/*
- * Network device driver for Cell Processor-Based Blade
+ * Network device driver for Cell Processor-Based Blade and Celleb platform
*
* (C) Copyright IBM Corp. 2005
+ * (C) Copyright 2006 TOSHIBA CORPORATION
*
* Authors : Utz Bacher <utz.bacher@de.ibm.com>
* Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
* returns the status as in the dmac_cmd_status field of the descriptor
*/
static inline int
-spider_net_get_descr_status(struct spider_net_descr *descr)
+spider_net_get_descr_status(struct spider_net_hw_descr *hwdescr)
{
- return descr->dmac_cmd_status & SPIDER_NET_DESCR_IND_PROC_MASK;
+ return hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_IND_PROC_MASK;
}
/**
descr = chain->ring;
do {
descr->bus_addr = 0;
- descr->next_descr_addr = 0;
+ descr->hwdescr->next_descr_addr = 0;
descr = descr->next;
} while (descr != chain->ring);
dma_free_coherent(&card->pdev->dev, chain->num_desc,
- chain->ring, chain->dma_addr);
+ chain->hwring, chain->dma_addr);
}
/**
{
int i;
struct spider_net_descr *descr;
+ struct spider_net_hw_descr *hwdescr;
dma_addr_t buf;
size_t alloc_size;
- alloc_size = chain->num_desc * sizeof (struct spider_net_descr);
+ alloc_size = chain->num_desc * sizeof(struct spider_net_hw_descr);
- chain->ring = dma_alloc_coherent(&card->pdev->dev, alloc_size,
+ chain->hwring = dma_alloc_coherent(&card->pdev->dev, alloc_size,
&chain->dma_addr, GFP_KERNEL);
- if (!chain->ring)
+ if (!chain->hwring)
return -ENOMEM;
- descr = chain->ring;
- memset(descr, 0, alloc_size);
+ memset(chain->ring, 0, chain->num_desc * sizeof(struct spider_net_descr));
/* Set up the hardware pointers in each descriptor */
+ descr = chain->ring;
+ hwdescr = chain->hwring;
buf = chain->dma_addr;
- for (i=0; i < chain->num_desc; i++, descr++) {
- descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+ for (i=0; i < chain->num_desc; i++, descr++, hwdescr++) {
+ hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+ hwdescr->next_descr_addr = 0;
+ descr->hwdescr = hwdescr;
descr->bus_addr = buf;
- descr->next_descr_addr = 0;
descr->next = descr + 1;
descr->prev = descr - 1;
- buf += sizeof(struct spider_net_descr);
+ buf += sizeof(struct spider_net_hw_descr);
}
/* do actual circular list */
(descr-1)->next = chain->ring;
descr = card->rx_chain.head;
do {
if (descr->skb) {
- dev_kfree_skb(descr->skb);
- pci_unmap_single(card->pdev, descr->buf_addr,
+ pci_unmap_single(card->pdev, descr->hwdescr->buf_addr,
SPIDER_NET_MAX_FRAME,
PCI_DMA_BIDIRECTIONAL);
+ dev_kfree_skb(descr->skb);
+ descr->skb = NULL;
}
descr = descr->next;
} while (descr != card->rx_chain.head);
spider_net_prepare_rx_descr(struct spider_net_card *card,
struct spider_net_descr *descr)
{
+ struct spider_net_hw_descr *hwdescr = descr->hwdescr;
dma_addr_t buf;
int offset;
int bufsize;
card->spider_stats.alloc_rx_skb_error++;
return -ENOMEM;
}
- descr->buf_size = bufsize;
- descr->result_size = 0;
- descr->valid_size = 0;
- descr->data_status = 0;
- descr->data_error = 0;
+ hwdescr->buf_size = bufsize;
+ hwdescr->result_size = 0;
+ hwdescr->valid_size = 0;
+ hwdescr->data_status = 0;
+ hwdescr->data_error = 0;
offset = ((unsigned long)descr->skb->data) &
(SPIDER_NET_RXBUF_ALIGN - 1);
/* iommu-map the skb */
buf = pci_map_single(card->pdev, descr->skb->data,
SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
- descr->buf_addr = buf;
if (pci_dma_mapping_error(buf)) {
dev_kfree_skb_any(descr->skb);
+ descr->skb = NULL;
if (netif_msg_rx_err(card) && net_ratelimit())
pr_err("Could not iommu-map rx buffer\n");
card->spider_stats.rx_iommu_map_error++;
- descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+ hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
} else {
- descr->next_descr_addr = 0;
+ hwdescr->buf_addr = buf;
+ hwdescr->next_descr_addr = 0;
wmb();
- descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
+ hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
SPIDER_NET_DMAC_NOINTR_COMPLETE;
wmb();
- descr->prev->next_descr_addr = descr->bus_addr;
+ descr->prev->hwdescr->next_descr_addr = descr->bus_addr;
}
return 0;
if (!spin_trylock_irqsave(&chain->lock, flags))
return;
- while (spider_net_get_descr_status(chain->head) ==
+ while (spider_net_get_descr_status(chain->head->hwdescr) ==
SPIDER_NET_DESCR_NOT_IN_USE) {
if (spider_net_prepare_rx_descr(card, chain->head))
break;
spider_net_prepare_tx_descr(struct spider_net_card *card,
struct sk_buff *skb)
{
+ struct spider_net_descr_chain *chain = &card->tx_chain;
struct spider_net_descr *descr;
+ struct spider_net_hw_descr *hwdescr;
dma_addr_t buf;
unsigned long flags;
return -ENOMEM;
}
- spin_lock_irqsave(&card->tx_chain.lock, flags);
+ spin_lock_irqsave(&chain->lock, flags);
descr = card->tx_chain.head;
- card->tx_chain.head = descr->next;
+ if (descr->next == chain->tail->prev) {
+ spin_unlock_irqrestore(&chain->lock, flags);
+ pci_unmap_single(card->pdev, buf, skb->len, PCI_DMA_TODEVICE);
+ return -ENOMEM;
+ }
+ hwdescr = descr->hwdescr;
+ chain->head = descr->next;
- descr->buf_addr = buf;
- descr->buf_size = skb->len;
- descr->next_descr_addr = 0;
descr->skb = skb;
- descr->data_status = 0;
+ hwdescr->buf_addr = buf;
+ hwdescr->buf_size = skb->len;
+ hwdescr->next_descr_addr = 0;
+ hwdescr->data_status = 0;
- descr->dmac_cmd_status =
+ hwdescr->dmac_cmd_status =
SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_NOCS;
- spin_unlock_irqrestore(&card->tx_chain.lock, flags);
+ spin_unlock_irqrestore(&chain->lock, flags);
if (skb->protocol == htons(ETH_P_IP))
switch (skb->nh.iph->protocol) {
case IPPROTO_TCP:
- descr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP;
+ hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP;
break;
case IPPROTO_UDP:
- descr->dmac_cmd_status |= SPIDER_NET_DMAC_UDP;
+ hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_UDP;
break;
}
/* Chain the bus address, so that the DMA engine finds this descr. */
- descr->prev->next_descr_addr = descr->bus_addr;
+ wmb();
+ descr->prev->hwdescr->next_descr_addr = descr->bus_addr;
card->netdev->trans_start = jiffies; /* set netdev watchdog timer */
return 0;
static int
spider_net_set_low_watermark(struct spider_net_card *card)
{
+ struct spider_net_descr *descr = card->tx_chain.tail;
+ struct spider_net_hw_descr *hwdescr;
unsigned long flags;
int status;
int cnt=0;
int i;
- struct spider_net_descr *descr = card->tx_chain.tail;
/* Measure the length of the queue. Measurement does not
* need to be precise -- does not need a lock. */
while (descr != card->tx_chain.head) {
- status = descr->dmac_cmd_status & SPIDER_NET_DESCR_NOT_IN_USE;
+ status = descr->hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_NOT_IN_USE;
if (status == SPIDER_NET_DESCR_NOT_IN_USE)
break;
descr = descr->next;
/* Set the new watermark, clear the old watermark */
spin_lock_irqsave(&card->tx_chain.lock, flags);
- descr->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG;
- if (card->low_watermark && card->low_watermark != descr)
- card->low_watermark->dmac_cmd_status =
- card->low_watermark->dmac_cmd_status & ~SPIDER_NET_DESCR_TXDESFLG;
+ descr->hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG;
+ if (card->low_watermark && card->low_watermark != descr) {
+ hwdescr = card->low_watermark->hwdescr;
+ hwdescr->dmac_cmd_status =
+ hwdescr->dmac_cmd_status & ~SPIDER_NET_DESCR_TXDESFLG;
+ }
card->low_watermark = descr;
spin_unlock_irqrestore(&card->tx_chain.lock, flags);
return cnt;
{
struct spider_net_descr_chain *chain = &card->tx_chain;
struct spider_net_descr *descr;
+ struct spider_net_hw_descr *hwdescr;
struct sk_buff *skb;
u32 buf_addr;
unsigned long flags;
int status;
- while (chain->tail != chain->head) {
+ while (1) {
spin_lock_irqsave(&chain->lock, flags);
+ if (chain->tail == chain->head) {
+ spin_unlock_irqrestore(&chain->lock, flags);
+ return 0;
+ }
descr = chain->tail;
+ hwdescr = descr->hwdescr;
- status = spider_net_get_descr_status(descr);
+ status = spider_net_get_descr_status(hwdescr);
switch (status) {
case SPIDER_NET_DESCR_COMPLETE:
card->netdev_stats.tx_packets++;
}
chain->tail = descr->next;
- descr->dmac_cmd_status |= SPIDER_NET_DESCR_NOT_IN_USE;
+ hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_NOT_IN_USE;
skb = descr->skb;
- buf_addr = descr->buf_addr;
+ descr->skb = NULL;
+ buf_addr = hwdescr->buf_addr;
spin_unlock_irqrestore(&chain->lock, flags);
/* unmap the skb */
descr = card->tx_chain.tail;
for (;;) {
- if (spider_net_get_descr_status(descr) ==
+ if (spider_net_get_descr_status(descr->hwdescr) ==
SPIDER_NET_DESCR_CARDOWNED) {
spider_net_write_reg(card, SPIDER_NET_GDTDCHA,
descr->bus_addr);
{
int cnt;
struct spider_net_card *card = netdev_priv(netdev);
- struct spider_net_descr_chain *chain = &card->tx_chain;
spider_net_release_tx_chain(card, 0);
- if ((chain->head->next == chain->tail->prev) ||
- (spider_net_prepare_tx_descr(card, skb) != 0)) {
-
+ if (spider_net_prepare_tx_descr(card, skb) != 0) {
card->netdev_stats.tx_dropped++;
netif_stop_queue(netdev);
return NETDEV_TX_BUSY;
spider_net_pass_skb_up(struct spider_net_descr *descr,
struct spider_net_card *card)
{
+ struct spider_net_hw_descr *hwdescr= descr->hwdescr;
struct sk_buff *skb;
struct net_device *netdev;
u32 data_status, data_error;
- data_status = descr->data_status;
- data_error = descr->data_error;
+ data_status = hwdescr->data_status;
+ data_error = hwdescr->data_error;
netdev = card->netdev;
skb = descr->skb;
skb->dev = netdev;
- skb_put(skb, descr->valid_size);
+ skb_put(skb, hwdescr->valid_size);
/* the card seems to add 2 bytes of junk in front
* of the ethernet frame */
#endif
/**
- * spider_net_decode_one_descr - processes an rx descriptor
+ * spider_net_decode_one_descr - processes an RX descriptor
* @card: card structure
*
- * Returns 1 if a packet has been sent to the stack, otherwise 0
+ * Returns 1 if a packet has been sent to the stack, otherwise 0.
*
- * Processes an rx descriptor by iommu-unmapping the data buffer and passing
- * the packet up to the stack. This function is called in softirq
- * context, e.g. either bottom half from interrupt or NAPI polling context
+ * Processes an RX descriptor by iommu-unmapping the data buffer
+ * and passing the packet up to the stack. This function is called
+ * in softirq context, e.g. either bottom half from interrupt or
+ * NAPI polling context.
*/
static int
spider_net_decode_one_descr(struct spider_net_card *card)
{
struct spider_net_descr_chain *chain = &card->rx_chain;
struct spider_net_descr *descr = chain->tail;
+ struct spider_net_hw_descr *hwdescr = descr->hwdescr;
int status;
- status = spider_net_get_descr_status(descr);
+ status = spider_net_get_descr_status(hwdescr);
/* Nothing in the descriptor, or ring must be empty */
if ((status == SPIDER_NET_DESCR_CARDOWNED) ||
chain->tail = descr->next;
/* unmap descriptor */
- pci_unmap_single(card->pdev, descr->buf_addr,
+ pci_unmap_single(card->pdev, hwdescr->buf_addr,
SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
if ( (status == SPIDER_NET_DESCR_RESPONSE_ERROR) ||
if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
(status != SPIDER_NET_DESCR_FRAME_END) ) {
if (netif_msg_rx_err(card))
- pr_err("%s: RX descriptor with unkown state %d\n",
+ pr_err("%s: RX descriptor with unknown state %d\n",
card->netdev->name, status);
card->spider_stats.rx_desc_unk_state++;
goto bad_desc;
}
/* The cases we'll throw away the packet immediately */
- if (descr->data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
+ if (hwdescr->data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
if (netif_msg_rx_err(card))
pr_err("%s: error in received descriptor found, "
"data_status=x%08x, data_error=x%08x\n",
card->netdev->name,
- descr->data_status, descr->data_error);
+ hwdescr->data_status, hwdescr->data_error);
goto bad_desc;
}
- if (descr->dmac_cmd_status & 0xfefe) {
+ if (hwdescr->dmac_cmd_status & 0xfefe) {
pr_err("%s: bad status, cmd_status=x%08x\n",
card->netdev->name,
- descr->dmac_cmd_status);
- pr_err("buf_addr=x%08x\n", descr->buf_addr);
- pr_err("buf_size=x%08x\n", descr->buf_size);
- pr_err("next_descr_addr=x%08x\n", descr->next_descr_addr);
- pr_err("result_size=x%08x\n", descr->result_size);
- pr_err("valid_size=x%08x\n", descr->valid_size);
- pr_err("data_status=x%08x\n", descr->data_status);
- pr_err("data_error=x%08x\n", descr->data_error);
- pr_err("bus_addr=x%08x\n", descr->bus_addr);
+ hwdescr->dmac_cmd_status);
+ pr_err("buf_addr=x%08x\n", hwdescr->buf_addr);
+ pr_err("buf_size=x%08x\n", hwdescr->buf_size);
+ pr_err("next_descr_addr=x%08x\n", hwdescr->next_descr_addr);
+ pr_err("result_size=x%08x\n", hwdescr->result_size);
+ pr_err("valid_size=x%08x\n", hwdescr->valid_size);
+ pr_err("data_status=x%08x\n", hwdescr->data_status);
+ pr_err("data_error=x%08x\n", hwdescr->data_error);
pr_err("which=%ld\n", descr - card->rx_chain.ring);
card->spider_stats.rx_desc_error++;
/* Ok, we've got a packet in descr */
spider_net_pass_skb_up(descr, card);
- descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+ hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
return 1;
bad_desc:
dev_kfree_skb_irq(descr->skb);
- descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+ descr->skb = NULL;
+ hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
return 0;
}
switch (i)
{
case SPIDER_NET_GTMFLLINT:
- if (netif_msg_intr(card) && net_ratelimit())
- pr_err("Spider TX RAM full\n");
+ /* TX RAM full may happen on a usual case.
+ * Logging is not needed. */
show_error = 0;
break;
case SPIDER_NET_GRFDFLLINT: /* fallthrough */
spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
SPIDER_NET_CKRCTRL_RUN_VALUE);
+
+ /* trigger ETOMOD signal */
+ spider_net_write_reg(card, SPIDER_NET_GMACOPEMD,
+ spider_net_read_reg(card, SPIDER_NET_GMACOPEMD) | 0x4);
+
}
/**
SPIDER_NET_GDTBSTA);
}
+/**
+ * spider_net_download_firmware - loads firmware into the adapter
+ * @card: card structure
+ * @firmware_ptr: pointer to firmware data
+ *
+ * spider_net_download_firmware loads the firmware data into the
+ * adapter. It assumes the length etc. to be allright.
+ */
+static int
+spider_net_download_firmware(struct spider_net_card *card,
+ const void *firmware_ptr)
+{
+ int sequencer, i;
+ const u32 *fw_ptr = firmware_ptr;
+
+ /* stop sequencers */
+ spider_net_write_reg(card, SPIDER_NET_GSINIT,
+ SPIDER_NET_STOP_SEQ_VALUE);
+
+ for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
+ sequencer++) {
+ spider_net_write_reg(card,
+ SPIDER_NET_GSnPRGADR + sequencer * 8, 0);
+ for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
+ spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
+ sequencer * 8, *fw_ptr);
+ fw_ptr++;
+ }
+ }
+
+ if (spider_net_read_reg(card, SPIDER_NET_GSINIT))
+ return -EIO;
+
+ spider_net_write_reg(card, SPIDER_NET_GSINIT,
+ SPIDER_NET_RUN_SEQ_VALUE);
+
+ return 0;
+}
+
+/**
+ * spider_net_init_firmware - reads in firmware parts
+ * @card: card structure
+ *
+ * Returns 0 on success, <0 on failure
+ *
+ * spider_net_init_firmware opens the sequencer firmware and does some basic
+ * checks. This function opens and releases the firmware structure. A call
+ * to download the firmware is performed before the release.
+ *
+ * Firmware format
+ * ===============
+ * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being
+ * the program for each sequencer. Use the command
+ * tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt \
+ * Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt \
+ * Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin
+ *
+ * to generate spider_fw.bin, if you have sequencer programs with something
+ * like the following contents for each sequencer:
+ * <ONE LINE COMMENT>
+ * <FIRST 4-BYTES-WORD FOR SEQUENCER>
+ * <SECOND 4-BYTES-WORD FOR SEQUENCER>
+ * ...
+ * <1024th 4-BYTES-WORD FOR SEQUENCER>
+ */
+static int
+spider_net_init_firmware(struct spider_net_card *card)
+{
+ struct firmware *firmware = NULL;
+ struct device_node *dn;
+ const u8 *fw_prop = NULL;
+ int err = -ENOENT;
+ int fw_size;
+
+ if (request_firmware((const struct firmware **)&firmware,
+ SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) {
+ if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) &&
+ netif_msg_probe(card) ) {
+ pr_err("Incorrect size of spidernet firmware in " \
+ "filesystem. Looking in host firmware...\n");
+ goto try_host_fw;
+ }
+ err = spider_net_download_firmware(card, firmware->data);
+
+ release_firmware(firmware);
+ if (err)
+ goto try_host_fw;
+
+ goto done;
+ }
+
+try_host_fw:
+ dn = pci_device_to_OF_node(card->pdev);
+ if (!dn)
+ goto out_err;
+
+ fw_prop = get_property(dn, "firmware", &fw_size);
+ if (!fw_prop)
+ goto out_err;
+
+ if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) &&
+ netif_msg_probe(card) ) {
+ pr_err("Incorrect size of spidernet firmware in " \
+ "host firmware\n");
+ goto done;
+ }
+
+ err = spider_net_download_firmware(card, fw_prop);
+
+done:
+ return err;
+out_err:
+ if (netif_msg_probe(card))
+ pr_err("Couldn't find spidernet firmware in filesystem " \
+ "or host firmware\n");
+ return err;
+}
+
/**
* spider_net_open - called upon ifonfig up
* @netdev: interface device structure
struct spider_net_card *card = netdev_priv(netdev);
int result;
+ result = spider_net_init_firmware(card);
+ if (result)
+ goto init_firmware_failed;
+
/* start probing with copper */
spider_net_setup_aneg(card);
if (card->phy.def->phy_id)
spider_net_free_chain(card, &card->tx_chain);
alloc_tx_failed:
del_timer_sync(&card->aneg_timer);
+init_firmware_failed:
return result;
}
pr_info("%s: link is down trying to bring it up\n", card->netdev->name);
- switch (phy->medium) {
- case GMII_COPPER:
+ switch (card->medium) {
+ case BCM54XX_COPPER:
/* enable fiber with autonegotiation first */
if (phy->def->ops->enable_fiber)
phy->def->ops->enable_fiber(phy, 1);
- phy->medium = GMII_FIBER;
+ card->medium = BCM54XX_FIBER;
break;
- case GMII_FIBER:
+ case BCM54XX_FIBER:
/* fiber didn't come up, try to disable fiber autoneg */
if (phy->def->ops->enable_fiber)
phy->def->ops->enable_fiber(phy, 0);
- phy->medium = GMII_UNKNOWN;
+ card->medium = BCM54XX_UNKNOWN;
break;
- case GMII_UNKNOWN:
+ case BCM54XX_UNKNOWN:
/* copper, fiber with and without failed,
* retry from beginning */
spider_net_setup_aneg(card);
- phy->medium = GMII_COPPER;
+ card->medium = BCM54XX_COPPER;
break;
}
return 0;
}
-/**
- * spider_net_download_firmware - loads firmware into the adapter
- * @card: card structure
- * @firmware_ptr: pointer to firmware data
- *
- * spider_net_download_firmware loads the firmware data into the
- * adapter. It assumes the length etc. to be allright.
- */
-static int
-spider_net_download_firmware(struct spider_net_card *card,
- const void *firmware_ptr)
-{
- int sequencer, i;
- const u32 *fw_ptr = firmware_ptr;
-
- /* stop sequencers */
- spider_net_write_reg(card, SPIDER_NET_GSINIT,
- SPIDER_NET_STOP_SEQ_VALUE);
-
- for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
- sequencer++) {
- spider_net_write_reg(card,
- SPIDER_NET_GSnPRGADR + sequencer * 8, 0);
- for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
- spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
- sequencer * 8, *fw_ptr);
- fw_ptr++;
- }
- }
-
- if (spider_net_read_reg(card, SPIDER_NET_GSINIT))
- return -EIO;
-
- spider_net_write_reg(card, SPIDER_NET_GSINIT,
- SPIDER_NET_RUN_SEQ_VALUE);
-
- return 0;
-}
-
-/**
- * spider_net_init_firmware - reads in firmware parts
- * @card: card structure
- *
- * Returns 0 on success, <0 on failure
- *
- * spider_net_init_firmware opens the sequencer firmware and does some basic
- * checks. This function opens and releases the firmware structure. A call
- * to download the firmware is performed before the release.
- *
- * Firmware format
- * ===============
- * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being
- * the program for each sequencer. Use the command
- * tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt \
- * Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt \
- * Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin
- *
- * to generate spider_fw.bin, if you have sequencer programs with something
- * like the following contents for each sequencer:
- * <ONE LINE COMMENT>
- * <FIRST 4-BYTES-WORD FOR SEQUENCER>
- * <SECOND 4-BYTES-WORD FOR SEQUENCER>
- * ...
- * <1024th 4-BYTES-WORD FOR SEQUENCER>
- */
-static int
-spider_net_init_firmware(struct spider_net_card *card)
-{
- struct firmware *firmware = NULL;
- struct device_node *dn;
- const u8 *fw_prop = NULL;
- int err = -ENOENT;
- int fw_size;
-
- if (request_firmware((const struct firmware **)&firmware,
- SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) {
- if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) &&
- netif_msg_probe(card) ) {
- pr_err("Incorrect size of spidernet firmware in " \
- "filesystem. Looking in host firmware...\n");
- goto try_host_fw;
- }
- err = spider_net_download_firmware(card, firmware->data);
-
- release_firmware(firmware);
- if (err)
- goto try_host_fw;
-
- goto done;
- }
-
-try_host_fw:
- dn = pci_device_to_OF_node(card->pdev);
- if (!dn)
- goto out_err;
-
- fw_prop = get_property(dn, "firmware", &fw_size);
- if (!fw_prop)
- goto out_err;
-
- if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) &&
- netif_msg_probe(card) ) {
- pr_err("Incorrect size of spidernet firmware in " \
- "host firmware\n");
- goto done;
- }
-
- err = spider_net_download_firmware(card, fw_prop);
-
-done:
- return err;
-out_err:
- if (netif_msg_probe(card))
- pr_err("Couldn't find spidernet firmware in filesystem " \
- "or host firmware\n");
- return err;
-}
-
/**
* spider_net_workaround_rxramfull - work around firmware bug
* @card: card structure
if (spider_net_setup_phy(card))
goto out;
- if (spider_net_init_firmware(card))
- goto out;
spider_net_open(netdev);
spider_net_kick_tx_dma(card);
card->options.rx_csum = SPIDER_NET_RX_CSUM_DEFAULT;
- card->tx_chain.num_desc = tx_descriptors;
- card->rx_chain.num_desc = rx_descriptors;
-
spider_net_setup_netdev_ops(netdev);
netdev->features = NETIF_F_HW_CSUM | NETIF_F_LLTX;
{
struct net_device *netdev;
struct spider_net_card *card;
+ size_t alloc_size;
- netdev = alloc_etherdev(sizeof(struct spider_net_card));
+ alloc_size = sizeof(struct spider_net_card) +
+ (tx_descriptors + rx_descriptors) * sizeof(struct spider_net_descr);
+ netdev = alloc_etherdev(alloc_size);
if (!netdev)
return NULL;
init_waitqueue_head(&card->waitq);
atomic_set(&card->tx_timeout_task_counter, 0);
+ card->rx_chain.num_desc = rx_descriptors;
+ card->rx_chain.ring = card->darray;
+ card->tx_chain.num_desc = tx_descriptors;
+ card->tx_chain.ring = card->darray + rx_descriptors;
+
return card;
}
if (err)
goto out_undo_pci;
- err = spider_net_init_firmware(card);
- if (err)
- goto out_undo_pci;
-
err = spider_net_setup_netdev(card);
if (err)
goto out_undo_pci;