sd, q->gen,
adap->pdev);
if (unlikely(err)) {
if (!q->use_pages) {
kfree_skb(sd->skb);
sd->skb = NULL;
}
break;
}
d++;
sd++;
if (++q->pidx == q->size) {
@ -458,14 +477,19 @@ nomem: q->alloc_failed++;
d = q->desc;
}
q->credits++;
count++;
}
wmb();
t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
if (likely(count))
t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
return count;
}
static inline void __refill_fl(struct adapter *adap, struct sge_fl *fl)
{
refill_fl(adap, fl, min(16U, fl->size - fl->credits), GFP_ATOMIC);
refill_fl(adap, fl, min(16U, fl->size - fl->credits),
GFP_ATOMIC | __GFP_COMP);
}
/**
@ -560,6 +584,8 @@ static void t3_reset_qset(struct sge_qset *q)
memset(q->txq, 0, sizeof(struct sge_txq) * SGE_TXQ_PER_SET);
q->txq_stopped = 0;
memset(&q->tx_reclaim_timer, 0, sizeof(q->tx_reclaim_timer));
kfree(q->lro_frag_tbl);
q->lro_nfrags = q->lro_frag_len = 0;
}
@ -740,19 +766,22 @@ use_orig_buf:
* that are page chunks rather than sk_buffs.
*/
static struct sk_buff *get_packet_pg(struct adapter *adap, struct sge_fl *fl,
unsigned int len, unsigned int drop_thres)
struct sge_rspq *q, unsigned int len,
unsigned int drop_thres)
{
struct sk_buff *skb = NULL;
struct sk_buff *newskb, *skb;
struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
if (len <= SGE_RX_COPY_THRES) {
skb = alloc_skb(len, GFP_ATOMIC);
if (likely(skb != NULL)) {
__skb_put(skb, len);
newskb = skb = q->pg_skb;
if (!skb && (len <= SGE_RX_COPY_THRES)) {
newskb = alloc_skb(len, GFP_ATOMIC);
if (likely(newskb != NULL)) {
__skb_put(newskb, len);
pci_dma_sync_single_for_cpu(adap->pdev,
pci_unmap_addr(sd, dma_addr), len,
PCI_DMA_FROMDEVICE);
memcpy(skb->data, sd->pg_chunk.va, len);
memcpy(newskb->data, sd->pg_chunk.va, len);
pci_dma_sync_single_for_device(adap->pdev,
pci_unmap_addr(sd, dma_addr), len,
PCI_DMA_FROMDEVICE);
@ -761,14 +790,16 @@ static struct sk_buff *get_packet_pg(struct adapter *adap, struct sge_fl *fl,
recycle:
fl->credits--;
recycle_rx_buf(adap, fl, fl->cidx);
return skb;
q->rx_recycle_buf++;
return newskb;
}
if (unlikely(fl->credits <= drop_thres))
if (unlikely(q->rx_recycle_buf || (!skb && fl->credits <= drop_thres)))
goto recycle;
skb = alloc_skb(SGE_RX_PULL_LEN, GFP_ATOMIC);
if (unlikely(!skb)) {
if (!skb)
newskb = alloc_skb(SGE_RX_PULL_LEN, GFP_ATOMIC);
if (unlikely(!newskb)) {
if (!drop_thres)
return NULL;
goto recycle;
@ -776,21 +807,29 @@ recycle:
pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
fl->buf_size, PCI_DMA_FROMDEVICE);
__skb_put(skb, SGE_RX_PULL_LEN);
memcpy(skb->data, sd->pg_chunk.va, SGE_RX_PULL_LEN);
skb_fill_page_desc(skb, 0, sd->pg_chunk.page,
sd->pg_chunk.offset + SGE_RX_PULL_LEN,
len - SGE_RX_PULL_LEN);
skb->len = len;
skb->data_len = len - SGE_RX_PULL_LEN;
skb->truesize += skb->data_len;
if (!skb) {
__skb_put(newskb, SGE_RX_PULL_LEN);
memcpy(newskb->data, sd->pg_chunk.va, SGE_RX_PULL_LEN);
skb_fill_page_desc(newskb, 0, sd->pg_chunk.page,
sd->pg_chunk.offset + SGE_RX_PULL_LEN,
len - SGE_RX_PULL_LEN);
newskb->len = len;
newskb->data_len = len - SGE_RX_PULL_LEN;
} else {
skb_fill_page_desc(newskb, skb_shinfo(newskb)->nr_frags,
sd->pg_chunk.page,
sd->pg_chunk.offset, len);
newskb->len += len;
newskb->data_len += len;
}
newskb->truesize += newskb->data_len;
fl->credits--;
/*
* We do not refill FLs here, we let the caller do it to overlap a
* prefetch.
*/
return skb;
return newskb;
}
/**
@ -1831,9 +1870,10 @@ static void restart_tx(struct sge_qset *qs)
* if it was immediate data in a response.
*/
static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
struct sk_buff *skb, int pad)
struct sk_buff *skb, int pad, int lro)
{
struct cpl_rx_pkt *p = (struct cpl_rx_pkt *)(skb->data + pad);
struct sge_qset *qs = rspq_to_qset(rq);
struct port_info *pi;
skb_pull(skb, sizeof(*p) + pad);
@ -1850,18 +1890,202 @@ static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
if (unlikely(p->vlan_valid)) {
struct vlan_group *grp = pi->vlan_grp;
rspq_to_qset(rq)->port_stats[SGE_PSTAT_VLANEX]++;
qs->port_stats[SGE_PSTAT_VLANEX]++;
if (likely(grp))
__vlan_hwaccel_rx(skb, grp, ntohs(p->vlan),
rq->polling);
if (lro)
lro_vlan_hwaccel_receive_skb(&qs->lro_mgr, skb,
grp,
ntohs(p->vlan),
p);
else
__vlan_hwaccel_rx(skb, grp, ntohs(p->vlan),
rq->polling);
else
dev_kfree_skb_any(skb);
} else if (rq->polling)
netif_receive_skb(skb);
else
} else if (rq->polling) {
if (lro)
lro_receive_skb(&qs->lro_mgr, skb, p);
else
netif_receive_skb(skb);
} else
netif_rx(skb);
}
static inline int is_eth_tcp(u32 rss)
{
return G_HASHTYPE(ntohl(rss)) == RSS_HASH_4_TUPLE;
}
/**
* lro_frame_ok - check if an ingress packet is eligible for LRO
* @p: the CPL header of the packet
*
* Returns true if a received packet is eligible for LRO.
* The following conditions must be true:
* - packet is TCP/IP Ethernet II (checked elsewhere)
* - not an IP fragment
* - no IP options
* - TCP/IP checksums are correct
* - the packet is for this host
*/
static inline int lro_frame_ok(const struct cpl_rx_pkt *p)
{
const struct ethhdr *eh = (struct ethhdr *)(p + 1);
const struct iphdr *ih = (struct iphdr *)(eh + 1);
return (*((u8 *)p + 1) & 0x90) == 0x10 && p->csum == htons(0xffff) &&
eh->h_proto == htons(ETH_P_IP) && ih->ihl == (sizeof(*ih) >> 2);
}
#define TCP_FLAG_MASK (TCP_FLAG_CWR | TCP_FLAG_ECE | TCP_FLAG_URG |\
TCP_FLAG_ACK | TCP_FLAG_PSH | TCP_FLAG_RST |\
TCP_FLAG_SYN | TCP_FLAG_FIN)
#define TSTAMP_WORD ((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |\
(TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)
/**
* lro_segment_ok - check if a TCP segment is eligible for LRO
* @tcph: the TCP header of the packet
*
* Returns true if a TCP packet is eligible for LRO. This requires that
* the packet have only the ACK flag set and no TCP options besides
* time stamps.
*/
static inline int lro_segment_ok(const struct tcphdr *tcph)
{
int optlen;
if (unlikely((tcp_flag_word(tcph) & TCP_FLAG_MASK) != TCP_FLAG_ACK))
return 0;
optlen = (tcph->doff << 2) - sizeof(*tcph);
if (optlen) {
const u32 *opt = (const u32 *)(tcph + 1);
if (optlen != TCPOLEN_TSTAMP_ALIGNED ||
*opt != htonl(TSTAMP_WORD) || !opt[2])
return 0;
}
return 1;
}
static int t3_get_lro_header(void **eh, void **iph, void **tcph,
u64 *hdr_flags, void *priv)
{
const struct cpl_rx_pkt *cpl = priv;
if (!lro_frame_ok(cpl))
return -1;
*eh = (struct ethhdr *)(cpl + 1);
*iph = (struct iphdr *)((struct ethhdr *)*eh + 1);
*tcph = (struct tcphdr *)((struct iphdr *)*iph + 1);
if (!lro_segment_ok(*tcph))
return -1;
*hdr_flags = LRO_IPV4 | LRO_TCP;
return 0;
}
static int t3_get_skb_header(struct sk_buff *skb,
void **iph, void **tcph, u64 *hdr_flags,
void *priv)
{
void *eh;
return t3_get_lro_header(&eh, iph, tcph, hdr_flags, priv);
}
static int t3_get_frag_header(struct skb_frag_struct *frag, void **eh,
void **iph, void **tcph, u64 *hdr_flags,
void *priv)
{
return t3_get_lro_header(eh, iph, tcph, hdr_flags, priv);
}
/**
* lro_add_page - add a page chunk to an LRO session
* @adap: the adapter
* @qs: the associated queue set
* @fl: the free list containing the page chunk to add
* @len: packet length
* @complete: Indicates the last fragment of a frame
*
* Add a received packet contained in a page chunk to an existing LRO
* session.
*/
static void lro_add_page(struct adapter *adap, struct sge_qset *qs,
struct sge_fl *fl, int len, int complete)
{
struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
struct cpl_rx_pkt *cpl;
struct skb_frag_struct *rx_frag = qs->lro_frag_tbl;
int nr_frags = qs->lro_nfrags, frag_len = qs->lro_frag_len;
int offset = 0;
if (!nr_frags) {
offset = 2 + sizeof(struct cpl_rx_pkt);
qs->lro_va = cpl = sd->pg_chunk.va + 2;
}
fl->credits--;
len -= offset;
pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
fl->buf_size, PCI_DMA_FROMDEVICE);
rx_frag += nr_frags;
rx_frag->page = sd->pg_chunk.page;
rx_frag->page_offset = sd->pg_chunk.offset + offset;
rx_frag->size = len;
frag_len += len;
qs->lro_nfrags++;
qs->lro_frag_len = frag_len;
if (!complete)
return;
qs->lro_nfrags = qs->lro_frag_len = 0;
cpl = qs->lro_va;
if (unlikely(cpl->vlan_valid)) {
struct net_device *dev = qs->netdev;
struct port_info *pi = netdev_priv(dev);
struct vlan_group *grp = pi->vlan_grp;
if (likely(grp != NULL)) {
lro_vlan_hwaccel_receive_frags(&qs->lro_mgr,
qs->lro_frag_tbl,
frag_len, frag_len,
grp, ntohs(cpl->vlan),
cpl, 0);
return;
}
}
lro_receive_frags(&qs->lro_mgr, qs->lro_frag_tbl,
frag_len, frag_len, cpl, 0);
}
/**
* init_lro_mgr - initialize a LRO manager object
* @lro_mgr: the LRO manager object
*/
static void init_lro_mgr(struct sge_qset *qs, struct net_lro_mgr *lro_mgr)
{
lro_mgr->dev = qs->netdev;
lro_mgr->features = LRO_F_NAPI;
lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
lro_mgr->max_desc = T3_MAX_LRO_SES;
lro_mgr->lro_arr = qs->lro_desc;
lro_mgr->get_frag_header = t3_get_frag_header;
lro_mgr->get_skb_header = t3_get_skb_header;
lro_mgr->max_aggr = T3_MAX_LRO_MAX_PKTS;
if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
lro_mgr->max_aggr = MAX_SKB_FRAGS;
}
/**
* handle_rsp_cntrl_info - handles control information in a response
* @qs: the queue set corresponding to the response
@ -1947,6 +2171,12 @@ static inline int is_new_response(const struct rsp_desc *r,
return (r->intr_gen & F_RSPD_GEN2) == q->gen;
}
static inline void clear_rspq_bufstate(struct sge_rspq * const q)
{
q->pg_skb = NULL;
q->rx_recycle_buf = 0;
}
#define RSPD_GTS_MASK (F_RSPD_TXQ0_GTS | F_RSPD_TXQ1_GTS)
#define RSPD_CTRL_MASK (RSPD_GTS_MASK | \
V_RSPD_TXQ0_CR(M_RSPD_TXQ0_CR) | \
@ -1984,10 +2214,11 @@ static int process_responses(struct adapter *adap, struct sge_qset *qs,
q->next_holdoff = q->holdoff_tmr;
while (likely(budget_left && is_new_response(r, q))) {
int eth, ethpad = 2;
int packet_complete, eth, ethpad = 2, lro = qs->lro_enabled;
struct sk_buff *skb = NULL;
u32 len, flags = ntohl(r->flags);
__be32 rss_hi = *(const __be32 *)r, rss_lo = r->rss_hdr.rss_hash_val;
__be32 rss_hi = *(const __be32 *)r,
rss_lo = r->rss_hdr.rss_hash_val;
eth = r->rss_hdr.opcode == CPL_RX_PKT;
@ -2015,6 +2246,9 @@ no_mem:
} else if ((len = ntohl(r->len_cq)) != 0) {
struct sge_fl *fl;
if (eth)
lro = qs->lro_enabled && is_eth_tcp(rss_hi);
fl = (len & F_RSPD_FLQ) ? &qs->fl[1] : &qs->fl[0];
if (fl->use_pages) {
void *addr = fl->sdesc[fl->cidx].pg_chunk.va;
@ -2024,9 +2258,18 @@ no_mem:
prefetch(addr + L1_CACHE_BYTES);
#endif
__refill_fl(adap, fl);
if (lro > 0) {
lro_add_page(adap, qs, fl,
G_RSPD_LEN(len),
flags & F_RSPD_EOP);
goto next_fl;
}
skb = get_packet_pg(adap, fl, G_RSPD_LEN(len),
eth ? SGE_RX_DROP_THRES : 0);
skb = get_packet_pg(adap, fl, q,
G_RSPD_LEN(len),
eth ?
SGE_RX_DROP_THRES : 0);
q->pg_skb = skb;
} else
skb = get_packet(adap, fl, G_RSPD_LEN(len),
eth ? SGE_RX_DROP_THRES : 0);
@ -2036,7 +2279,7 @@ no_mem:
q->rx_drops++;
} else if (unlikely(r->rss_hdr.opcode == CPL_TRACE_PKT))
__skb_pull(skb, 2);
next_fl:
if (++fl->cidx == fl->size)
fl->cidx = 0;
} else
@ -2060,9 +2303,13 @@ no_mem:
q->credits = 0;
}
if (likely(skb != NULL)) {
packet_complete = flags &
(F_RSPD_EOP | F_RSPD_IMM_DATA_VALID |
F_RSPD_ASYNC_NOTIF);
if (skb != NULL && packet_complete) {
if (eth)
rx_eth(adap, q, skb, ethpad);
rx_eth(adap, q, skb, ethpad, lro);
else {
q->offload_pkts++;
/* Preserve the RSS info in csum & priority */
@ -2072,11 +2319,19 @@ no_mem:
offload_skbs,
ngathered);
}
if (flags & F_RSPD_EOP)
clear_rspq_bufstate(q);
}
--budget_left;
}
deliver_partial_bundle(&adap->tdev, q, offload_skbs, ngathered);
lro_flush_all(&qs->lro_mgr);
qs->port_stats[SGE_PSTAT_LRO_AGGR] = qs->lro_mgr.stats.aggregated;
qs->port_stats[SGE_PSTAT_LRO_FLUSHED] = qs->lro_mgr.stats.flushed;
qs->port_stats[SGE_PSTAT_LRO_NO_DESC] = qs->lro_mgr.stats.no_desc;
if (sleeping)
check_ring_db(adap, qs, sleeping);
@ -2618,8 +2873,9 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
int irq_vec_idx, const struct qset_params *p,
int ntxq, struct net_device *dev)
{
int i, ret = -ENOMEM;
int i, avail, ret = -ENOMEM;
struct sge_qset *q = &adapter->sge.qs[id];
struct net_lro_mgr *lro_mgr = &q->lro_mgr;
init_qset_cntxt(q, id);
init_timer(&q->tx_reclaim_timer);
@ -2687,11 +2943,23 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
#else
q->fl[0].buf_size = SGE_RX_SM_BUF_SIZE + sizeof(struct cpl_rx_data);
#endif
q->fl[0].use_pages = FL0_PG_CHUNK_SIZE > 0;
#if FL1_PG_CHUNK_SIZE > 0
q->fl[1].buf_size = FL1_PG_CHUNK_SIZE;
#else
q->fl[1].buf_size = is_offload(adapter) ?
(16 * 1024) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) :
MAX_FRAME_SIZE + 2 + sizeof(struct cpl_rx_pkt);
#endif
q->fl[0].use_pages = FL0_PG_CHUNK_SIZE > 0;
q->fl[1].use_pages = FL1_PG_CHUNK_SIZE > 0;
q->fl[0].order = FL0_PG_ORDER;
q->fl[1].order = FL1_PG_ORDER;
q->lro_frag_tbl = kcalloc(MAX_FRAME_SIZE / FL1_PG_CHUNK_SIZE + 1,
sizeof(struct skb_frag_struct),
GFP_KERNEL);
q->lro_nfrags = q->lro_frag_len = 0;
spin_lock_irq(&adapter->sge.reg_lock);
/* FL threshold comparison uses < */
@ -2742,8 +3010,23 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
q->netdev = dev;
t3_update_qset_coalesce(q, p);
refill_fl(adapter, &q->fl[0], q->fl[0].size, GFP_KERNEL);
refill_fl(adapter, &q->fl[1], q->fl[1].size, GFP_KERNEL);
init_lro_mgr(q, lro_mgr);
avail = refill_fl(adapter, &q->fl[0], q->fl[0].size,
GFP_KERNEL | __GFP_COMP);
if (!avail) {
CH_ALERT(adapter, "free list queue 0 initialization failed\n");
goto err;
}
if (avail < q->fl[0].size)
CH_WARN(adapter, "free list queue 0 enabled with %d credits\n",
avail);
avail = refill_fl(adapter, &q->fl[1], q->fl[1].size,
GFP_KERNEL | __GFP_COMP);
if (avail < q->fl[1].size)
CH_WARN(adapter, "free list queue 1 enabled with %d credits\n",
avail);
refill_rspq(adapter, &q->rspq, q->rspq.size - 1);
t3_write_reg(adapter, A_SG_GTS, V_RSPQ(q->rspq.cntxt_id) |
@ -2752,9 +3035,9 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
mod_timer(&q->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
return 0;
err_unlock:
err_unlock:
spin_unlock_irq(&adapter->sge.reg_lock);
err:
err:
t3_free_qset(adapter, q);
return ret;
}
@ -2876,7 +3159,7 @@ void t3_sge_prep(struct adapter *adap, struct sge_params *p)
q->coalesce_usecs = 5;
q->rspq_size = 1024;
q->fl_size = 1024;
q->jumbo_size = 512;
q->jumbo_size = 512;
q->txq_size[TXQ_ETH] = 1024;
q->txq_size[TXQ_OFLD] = 1024;
q->txq_size[TXQ_CTRL] = 256;

11
drivers/net/cxgb3/t3_cpl.h
View File

@ -174,6 +174,13 @@ enum { /* TCP congestion control algorithms */
CONG_ALG_HIGHSPEED
};
enum { /* RSS hash type */
RSS_HASH_NONE = 0,
RSS_HASH_2_TUPLE = 1,
RSS_HASH_4_TUPLE = 2,
RSS_HASH_TCPV6 = 3
};
union opcode_tid {
__be32 opcode_tid;
__u8 opcode;
@ -184,6 +191,10 @@ union opcode_tid {
#define G_OPCODE(x) (((x) >> S_OPCODE) & 0xFF)
#define G_TID(x) ((x) & 0xFFFFFF)
#define S_HASHTYPE 22
#define M_HASHTYPE 0x3
#define G_HASHTYPE(x) (((x) >> S_HASHTYPE) & M_HASHTYPE)
/* tid is assumed to be 24-bits */
#define MK_OPCODE_TID(opcode, tid) (V_OPCODE(opcode) | (tid))

8
drivers/net/dl2k.c
View File

@ -499,7 +499,7 @@ rio_timer (unsigned long data)
entry = np->old_rx % RX_RING_SIZE;
/* Dropped packets don't need to re-allocate */
if (np->rx_skbuff[entry] == NULL) {
skb = dev_alloc_skb (np->rx_buf_sz);
skb = netdev_alloc_skb (dev, np->rx_buf_sz);
if (skb == NULL) {
np->rx_ring[entry].fraginfo = 0;
printk (KERN_INFO
@ -570,7 +570,7 @@ alloc_list (struct net_device *dev)
/* Allocate the rx buffers */
for (i = 0; i < RX_RING_SIZE; i++) {
/* Allocated fixed size of skbuff */
struct sk_buff *skb = dev_alloc_skb (np->rx_buf_sz);
struct sk_buff *skb = netdev_alloc_skb (dev, np->rx_buf_sz);
np->rx_skbuff[i] = skb;
if (skb == NULL) {
printk (KERN_ERR
@ -867,7 +867,7 @@ receive_packet (struct net_device *dev)
PCI_DMA_FROMDEVICE);
skb_put (skb = np->rx_skbuff[entry], pkt_len);
np->rx_skbuff[entry] = NULL;
} else if ((skb = dev_alloc_skb (pkt_len + 2)) != NULL) {
} else if ((skb = netdev_alloc_skb(dev, pkt_len + 2))) {
pci_dma_sync_single_for_cpu(np->pdev,
desc_to_dma(desc),
np->rx_buf_sz,
@ -904,7 +904,7 @@ receive_packet (struct net_device *dev)
struct sk_buff *skb;
/* Dropped packets don't need to re-allocate */
if (np->rx_skbuff[entry] == NULL) {
skb = dev_alloc_skb (np->rx_buf_sz);
skb = netdev_alloc_skb(dev, np->rx_buf_sz);
if (skb == NULL) {
np->rx_ring[entry].fraginfo = 0;
printk (KERN_INFO

12
drivers/net/hamachi.c
View File

@ -1140,11 +1140,11 @@ static void hamachi_tx_timeout(struct net_device *dev)
}
/* Fill in the Rx buffers. Handle allocation failure gracefully. */
for (i = 0; i < RX_RING_SIZE; i++) {
struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz);
struct sk_buff *skb = netdev_alloc_skb(dev, hmp->rx_buf_sz);
hmp->rx_skbuff[i] = skb;
if (skb == NULL)
break;
skb->dev = dev; /* Mark as being used by this device. */
skb_reserve(skb, 2); /* 16 byte align the IP header. */
hmp->rx_ring[i].addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
skb->data, hmp->rx_buf_sz, PCI_DMA_FROMDEVICE));
@ -1178,14 +1178,6 @@ static void hamachi_init_ring(struct net_device *dev)
hmp->cur_rx = hmp->cur_tx = 0;
hmp->dirty_rx = hmp->dirty_tx = 0;
#if 0
/* This is wrong. I'm not sure what the original plan was, but this
* is wrong. An MTU of 1 gets you a buffer of 1536, while an MTU
* of 1501 gets a buffer of 1533? -KDU
*/
hmp->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
#endif
/* My attempt at a reasonable correction */
/* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the
* card needs room to do 8 byte alignment, +2 so we can reserve
* the first 2 bytes, and +16 gets room for the status word from the

4
drivers/net/ixp2000/ixpdev.c
View File

@ -108,14 +108,14 @@ static int ixpdev_rx(struct net_device *dev, int processed, int budget)
if (unlikely(!netif_running(nds[desc->channel])))
goto err;
skb = dev_alloc_skb(desc->pkt_length + 2);
skb = netdev_alloc_skb(dev, desc->pkt_length + 2);
if (likely(skb != NULL)) {
skb_reserve(skb, 2);
skb_copy_to_linear_data(skb, buf, desc->pkt_length);
skb_put(skb, desc->pkt_length);
skb->protocol = eth_type_trans(skb, nds[desc->channel]);
skb->dev->last_rx = jiffies;
dev->last_rx = jiffies;
netif_receive_skb(skb);
}

3
drivers/net/phy/Kconfig
View File

@ -53,7 +53,8 @@ config SMSC_PHY
config BROADCOM_PHY
tristate "Drivers for Broadcom PHYs"
---help---
Currently supports the BCM5411, BCM5421 and BCM5461 PHYs.
Currently supports the BCM5411, BCM5421, BCM5461, BCM5464, BCM5481
and BCM5482 PHYs.
config ICPLUS_PHY
tristate "Drivers for ICPlus PHYs"

201
drivers/net/phy/broadcom.c
View File

@ -24,6 +24,12 @@
#define MII_BCM54XX_ESR 0x11 /* BCM54xx extended status register */
#define MII_BCM54XX_ESR_IS 0x1000 /* Interrupt status */
#define MII_BCM54XX_EXP_DATA 0x15 /* Expansion register data */
#define MII_BCM54XX_EXP_SEL 0x17 /* Expansion register select */
#define MII_BCM54XX_EXP_SEL_SSD 0x0e00 /* Secondary SerDes select */
#define MII_BCM54XX_EXP_SEL_ER 0x0f00 /* Expansion register select */
#define MII_BCM54XX_AUX_CTL 0x18 /* Auxiliary control register */
#define MII_BCM54XX_ISR 0x1a /* BCM54xx interrupt status register */
#define MII_BCM54XX_IMR 0x1b /* BCM54xx interrupt mask register */
#define MII_BCM54XX_INT_CRCERR 0x0001 /* CRC error */
@ -42,10 +48,120 @@
#define MII_BCM54XX_INT_MDIX 0x2000 /* MDIX status change */
#define MII_BCM54XX_INT_PSERR 0x4000 /* Pair swap error */
#define MII_BCM54XX_SHD 0x1c /* 0x1c shadow registers */
#define MII_BCM54XX_SHD_WRITE 0x8000
#define MII_BCM54XX_SHD_VAL(x) ((x & 0x1f) << 10)
#define MII_BCM54XX_SHD_DATA(x) ((x & 0x3ff) << 0)
/*
* Broadcom LED source encodings. These are used in BCM5461, BCM5481,
* BCM5482, and possibly some others.
*/
#define BCM_LED_SRC_LINKSPD1 0x0
#define BCM_LED_SRC_LINKSPD2 0x1
#define BCM_LED_SRC_XMITLED 0x2
#define BCM_LED_SRC_ACTIVITYLED 0x3
#define BCM_LED_SRC_FDXLED 0x4
#define BCM_LED_SRC_SLAVE 0x5
#define BCM_LED_SRC_INTR 0x6
#define BCM_LED_SRC_QUALITY 0x7
#define BCM_LED_SRC_RCVLED 0x8
#define BCM_LED_SRC_MULTICOLOR1 0xa
#define BCM_LED_SRC_OPENSHORT 0xb
#define BCM_LED_SRC_OFF 0xe /* Tied high */
#define BCM_LED_SRC_ON 0xf /* Tied low */
/*
* BCM5482: Shadow registers
* Shadow values go into bits [14:10] of register 0x1c to select a shadow
* register to access.
*/
#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
/* LED3 / ~LINKSPD[2] selector */
#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
/* LED1 / ~LINKSPD[1] selector */
#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
/*
* BCM5482: Secondary SerDes registers
*/
#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
/*
* Device flags for PHYs that can be configured for different operating
* modes.
*/
#define PHY_BCM_FLAGS_VALID 0x80000000
#define PHY_BCM_FLAGS_INTF_XAUI 0x00000020
#define PHY_BCM_FLAGS_INTF_SGMII 0x00000010
#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002
#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001
MODULE_DESCRIPTION("Broadcom PHY driver");
MODULE_AUTHOR("Maciej W. Rozycki");
MODULE_LICENSE("GPL");
/*
* Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
* 0x1c shadow registers.
*/
static int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
{
phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
}
static int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow, u16 val)
{
return phy_write(phydev, MII_BCM54XX_SHD,
MII_BCM54XX_SHD_WRITE |
MII_BCM54XX_SHD_VAL(shadow) |
MII_BCM54XX_SHD_DATA(val));
}
/*
* Indirect register access functions for the Expansion Registers
* and Secondary SerDes registers (when sec_serdes=1).
*/
static int bcm54xx_exp_read(struct phy_device *phydev,
int sec_serdes, u8 regnum)
{
int val;
phy_write(phydev, MII_BCM54XX_EXP_SEL,
(sec_serdes ? MII_BCM54XX_EXP_SEL_SSD :
MII_BCM54XX_EXP_SEL_ER) |
regnum);
val = phy_read(phydev, MII_BCM54XX_EXP_DATA);
phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
return val;
}
static int bcm54xx_exp_write(struct phy_device *phydev,
int sec_serdes, u8 regnum, u16 val)
{
int ret;
phy_write(phydev, MII_BCM54XX_EXP_SEL,
(sec_serdes ? MII_BCM54XX_EXP_SEL_SSD :
MII_BCM54XX_EXP_SEL_ER) |
regnum);
ret = phy_write(phydev, MII_BCM54XX_EXP_DATA, val);
phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
return ret;
}
static int bcm54xx_config_init(struct phy_device *phydev)
{
int reg, err;
@ -70,6 +186,87 @@ static int bcm54xx_config_init(struct phy_device *phydev)
return 0;
}
static int bcm5482_config_init(struct phy_device *phydev)
{
int err, reg;
err = bcm54xx_config_init(phydev);
if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
/*
* Enable secondary SerDes and its use as an LED source
*/
reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_SSD);
bcm54xx_shadow_write(phydev, BCM5482_SHD_SSD,
reg |
BCM5482_SHD_SSD_LEDM |
BCM5482_SHD_SSD_EN);
/*
* Enable SGMII slave mode and auto-detection
*/
reg = bcm54xx_exp_read(phydev, 1, BCM5482_SSD_SGMII_SLAVE);
bcm54xx_exp_write(phydev, 1, BCM5482_SSD_SGMII_SLAVE,
reg |
BCM5482_SSD_SGMII_SLAVE_EN |
BCM5482_SSD_SGMII_SLAVE_AD);
/*
* Disable secondary SerDes powerdown
*/
reg = bcm54xx_exp_read(phydev, 1, BCM5482_SSD_1000BX_CTL);
bcm54xx_exp_write(phydev, 1, BCM5482_SSD_1000BX_CTL,
reg & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
/*
* Select 1000BASE-X register set (primary SerDes)
*/
reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_MODE);
bcm54xx_shadow_write(phydev, BCM5482_SHD_MODE,
reg | BCM5482_SHD_MODE_1000BX);
/*
* LED1=ACTIVITYLED, LED3=LINKSPD[2]
* (Use LED1 as secondary SerDes ACTIVITY LED)
*/
bcm54xx_shadow_write(phydev, BCM5482_SHD_LEDS1,
BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
/*
* Auto-negotiation doesn't seem to work quite right
* in this mode, so we disable it and force it to the
* right speed/duplex setting. Only 'link status'
* is important.
*/
phydev->autoneg = AUTONEG_DISABLE;
phydev->speed = SPEED_1000;
phydev->duplex = DUPLEX_FULL;
}
return err;
}
static int bcm5482_read_status(struct phy_device *phydev)
{
int err;
err = genphy_read_status(phydev);
if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
/*
* Only link status matters for 1000Base-X mode, so force
* 1000 Mbit/s full-duplex status
*/
if (phydev->link) {
phydev->speed = SPEED_1000;
phydev->duplex = DUPLEX_FULL;
}
}
return err;
}
static int bcm54xx_ack_interrupt(struct phy_device *phydev)
{
int reg;
@ -210,9 +407,9 @@ static struct phy_driver bcm5482_driver = {
.name = "Broadcom BCM5482",
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.config_init = bcm54xx_config_init,
.config_init = bcm5482_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.read_status = bcm5482_read_status,
.ack_interrupt = bcm54xx_ack_interrupt,
.config_intr = bcm54xx_config_intr,
.driver = { .owner = THIS_MODULE },

32
drivers/net/tg3.c
View File

@ -2013,7 +2013,7 @@ static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
"requested.\n",
tp->dev->name, state);
return -EINVAL;
};
}
power_control |= PCI_PM_CTRL_PME_ENABLE;
@ -2272,7 +2272,7 @@ static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8
*speed = SPEED_INVALID;
*duplex = DUPLEX_INVALID;
break;
};
}
}
static void tg3_phy_copper_begin(struct tg3 *tp)
@ -2384,7 +2384,7 @@ static void tg3_phy_copper_begin(struct tg3 *tp)
case SPEED_1000:
bmcr |= TG3_BMCR_SPEED1000;
break;
};
}
if (tp->link_config.duplex == DUPLEX_FULL)
bmcr |= BMCR_FULLDPLX;
@ -3082,7 +3082,7 @@ static int tg3_fiber_aneg_smachine(struct tg3 *tp,
default:
ret = ANEG_FAILED;
break;
};
}
return ret;
}
@ -3924,7 +3924,7 @@ static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key,
default:
return -EINVAL;
};
}
/* Do not overwrite any of the map or rp information
* until we are sure we can commit to a new buffer.
@ -3984,7 +3984,7 @@ static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key,
default:
return;
};
}
dest_map->skb = src_map->skb;
pci_unmap_addr_set(dest_map, mapping,
@ -5347,7 +5347,7 @@ static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int
default:
break;
};
}
}
val = tr32(ofs);
@ -5589,7 +5589,7 @@ static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
default:
break;
};
}
}
if (kind == RESET_KIND_INIT ||
@ -5614,7 +5614,7 @@ static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
default:
break;
};
}
}
if (kind == RESET_KIND_SHUTDOWN)
@ -5643,7 +5643,7 @@ static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
default:
break;
};
}
}
}
@ -7677,7 +7677,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
default:
break;
};
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
/* Write our heartbeat update interval to APE. */
@ -11379,7 +11379,7 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
LED_CTRL_MODE_PHY_2);
break;
};
}
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
@ -12690,7 +12690,7 @@ static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
break;
};
}
} else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
switch (cacheline_size) {
case 16:
@ -12707,7 +12707,7 @@ static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
break;
};
}
} else {
switch (cacheline_size) {
case 16:
@ -12751,7 +12751,7 @@ static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
val |= (DMA_RWCTRL_READ_BNDRY_1024 |
DMA_RWCTRL_WRITE_BNDRY_1024);
break;
};
}
}
out:
@ -13111,7 +13111,7 @@ static char * __devinit tg3_phy_string(struct tg3 *tp)
case PHY_ID_BCM8002: return "8002/serdes";
case 0: return "serdes";
default: return "unknown";
};
}
}
static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)

5
drivers/net/usb/catc.c
View File

@ -423,7 +423,10 @@ static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
*((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len);
if (catc->is_f5u011)
*(__be16 *)tx_buf = cpu_to_be16(skb->len);
else
*(__le16 *)tx_buf = cpu_to_le16(skb->len);
skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
catc->tx_ptr += skb->len + 2;

4
drivers/net/usb/rndis_host.c
View File

@ -283,8 +283,8 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
struct rndis_set_c *set_c;
struct rndis_halt *halt;
} u;
u32 tmp, phym_unspec;
__le32 *phym;
u32 tmp;
__le32 phym_unspec, *phym;
int reply_len;
unsigned char *bp;

25
drivers/net/via-velocity.c
View File

@ -1495,24 +1495,18 @@ static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
* enough. This function returns a negative value if the received
* packet is too big or if memory is exhausted.
*/
static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
struct velocity_info *vptr)
static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
struct velocity_info *vptr)
{
int ret = -1;
if (pkt_size < rx_copybreak) {
struct sk_buff *new_skb;
new_skb = dev_alloc_skb(pkt_size + 2);
new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
if (new_skb) {
new_skb->dev = vptr->dev;
new_skb->ip_summed = rx_skb[0]->ip_summed;
if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
skb_reserve(new_skb, 2);
skb_copy_from_linear_data(rx_skb[0], new_skb->data,
pkt_size);
skb_reserve(new_skb, 2);
skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
*rx_skb = new_skb;
ret = 0;
}
@ -1533,12 +1527,8 @@ static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
static inline void velocity_iph_realign(struct velocity_info *vptr,
struct sk_buff *skb, int pkt_size)
{
/* FIXME - memmove ? */
if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
int i;
for (i = pkt_size; i >= 0; i--)
*(skb->data + i + 2) = *(skb->data + i);
memmove(skb->data + 2, skb->data, pkt_size);
skb_reserve(skb, 2);
}
}
@ -1629,7 +1619,7 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
struct rx_desc *rd = &(vptr->rd_ring[idx]);
struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
rd_info->skb = netdev_alloc_skb(vptr->dev, vptr->rx_buf_sz + 64);
if (rd_info->skb == NULL)
return -ENOMEM;
@ -1638,7 +1628,6 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
* 64byte alignment.
*/
skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
rd_info->skb->dev = vptr->dev;
rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
/*

2
drivers/net/wireless/zd1211rw/zd_mac.c
View File

@ -807,7 +807,7 @@ void zd_process_intr(struct work_struct *work)
u16 int_status;
struct zd_mac *mac = container_of(work, struct zd_mac, process_intr);
int_status = le16_to_cpu(*(u16 *)(mac->intr_buffer+4));
int_status = le16_to_cpu(*(__le16 *)(mac->intr_buffer+4));
if (int_status & INT_CFG_NEXT_BCN) {
if (net_ratelimit())
dev_dbg_f(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n");

2
drivers/net/wireless/zd1211rw/zd_usb.c
View File

@ -342,7 +342,7 @@ static inline void handle_regs_int(struct urb *urb)
ZD_ASSERT(in_interrupt());
spin_lock(&intr->lock);
int_num = le16_to_cpu(*(u16 *)(urb->transfer_buffer+2));
int_num = le16_to_cpu(*(__le16 *)(urb->transfer_buffer+2));
if (int_num == CR_INTERRUPT) {
struct zd_mac *mac = zd_hw_mac(zd_usb_to_hw(urb->context));
memcpy(&mac->intr_buffer, urb->transfer_buffer,