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openwrt-xburst/target/linux/ixp4xx/patches/178-via_velocity_bigendian.patch
juhosg 0fc3447849 [ixp4xx] refresh kernel patches 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11204 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-05-19 10:58:03 +00:00

928 lines
30 KiB
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Index: linux-2.6.21.7/drivers/net/via-velocity.c
===================================================================
--- linux-2.6.21.7.orig/drivers/net/via-velocity.c
+++ linux-2.6.21.7/drivers/net/via-velocity.c
@@ -96,11 +96,31 @@ MODULE_AUTHOR("VIA Networking Technologi
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
+/* Valid values for vdebug (additive, this is a bitmask):
+ * 0x00 => off
+ * 0x01 => always on
+ * 0x02 => additional detail on tx (rx, too, if anyone implements same)
+ * 0x04 => detail the initialization process
+ * 0x08 => spot debug detail; to be used as developers see fit
+ */
+static int vdebug = 0;
+
+/* HAIL - these macros are for the normal 0x01-type tracing... */
+#define HAIL(S) \
+ if (vdebug&1) printk(KERN_NOTICE "%s\n", (S));
+#define HAILS(S,T) \
+ if (vdebug&1) printk(KERN_NOTICE "%s -> status=0x%x\n", (S), (T));
+
#define VELOCITY_PARAM(N,D) \
static int N[MAX_UNITS]=OPTION_DEFAULT;\
module_param_array(N, int, NULL, 0); \
MODULE_PARM_DESC(N, D);
+#define VELO_DEBUG_MIN 0
+#define VELO_DEBUG_MAX 255
+#define VELO_DEBUG_DEF 0
+VELOCITY_PARAM(velo_debug, "Debug level");
+
#define RX_DESC_MIN 64
#define RX_DESC_MAX 255
#define RX_DESC_DEF 64
@@ -385,12 +405,12 @@ static void __devinit velocity_set_int_o
if (val == -1)
*opt = def;
else if (val < min || val > max) {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
- devname, name, min, max);
+ VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "via-velocity: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
+ name, min, max);
*opt = def;
} else {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
- devname, name, val);
+ VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "via-velocity: set value of parameter %s to %d\n",
+ name, val);
*opt = val;
}
}
@@ -415,12 +435,12 @@ static void __devinit velocity_set_bool_
if (val == -1)
*opt |= (def ? flag : 0);
else if (val < 0 || val > 1) {
- printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
- devname, name);
+ printk(KERN_NOTICE "via-velocity: the value of parameter %s is invalid, the valid range is (0-1)\n",
+ name);
*opt |= (def ? flag : 0);
} else {
- printk(KERN_INFO "%s: set parameter %s to %s\n",
- devname, name, val ? "TRUE" : "FALSE");
+ printk(KERN_INFO "via-velocity: set parameter %s to %s\n",
+ name, val ? "TRUE" : "FALSE");
*opt |= (val ? flag : 0);
}
}
@@ -438,6 +458,7 @@ static void __devinit velocity_set_bool_
static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
{
+ velocity_set_int_opt(&opts->velo_debug, velo_debug[index], VELO_DEBUG_MIN, VELO_DEBUG_MAX, VELO_DEBUG_DEF, "velo_debug", devname);
velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
@@ -452,6 +473,7 @@ static void __devinit velocity_get_optio
velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
opts->numrx = (opts->numrx & ~3);
+ vdebug = opts->velo_debug;
}
/**
@@ -466,6 +488,8 @@ static void velocity_init_cam_filter(str
{
struct mac_regs __iomem * regs = vptr->mac_regs;
+ HAIL("velocity_init_cam_filter");
+
/* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
WORD_REG_BITS_ON(MCFG_VIDFR, &regs->MCFG);
@@ -484,14 +508,12 @@ static void velocity_init_cam_filter(str
WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), VELOCITY_VLAN_ID_CAM);
- vptr->vCAMmask[0] |= 1;
- mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
} else {
u16 temp = 0;
mac_set_cam(regs, 0, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
- temp = 1;
- mac_set_cam_mask(regs, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
}
+ vptr->vCAMmask[0] |= 1;
+ mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
}
/**
@@ -508,13 +530,15 @@ static void velocity_rx_reset(struct vel
struct mac_regs __iomem * regs = vptr->mac_regs;
int i;
+ HAIL("velocity_rx_reset");
vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
/*
* Init state, all RD entries belong to the NIC
*/
for (i = 0; i < vptr->options.numrx; ++i)
- vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
+ /* vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC; BE */
+ vptr->rd_ring[i].rdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
writew(vptr->options.numrx, &regs->RBRDU);
writel(vptr->rd_pool_dma, &regs->RDBaseLo);
@@ -537,12 +561,15 @@ static void velocity_init_registers(stru
struct mac_regs __iomem * regs = vptr->mac_regs;
int i, mii_status;
+ if (vdebug&5) printk(KERN_NOTICE "velocity_init_registers: entering\n");
+
mac_wol_reset(regs);
switch (type) {
case VELOCITY_INIT_RESET:
case VELOCITY_INIT_WOL:
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: RESET or WOL\n");
netif_stop_queue(vptr->dev);
/*
@@ -570,12 +597,13 @@ static void velocity_init_registers(stru
case VELOCITY_INIT_COLD:
default:
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: COLD or default\n");
/*
* Do reset
*/
velocity_soft_reset(vptr);
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: soft reset complete.\n");
mdelay(5);
-
mac_eeprom_reload(regs);
for (i = 0; i < 6; i++) {
writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
@@ -593,11 +621,16 @@ static void velocity_init_registers(stru
*/
BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), &regs->CFGB);
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Initializing CAM filter\n");
/*
* Init CAM filter
*/
+ if (vdebug&8) printk(KERN_NOTICE "velocity: spot debug: about to init CAM filters\n");
+ mdelay(5); /* MJW - ARM processors, kernel 2.6.19 - this fixes oopses and hangs */
velocity_init_cam_filter(vptr);
+ if (vdebug&8) printk(KERN_NOTICE "velocity: spot debug: init CAM filters complete\n");
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Setting packet filter\n");
/*
* Set packet filter: Receive directed and broadcast address
*/
@@ -607,10 +640,12 @@ static void velocity_init_registers(stru
* Enable MII auto-polling
*/
enable_mii_autopoll(regs);
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: enable_mii_autopoll complete.\n");
vptr->int_mask = INT_MASK_DEF;
- writel(cpu_to_le32(vptr->rd_pool_dma), &regs->RDBaseLo);
+ /* writel(cpu_to_le32(vptr->rd_pool_dma), &regs->RDBaseLo); BE */
+ writel((vptr->rd_pool_dma), &regs->RDBaseLo); /* BE */
writew(vptr->options.numrx - 1, &regs->RDCSize);
mac_rx_queue_run(regs);
mac_rx_queue_wake(regs);
@@ -618,10 +653,13 @@ static void velocity_init_registers(stru
writew(vptr->options.numtx - 1, &regs->TDCSize);
for (i = 0; i < vptr->num_txq; i++) {
- writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
+ /* writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i])); BE */
+ writel((vptr->td_pool_dma[i]), &(regs->TDBaseLo[i])); /* BE */
mac_tx_queue_run(regs, i);
}
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: DMA settings complete.\n");
+
init_flow_control_register(vptr);
writel(CR0_STOP, &regs->CR0Clr);
@@ -640,8 +678,10 @@ static void velocity_init_registers(stru
enable_flow_control_ability(vptr);
mac_hw_mibs_init(regs);
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Set interrupt mask\n");
mac_write_int_mask(vptr->int_mask, regs);
mac_clear_isr(regs);
+ if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: complete.\n");
}
}
@@ -659,6 +699,7 @@ static int velocity_soft_reset(struct ve
struct mac_regs __iomem * regs = vptr->mac_regs;
int i = 0;
+ HAIL("velocity_soft_reset");
writel(CR0_SFRST, &regs->CR0Set);
for (i = 0; i < W_MAX_TIMEOUT; i++) {
@@ -722,6 +763,7 @@ static int __devinit velocity_found1(str
VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
+ printk(KERN_INFO "BE support, misc. fixes MJW 01Jan2007 - may be unstable\n");
first = 0;
}
@@ -935,6 +977,7 @@ static int velocity_init_rings(struct ve
dma_addr_t pool_dma;
u8 *pool;
+ HAIL("velocity_init_rings");
/*
* Allocate all RD/TD rings a single pool
*/
@@ -997,6 +1040,7 @@ static int velocity_init_rings(struct ve
static void velocity_free_rings(struct velocity_info *vptr)
{
int size;
+ HAIL("velocity_free_rings");
size = vptr->options.numrx * sizeof(struct rx_desc) +
vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
@@ -1013,6 +1057,7 @@ static inline void velocity_give_many_rx
struct mac_regs __iomem *regs = vptr->mac_regs;
int avail, dirty, unusable;
+ HAIL("velocity_give_many_rx_descs");
/*
* RD number must be equal to 4X per hardware spec
* (programming guide rev 1.20, p.13)
@@ -1026,7 +1071,8 @@ static inline void velocity_give_many_rx
dirty = vptr->rd_dirty - unusable;
for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
- vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
+ /* vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC; BE */
+ vptr->rd_ring[dirty].rdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
}
writew(vptr->rd_filled & 0xfffc, &regs->RBRDU);
@@ -1036,12 +1082,14 @@ static inline void velocity_give_many_rx
static int velocity_rx_refill(struct velocity_info *vptr)
{
int dirty = vptr->rd_dirty, done = 0, ret = 0;
+ HAIL("velocity_rx_refill");
do {
struct rx_desc *rd = vptr->rd_ring + dirty;
/* Fine for an all zero Rx desc at init time as well */
- if (rd->rdesc0.owner == OWNED_BY_NIC)
+ /* if (rd->rdesc0.owner == OWNED_BY_NIC) BE */
+ if (rd->rdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
break;
if (!vptr->rd_info[dirty].skb) {
@@ -1076,6 +1124,7 @@ static int velocity_init_rd_ring(struct
unsigned int rsize = sizeof(struct velocity_rd_info) *
vptr->options.numrx;
+ HAIL("velocity_init_rd_ring");
vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
if(vptr->rd_info == NULL)
goto out;
@@ -1105,6 +1154,7 @@ static void velocity_free_rd_ring(struct
{
int i;
+ HAIL("velocity_free_rd_ring");
if (vptr->rd_info == NULL)
return;
@@ -1146,6 +1196,7 @@ static int velocity_init_td_ring(struct
unsigned int tsize = sizeof(struct velocity_td_info) *
vptr->options.numtx;
+ HAIL("velocity_init_td_ring");
/* Init the TD ring entries */
for (j = 0; j < vptr->num_txq; j++) {
curr = vptr->td_pool_dma[j];
@@ -1182,6 +1233,7 @@ static void velocity_free_td_ring_entry(
struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
int i;
+ HAIL("velocity_free_td_ring_entry");
if (td_info == NULL)
return;
@@ -1211,6 +1263,7 @@ static void velocity_free_td_ring(struct
{
int i, j;
+ HAIL("velocity_free_td_ring");
for (j = 0; j < vptr->num_txq; j++) {
if (vptr->td_infos[j] == NULL)
continue;
@@ -1238,34 +1291,42 @@ static int velocity_rx_srv(struct veloci
struct net_device_stats *stats = &vptr->stats;
int rd_curr = vptr->rd_curr;
int works = 0;
+ u16 wRSR; /* BE */
+ HAILS("velocity_rx_srv", status);
do {
struct rx_desc *rd = vptr->rd_ring + rd_curr;
if (!vptr->rd_info[rd_curr].skb)
break;
- if (rd->rdesc0.owner == OWNED_BY_NIC)
+ /* if (rd->rdesc0.owner == OWNED_BY_NIC) BE */
+ if (rd->rdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
break;
rmb();
+ wRSR = (u16)(cpu_to_le32(rd->rdesc0)); /* BE */
/*
* Don't drop CE or RL error frame although RXOK is off
*/
- if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
+ /* if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) { BE */
+ if ((wRSR & RSR_RXOK) || (!(wRSR & RSR_RXOK) && (wRSR & (RSR_CE | RSR_RL)))) { /* BE */
if (velocity_receive_frame(vptr, rd_curr) < 0)
stats->rx_dropped++;
} else {
- if (rd->rdesc0.RSR & RSR_CRC)
+ /* if (rd->rdesc0.RSR & RSR_CRC) BE */
+ if (wRSR & RSR_CRC) /* BE */
stats->rx_crc_errors++;
- if (rd->rdesc0.RSR & RSR_FAE)
+ /* if (rd->rdesc0.RSR & RSR_FAE) BE */
+ if (wRSR & RSR_FAE) /* BE */
stats->rx_frame_errors++;
stats->rx_dropped++;
}
- rd->inten = 1;
+ /* rd->inten = 1; BE */
+ rd->ltwo |= cpu_to_le32(BE_INT_ENABLE); /* BE */
vptr->dev->last_rx = jiffies;
@@ -1296,13 +1357,21 @@ static int velocity_rx_srv(struct veloci
static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
{
+ u8 bCSM;
+ HAIL("velocity_rx_csum");
skb->ip_summed = CHECKSUM_NONE;
- if (rd->rdesc1.CSM & CSM_IPKT) {
- if (rd->rdesc1.CSM & CSM_IPOK) {
- if ((rd->rdesc1.CSM & CSM_TCPKT) ||
- (rd->rdesc1.CSM & CSM_UDPKT)) {
- if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
+// if (rd->rdesc1.CSM & CSM_IPKT) {
+// if (rd->rdesc1.CSM & CSM_IPOK) {
+// if ((rd->rdesc1.CSM & CSM_TCPKT) ||
+// (rd->rdesc1.CSM & CSM_UDPKT)) {
+// if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
+ bCSM = (u8)(cpu_to_le32(rd->rdesc1) >> 16); /* BE */
+ if (bCSM & CSM_IPKT) {
+ if (bCSM & CSM_IPOK) {
+ if ((bCSM & CSM_TCPKT) ||
+ (bCSM & CSM_UDPKT)) {
+ if (!(bCSM & CSM_TUPOK)) { /* BE */
return;
}
}
@@ -1328,9 +1397,11 @@ static inline int velocity_rx_copy(struc
{
int ret = -1;
+ HAIL("velocity_rx_copy");
if (pkt_size < rx_copybreak) {
struct sk_buff *new_skb;
+ HAIL("velocity_rx_copy (working...)");
new_skb = dev_alloc_skb(pkt_size + 2);
if (new_skb) {
new_skb->dev = vptr->dev;
@@ -1360,10 +1431,12 @@ static inline int velocity_rx_copy(struc
static inline void velocity_iph_realign(struct velocity_info *vptr,
struct sk_buff *skb, int pkt_size)
{
+ HAIL("velocity_iph_realign");
/* FIXME - memmove ? */
if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
int i;
+ HAIL("velocity_iph_realign (working...)");
for (i = pkt_size; i >= 0; i--)
*(skb->data + i + 2) = *(skb->data + i);
skb_reserve(skb, 2);
@@ -1382,19 +1455,27 @@ static inline void velocity_iph_realign(
static int velocity_receive_frame(struct velocity_info *vptr, int idx)
{
void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
+ u16 pkt_len; /* BE */
+ u16 wRSR; /* BE */
+ struct sk_buff *skb;
struct net_device_stats *stats = &vptr->stats;
struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
struct rx_desc *rd = &(vptr->rd_ring[idx]);
- int pkt_len = rd->rdesc0.len;
- struct sk_buff *skb;
+ /* int pkt_len = rd->rdesc0.len BE */;
+
+ pkt_len = ((cpu_to_le32(rd->rdesc0) >> 16) & 0x00003FFFUL); /* BE */
+ wRSR = (u16)(cpu_to_le32(rd->rdesc0)); /* BE */
- if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
+ HAIL("velocity_receive_frame");
+ /* if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { BE */
+ if (wRSR & (RSR_STP | RSR_EDP)) { /* BE */
VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
stats->rx_length_errors++;
return -EINVAL;
}
- if (rd->rdesc0.RSR & RSR_MAR)
+ /* if (rd->rdesc0.RSR & RSR_MAR) BE */
+ if (wRSR & RSR_MAR) /* BE */
vptr->stats.multicast++;
skb = rd_info->skb;
@@ -1408,7 +1489,8 @@ static int velocity_receive_frame(struct
*/
if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
- if (rd->rdesc0.RSR & RSR_RL) {
+ /* if (rd->rdesc0.RSR & RSR_RL) { BE */
+ if (wRSR & RSR_RL) { /* BE */
stats->rx_length_errors++;
return -EINVAL;
}
@@ -1452,6 +1534,7 @@ static int velocity_alloc_rx_buf(struct
struct rx_desc *rd = &(vptr->rd_ring[idx]);
struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
+ HAIL("velocity_alloc_rx_buf");
rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
if (rd_info->skb == NULL)
return -ENOMEM;
@@ -1469,10 +1552,14 @@ static int velocity_alloc_rx_buf(struct
*/
*((u32 *) & (rd->rdesc0)) = 0;
- rd->len = cpu_to_le32(vptr->rx_buf_sz);
- rd->inten = 1;
+ /* rd->len = cpu_to_le32(vptr->rx_buf_sz); BE */
+ /* rd->inten = 1; BE */
rd->pa_low = cpu_to_le32(rd_info->skb_dma);
- rd->pa_high = 0;
+ /* rd->pa_high = 0; BE */
+ rd->ltwo &= cpu_to_le32(0xC000FFFFUL); /* BE */
+ rd->ltwo |= cpu_to_le32((vptr->rx_buf_sz << 16)); /* BE */
+ rd->ltwo |= cpu_to_le32(BE_INT_ENABLE); /* BE */
+ rd->ltwo &= cpu_to_le32(0xFFFF0000UL); /* BE */
return 0;
}
@@ -1493,9 +1580,11 @@ static int velocity_tx_srv(struct veloci
int full = 0;
int idx;
int works = 0;
+ u16 wTSR; /* BE */
struct velocity_td_info *tdinfo;
struct net_device_stats *stats = &vptr->stats;
+ HAILS("velocity_tx_srv", status);
for (qnum = 0; qnum < vptr->num_txq; qnum++) {
for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
idx = (idx + 1) % vptr->options.numtx) {
@@ -1506,22 +1595,29 @@ static int velocity_tx_srv(struct veloci
td = &(vptr->td_rings[qnum][idx]);
tdinfo = &(vptr->td_infos[qnum][idx]);
- if (td->tdesc0.owner == OWNED_BY_NIC)
+ /* if (td->tdesc0.owner == OWNED_BY_NIC) BE */
+ if (td->tdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
break;
if ((works++ > 15))
break;
- if (td->tdesc0.TSR & TSR0_TERR) {
+ wTSR = (u16)cpu_to_le32(td->tdesc0);
+ /* if (td->tdesc0.TSR & TSR0_TERR) { BE */
+ if (wTSR & TSR0_TERR) { /* BE */
stats->tx_errors++;
stats->tx_dropped++;
- if (td->tdesc0.TSR & TSR0_CDH)
+ /* if (td->tdesc0.TSR & TSR0_CDH) BE */
+ if (wTSR & TSR0_CDH) /* BE */
stats->tx_heartbeat_errors++;
- if (td->tdesc0.TSR & TSR0_CRS)
+ /* if (td->tdesc0.TSR & TSR0_CRS) BE */
+ if (wTSR & TSR0_CRS) /* BE */
stats->tx_carrier_errors++;
- if (td->tdesc0.TSR & TSR0_ABT)
+ /* if (td->tdesc0.TSR & TSR0_ABT) BE */
+ if (wTSR & TSR0_ABT) /* BE */
stats->tx_aborted_errors++;
- if (td->tdesc0.TSR & TSR0_OWC)
+ /* if (td->tdesc0.TSR & TSR0_OWC) BE */
+ if (wTSR & TSR0_OWC) /* BE */
stats->tx_window_errors++;
} else {
stats->tx_packets++;
@@ -1610,6 +1706,7 @@ static void velocity_print_link_status(s
static void velocity_error(struct velocity_info *vptr, int status)
{
+ HAILS("velocity_error", status);
if (status & ISR_TXSTLI) {
struct mac_regs __iomem * regs = vptr->mac_regs;
@@ -1699,6 +1796,7 @@ static void velocity_free_tx_buf(struct
struct sk_buff *skb = tdinfo->skb;
int i;
+ HAIL("velocity_free_tx_buf");
/*
* Don't unmap the pre-allocated tx_bufs
*/
@@ -1902,6 +2000,7 @@ static int velocity_xmit(struct sk_buff
struct velocity_td_info *tdinfo;
unsigned long flags;
int index;
+ u32 lbufsz; /* BE */
int pktlen = skb->len;
@@ -1918,9 +2017,18 @@ static int velocity_xmit(struct sk_buff
td_ptr = &(vptr->td_rings[qnum][index]);
tdinfo = &(vptr->td_infos[qnum][index]);
- td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
- td_ptr->tdesc1.TCR = TCR0_TIC;
- td_ptr->td_buf[0].queue = 0;
+ td_ptr->tdesc0 = 0x00000000UL; /* BE */
+ td_ptr->tdesc1 = 0x00000000UL; /* BE */
+
+ /* td_ptr->tdesc1.TCPLS = TCPLS_NORMAL; BE */
+ td_ptr->tdesc1 &= cpu_to_le32(0xfcffffffUL); /* BE */
+ td_ptr->tdesc1 |= cpu_to_le32(((u32)TCPLS_NORMAL) << 24); /* BE */
+
+ /* td_ptr->tdesc1.TCR = TCR0_TIC; BE */
+ td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_TIC); /* BE */
+
+ /* td_ptr->td_buf[0].queue = 0; BE */
+ td_ptr->td_buf[0].ltwo &= cpu_to_le32(~BE_QUEUE_ENABLE); /* BE */
/*
* Pad short frames.
@@ -1932,20 +2040,35 @@ static int velocity_xmit(struct sk_buff
memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
tdinfo->skb = skb;
tdinfo->skb_dma[0] = tdinfo->buf_dma;
- td_ptr->tdesc0.pktsize = pktlen;
+ /* td_ptr->tdesc0.pktsize = pktlen; */
+ td_ptr->tdesc0 &= cpu_to_le32(0xc000ffffUL); /* BE */
+ lbufsz = pktlen; /* Assign, and make sure it's unsigned 32 bits - BE */
+ lbufsz = lbufsz << 16; /* BE - shift over */
+ td_ptr->tdesc0 |= cpu_to_le32(lbufsz); /* BE */
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
- td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
+ /* td_ptr->td_buf[0].pa_high = 0; */
+ /* td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; */
+ td_ptr->td_buf[0].ltwo = cpu_to_le32(lbufsz); /* BE */
tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
+ /* td_ptr->tdesc1.CMDZ = 2; */
+ td_ptr->tdesc1 &= cpu_to_le32(0x0fffffffUL); /* BE */
+ td_ptr->tdesc1 |= cpu_to_le32(((u32)0x2) << 28); /* BE */
} else
#ifdef VELOCITY_ZERO_COPY_SUPPORT
+ /*
+ * BE - NOTE on the VELOCITY_ZERO_COPY_SUPPORT:
+ * This block of code has NOT been patched up for BE support, as
+ * it is certainly broken -- if it compiles at all. Since the BE
+ * fixes depend on the broken code, attempts to convert to BE support
+ * would almost certainly confuse more than help.
+ */
if (skb_shinfo(skb)->nr_frags > 0) {
int nfrags = skb_shinfo(skb)->nr_frags;
tdinfo->skb = skb;
if (nfrags > 6) {
memcpy(tdinfo->buf, skb->data, skb->len);
tdinfo->skb_dma[0] = tdinfo->buf_dma;
+ /* BE: Er, exactly what value are we assigning in this next line? */
td_ptr->tdesc0.pktsize =
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
td_ptr->td_buf[0].pa_high = 0;
@@ -1962,6 +2085,7 @@ static int velocity_xmit(struct sk_buff
/* FIXME: support 48bit DMA later */
td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
td_ptr->td_buf[i].pa_high = 0;
+ /* BE: This next line can't be right: */
td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
for (i = 0; i < nfrags; i++) {
@@ -1979,7 +2103,7 @@ static int velocity_xmit(struct sk_buff
}
} else
-#endif
+#endif /* (broken) VELOCITY_ZERO_COPY_SUPPORT */
{
/*
* Map the linear network buffer into PCI space and
@@ -1987,19 +2111,30 @@ static int velocity_xmit(struct sk_buff
*/
tdinfo->skb = skb;
tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
- td_ptr->tdesc0.pktsize = pktlen;
+ /* td_ptr->tdesc0.pktsize = pktlen; BE */
+ td_ptr->tdesc0 &= cpu_to_le32(0xc000ffffUL); /* BE */
+ lbufsz = pktlen; /* Assign, and make sure it's unsigned 32 bits - BE */
+ lbufsz = lbufsz << 16; /* BE */
+ td_ptr->tdesc0 |= cpu_to_le32(lbufsz); /* BE */
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
- td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
+ /* td_ptr->td_buf[0].pa_high = 0; BE */
+ /* td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; BE */
+ td_ptr->td_buf[0].ltwo = cpu_to_le32(lbufsz); /* BE */
+
tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
+ /* td_ptr->tdesc1.CMDZ = 2; BE */
+ td_ptr->tdesc1 &= cpu_to_le32(0x0fffffffUL); /* BE */
+ td_ptr->tdesc1 |= cpu_to_le32(((u32)0x2) << 28);/* BE */
}
if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
- td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
- td_ptr->tdesc1.pqinf.priority = 0;
- td_ptr->tdesc1.pqinf.CFI = 0;
- td_ptr->tdesc1.TCR |= TCR0_VETAG;
+ /* td_ptr->tdesc1.pqinf.priority = 0; BE */
+ /* td_ptr->tdesc1.pqinf.CFI = 0; BE */
+ td_ptr->tdesc1 &= cpu_to_le32(0xFFFF0000UL); /* BE */
+ /* td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff); BE */
+ td_ptr->tdesc1 |= cpu_to_le32((vptr->options.vid & 0xfff)); /* BE */
+ /* td_ptr->tdesc1.TCR |= TCR0_VETAG; BE */
+ td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_VETAG); /* BE */
}
/*
@@ -2009,26 +2144,34 @@ static int velocity_xmit(struct sk_buff
&& (skb->ip_summed == CHECKSUM_PARTIAL)) {
struct iphdr *ip = skb->nh.iph;
if (ip->protocol == IPPROTO_TCP)
- td_ptr->tdesc1.TCR |= TCR0_TCPCK;
+ /* td_ptr->tdesc1.TCR |= TCR0_TCPCK; BE */
+ td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_TCPCK); /* BE */
else if (ip->protocol == IPPROTO_UDP)
- td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
- td_ptr->tdesc1.TCR |= TCR0_IPCK;
- }
+ /* td_ptr->tdesc1.TCR |= (TCR0_UDPCK); BE */
+ td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_UDPCK); /* BE */
+ /* td_ptr->tdesc1.TCR |= TCR0_IPCK; BE */
+ td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_IPCK); /* BE */
+ }
{
int prev = index - 1;
if (prev < 0)
prev = vptr->options.numtx - 1;
- td_ptr->tdesc0.owner = OWNED_BY_NIC;
+ /* td_ptr->tdesc0.owner = OWNED_BY_NIC; BE */
+ td_ptr->tdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
vptr->td_used[qnum]++;
vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
if (AVAIL_TD(vptr, qnum) < 1)
netif_stop_queue(dev);
- td_ptr = &(vptr->td_rings[qnum][prev]);
- td_ptr->td_buf[0].queue = 1;
+ td_ptr = &(vptr->td_rings[qnum][prev]);
+ /* td_ptr->td_buf[0].queue = 1; BE */
+ td_ptr->td_buf[0].ltwo |= cpu_to_le32(BE_QUEUE_ENABLE); /* BE */
+ if (vdebug&2) printk(KERN_NOTICE "velocity_xmit: (%s) len=%d idx=%d tdesc0=0x%x tdesc1=0x%x ltwo=0x%x\n",
+ (pktlen<ETH_ZLEN) ? "short" : "normal", pktlen, index,
+ td_ptr->tdesc0, td_ptr->tdesc1, td_ptr->td_buf[0].ltwo);
mac_tx_queue_wake(vptr->mac_regs, qnum);
}
dev->trans_start = jiffies;
@@ -2054,7 +2197,7 @@ static int velocity_intr(int irq, void *
u32 isr_status;
int max_count = 0;
-
+ HAIL("velocity_intr");
spin_lock(&vptr->lock);
isr_status = mac_read_isr(vptr->mac_regs);
@@ -2073,7 +2216,10 @@ static int velocity_intr(int irq, void *
while (isr_status != 0) {
mac_write_isr(vptr->mac_regs, isr_status);
- if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
+ HAILS("velocity_intr",isr_status);
+ /* MJW - velocity_error is ALWAYS called; need to mask off some other flags */
+ /* if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) */
+ if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI | ISR_PTX0I | ISR_ISR0)))
velocity_error(vptr, isr_status);
if (isr_status & (ISR_PRXI | ISR_PPRXI))
max_count += velocity_rx_srv(vptr, isr_status);
@@ -2111,6 +2257,7 @@ static void velocity_set_multi(struct ne
int i;
struct dev_mc_list *mclist;
+ HAIL("velocity_set_multi");
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
writel(0xffffffff, &regs->MARCAM[0]);
writel(0xffffffff, &regs->MARCAM[4]);
@@ -2154,6 +2301,7 @@ static struct net_device_stats *velocity
{
struct velocity_info *vptr = netdev_priv(dev);
+ HAIL("net_device_stats");
/* If the hardware is down, don't touch MII */
if(!netif_running(dev))
return &vptr->stats;
@@ -2198,6 +2346,7 @@ static int velocity_ioctl(struct net_dev
struct velocity_info *vptr = netdev_priv(dev);
int ret;
+ HAIL("velocity_ioctl");
/* If we are asked for information and the device is power
saving then we need to bring the device back up to talk to it */
@@ -2416,6 +2565,7 @@ static int velocity_mii_read(struct mac_
{
u16 ww;
+ HAIL("velocity_mii_read");
/*
* Disable MIICR_MAUTO, so that mii addr can be set normally
*/
@@ -2452,6 +2602,7 @@ static int velocity_mii_write(struct mac
{
u16 ww;
+ HAIL("velocity_mii_write");
/*
* Disable MIICR_MAUTO, so that mii addr can be set normally
*/
Index: linux-2.6.21.7/drivers/net/via-velocity.h
===================================================================
--- linux-2.6.21.7.orig/drivers/net/via-velocity.h
+++ linux-2.6.21.7/drivers/net/via-velocity.h
@@ -196,64 +196,70 @@
* Receive descriptor
*/
-struct rdesc0 {
- u16 RSR; /* Receive status */
- u16 len:14; /* Received packet length */
- u16 reserved:1;
- u16 owner:1; /* Who owns this buffer ? */
-};
-
-struct rdesc1 {
- u16 PQTAG;
- u8 CSM;
- u8 IPKT;
-};
+//struct rdesc0 {
+// u16 RSR; /* Receive status */
+// u16 len:14; /* Received packet length */
+// u16 reserved:1;
+// u16 owner:1; /* Who owns this buffer ? */
+//};
+
+//struct rdesc1 {
+// u16 PQTAG;
+// u8 CSM;
+// u8 IPKT;
+//};
struct rx_desc {
- struct rdesc0 rdesc0;
- struct rdesc1 rdesc1;
+// struct rdesc0 rdesc0;
+// struct rdesc1 rdesc1;
+ u32 rdesc0;
+ u32 rdesc1;
u32 pa_low; /* Low 32 bit PCI address */
- u16 pa_high; /* Next 16 bit PCI address (48 total) */
- u16 len:15; /* Frame size */
- u16 inten:1; /* Enable interrupt */
+// u16 pa_high; /* Next 16 bit PCI address (48 total) */
+// u16 len:15; /* Frame size */
+// u16 inten:1; /* Enable interrupt */
+ u32 ltwo;
} __attribute__ ((__packed__));
/*
* Transmit descriptor
*/
-struct tdesc0 {
- u16 TSR; /* Transmit status register */
- u16 pktsize:14; /* Size of frame */
- u16 reserved:1;
- u16 owner:1; /* Who owns the buffer */
-};
-
-struct pqinf { /* Priority queue info */
- u16 VID:12;
- u16 CFI:1;
- u16 priority:3;
-} __attribute__ ((__packed__));
-
-struct tdesc1 {
- struct pqinf pqinf;
- u8 TCR;
- u8 TCPLS:2;
- u8 reserved:2;
- u8 CMDZ:4;
-} __attribute__ ((__packed__));
+//struct tdesc0 {
+// u16 TSR; /* Transmit status register */
+// u16 pktsize:14; /* Size of frame */
+// u16 reserved:1;
+// u16 owner:1; /* Who owns the buffer */
+//};
+
+//struct pqinf { /* Priority queue info */
+// u16 VID:12;
+// u16 CFI:1;
+// u16 priority:3;
+//} __attribute__ ((__packed__));
+
+//struct tdesc1 {
+// struct pqinf pqinf;
+// u8 TCR;
+// u8 TCPLS:2;
+// u8 reserved:2;
+// u8 CMDZ:4;
+//} __attribute__ ((__packed__));
struct td_buf {
u32 pa_low;
- u16 pa_high;
- u16 bufsize:14;
- u16 reserved:1;
- u16 queue:1;
+// u16 pa_high;
+// u16 bufsize:14;
+// u16 reserved:1;
+// u16 queue:1;
+ u32 ltwo;
} __attribute__ ((__packed__));
struct tx_desc {
- struct tdesc0 tdesc0;
- struct tdesc1 tdesc1;
+// struct tdesc0 tdesc0;
+// struct tdesc1 tdesc1;
+ u32 tdesc0;
+ u32 tdesc1;
struct td_buf td_buf[7];
};
@@ -279,6 +285,16 @@ enum velocity_owner {
OWNED_BY_NIC = 1
};
+/* Constants added for the BE fixes */
+#define BE_OWNED_BY_NIC 0x80000000UL
+#define BE_INT_ENABLE 0x80000000UL
+#define BE_QUEUE_ENABLE 0x80000000UL
+#define BE_TCR_TIC 0x00800000UL
+#define BE_TCR_VETAG 0x00200000UL
+#define BE_TCR_TCPCK 0x00040000UL
+#define BE_TCR_UDPCK 0x00080000UL
+#define BE_TCR_IPCK 0x00100000UL
+
/*
* MAC registers and macros.
@@ -1698,6 +1714,7 @@ enum velocity_flow_cntl_type {
};
struct velocity_opt {
+ int velo_debug; /* debug flag */
int numrx; /* Number of RX descriptors */
int numtx; /* Number of TX descriptors */
enum speed_opt spd_dpx; /* Media link mode */
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