mwifiex: add PCIe8897 support
This patch adds PCIe8897 support to mwifiex.
In PCIe8897 PFU (pre-fetch unit) is enabled by default.
This patch adds support to accommodate this feaure as well.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 6c15969..3b9be7c 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -237,15 +237,17 @@
return 0;
}
-#define PCIE_VENDOR_ID_MARVELL (0x11ab)
-#define PCIE_DEVICE_ID_MARVELL_88W8766P (0x2b30)
-
static DEFINE_PCI_DEVICE_TABLE(mwifiex_ids) = {
{
PCIE_VENDOR_ID_MARVELL, PCIE_DEVICE_ID_MARVELL_88W8766P,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
.driver_data = (unsigned long) &mwifiex_pcie8766,
},
+ {
+ PCIE_VENDOR_ID_MARVELL, PCIE_DEVICE_ID_MARVELL_88W8897,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ .driver_data = (unsigned long) &mwifiex_pcie8897,
+ },
{},
};
@@ -377,15 +379,24 @@
static int mwifiex_init_txq_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
int i;
for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
card->tx_buf_list[i] = NULL;
- card->txbd_ring[i] = (void *)(card->txbd_ring_vbase +
- (sizeof(*desc) * i));
- desc = card->txbd_ring[i];
- memset(desc, 0, sizeof(*desc));
+ if (reg->pfu_enabled) {
+ card->txbd_ring[i] = (void *)card->txbd_ring_vbase +
+ (sizeof(*desc2) * i);
+ desc2 = card->txbd_ring[i];
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ card->txbd_ring[i] = (void *)card->txbd_ring_vbase +
+ (sizeof(*desc) * i);
+ desc = card->txbd_ring[i];
+ memset(desc, 0, sizeof(*desc));
+ }
}
return 0;
@@ -398,8 +409,10 @@
static int mwifiex_init_rxq_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct sk_buff *skb;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
dma_addr_t buf_pa;
int i;
@@ -426,12 +439,23 @@
(u32)((u64)buf_pa >> 32));
card->rx_buf_list[i] = skb;
- card->rxbd_ring[i] = (void *)(card->rxbd_ring_vbase +
- (sizeof(*desc) * i));
- desc = card->rxbd_ring[i];
- desc->paddr = buf_pa;
- desc->len = (u16)skb->len;
- desc->flags = 0;
+ if (reg->pfu_enabled) {
+ card->rxbd_ring[i] = (void *)card->rxbd_ring_vbase +
+ (sizeof(*desc2) * i);
+ desc2 = card->rxbd_ring[i];
+ desc2->paddr = buf_pa;
+ desc2->len = (u16)skb->len;
+ desc2->frag_len = (u16)skb->len;
+ desc2->flags = reg->ring_flag_eop | reg->ring_flag_sop;
+ desc2->offset = 0;
+ } else {
+ card->rxbd_ring[i] = (void *)(card->rxbd_ring_vbase +
+ (sizeof(*desc) * i));
+ desc = card->rxbd_ring[i];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = 0;
+ }
}
return 0;
@@ -489,20 +513,33 @@
static void mwifiex_cleanup_txq_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct sk_buff *skb;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
int i;
for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- desc = card->txbd_ring[i];
- if (card->tx_buf_list[i]) {
- skb = card->tx_buf_list[i];
- pci_unmap_single(card->dev, desc->paddr, skb->len,
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(skb);
+ if (reg->pfu_enabled) {
+ desc2 = card->txbd_ring[i];
+ if (card->tx_buf_list[i]) {
+ skb = card->tx_buf_list[i];
+ pci_unmap_single(card->dev, desc2->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->txbd_ring[i];
+ if (card->tx_buf_list[i]) {
+ skb = card->tx_buf_list[i];
+ pci_unmap_single(card->dev, desc->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc, 0, sizeof(*desc));
}
card->tx_buf_list[i] = NULL;
- memset(desc, 0, sizeof(*desc));
}
return;
@@ -514,20 +551,33 @@
static void mwifiex_cleanup_rxq_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
struct sk_buff *skb;
int i;
for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- desc = card->rxbd_ring[i];
- if (card->rx_buf_list[i]) {
- skb = card->rx_buf_list[i];
- pci_unmap_single(card->dev, desc->paddr,
- MWIFIEX_RX_DATA_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb_any(skb);
+ if (reg->pfu_enabled) {
+ desc2 = card->rxbd_ring[i];
+ if (card->rx_buf_list[i]) {
+ skb = card->rx_buf_list[i];
+ pci_unmap_single(card->dev, desc2->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->rxbd_ring[i];
+ if (card->rx_buf_list[i]) {
+ skb = card->rx_buf_list[i];
+ pci_unmap_single(card->dev, desc->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc, 0, sizeof(*desc));
}
- memset(desc, 0, sizeof(*desc));
+ card->rx_buf_list[i] = NULL;
}
return;
@@ -571,12 +621,21 @@
* starts at zero with rollover bit set
*/
card->txbd_wrptr = 0;
- card->txbd_rdptr |= reg->tx_rollover_ind;
+
+ if (reg->pfu_enabled)
+ card->txbd_rdptr = 0;
+ else
+ card->txbd_rdptr |= reg->tx_rollover_ind;
/* allocate shared memory for the BD ring and divide the same in to
several descriptors */
- card->txbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
- MWIFIEX_MAX_TXRX_BD;
+ if (reg->pfu_enabled)
+ card->txbd_ring_size = sizeof(struct mwifiex_pfu_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+ else
+ card->txbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+
dev_dbg(adapter->dev, "info: txbd_ring: Allocating %d bytes\n",
card->txbd_ring_size);
card->txbd_ring_vbase = pci_alloc_consistent(card->dev,
@@ -632,8 +691,13 @@
card->rxbd_wrptr = 0;
card->rxbd_rdptr = reg->rx_rollover_ind;
- card->rxbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
- MWIFIEX_MAX_TXRX_BD;
+ if (reg->pfu_enabled)
+ card->rxbd_ring_size = sizeof(struct mwifiex_pfu_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+ else
+ card->rxbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+
dev_dbg(adapter->dev, "info: rxbd_ring: Allocating %d bytes\n",
card->rxbd_ring_size);
card->rxbd_ring_vbase = pci_alloc_consistent(card->dev,
@@ -695,7 +759,8 @@
card->evtbd_rdptr = reg->evt_rollover_ind;
card->evtbd_ring_size = sizeof(struct mwifiex_evt_buf_desc) *
- MWIFIEX_MAX_EVT_BD;
+ MWIFIEX_MAX_EVT_BD;
+
dev_dbg(adapter->dev, "info: evtbd_ring: Allocating %d bytes\n",
card->evtbd_ring_size);
card->evtbd_ring_vbase = pci_alloc_consistent(card->dev,
@@ -875,11 +940,11 @@
*/
static int mwifiex_pcie_send_data_complete(struct mwifiex_adapter *adapter)
{
- const u32 num_tx_buffs = MWIFIEX_MAX_TXRX_BD;
struct sk_buff *skb;
dma_addr_t buf_pa;
- u32 wrdoneidx, rdptr, unmap_count = 0;
+ u32 wrdoneidx, rdptr, num_tx_buffs, unmap_count = 0;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
@@ -896,12 +961,14 @@
dev_dbg(adapter->dev, "SEND COMP: rdptr_prev=0x%x, rdptr=0x%x\n",
card->txbd_rdptr, rdptr);
+ num_tx_buffs = MWIFIEX_MAX_TXRX_BD << reg->tx_start_ptr;
/* free from previous txbd_rdptr to current txbd_rdptr */
while (((card->txbd_rdptr & reg->tx_mask) !=
(rdptr & reg->tx_mask)) ||
((card->txbd_rdptr & reg->tx_rollover_ind) !=
(rdptr & reg->tx_rollover_ind))) {
- wrdoneidx = card->txbd_rdptr & reg->tx_mask;
+ wrdoneidx = (card->txbd_rdptr & reg->tx_mask) >>
+ reg->tx_start_ptr;
skb = card->tx_buf_list[wrdoneidx];
if (skb) {
@@ -922,9 +989,23 @@
}
card->tx_buf_list[wrdoneidx] = NULL;
- desc = card->txbd_ring[wrdoneidx];
- memset(desc, 0, sizeof(*desc));
- card->txbd_rdptr++;
+
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->txbd_ring[wrdoneidx];
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->txbd_ring[wrdoneidx];
+ memset(desc, 0, sizeof(*desc));
+ }
+ switch (card->dev->device) {
+ case PCIE_DEVICE_ID_MARVELL_88W8766P:
+ card->txbd_rdptr++;
+ break;
+ case PCIE_DEVICE_ID_MARVELL_88W8897:
+ card->txbd_rdptr += reg->ring_tx_start_ptr;
+ break;
+ }
+
if ((card->txbd_rdptr & reg->tx_mask) == num_tx_buffs)
card->txbd_rdptr = ((card->txbd_rdptr &
@@ -960,10 +1041,11 @@
{
struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- u32 wrindx;
+ u32 wrindx, num_tx_buffs, rx_val;
int ret;
dma_addr_t buf_pa;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
__le16 *tmp;
if (!(skb->data && skb->len)) {
@@ -975,6 +1057,7 @@
if (!mwifiex_pcie_ok_to_access_hw(adapter))
mwifiex_pm_wakeup_card(adapter);
+ num_tx_buffs = MWIFIEX_MAX_TXRX_BD << reg->tx_start_ptr;
dev_dbg(adapter->dev, "info: SEND DATA: <Rd: %#x, Wr: %#x>\n",
card->txbd_rdptr, card->txbd_wrptr);
if (mwifiex_pcie_txbd_not_full(card)) {
@@ -991,24 +1074,44 @@
PCI_DMA_TODEVICE))
return -1;
- wrindx = card->txbd_wrptr & reg->tx_mask;
+ wrindx = (card->txbd_wrptr & reg->tx_mask) >> reg->tx_start_ptr;
MWIFIEX_SKB_PACB(skb, &buf_pa);
card->tx_buf_list[wrindx] = skb;
- desc = card->txbd_ring[wrindx];
- desc->paddr = buf_pa;
- desc->len = (u16)skb->len;
- desc->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
- MWIFIEX_BD_FLAG_LAST_DESC;
- if ((++card->txbd_wrptr & reg->tx_mask) ==
- MWIFIEX_MAX_TXRX_BD)
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->txbd_ring[wrindx];
+ desc2->paddr = buf_pa;
+ desc2->len = (u16)skb->len;
+ desc2->frag_len = (u16)skb->len;
+ desc2->offset = 0;
+ desc2->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
+ MWIFIEX_BD_FLAG_LAST_DESC;
+ } else {
+ desc = card->txbd_ring[wrindx];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
+ MWIFIEX_BD_FLAG_LAST_DESC;
+ }
+
+ switch (card->dev->device) {
+ case PCIE_DEVICE_ID_MARVELL_88W8766P:
+ card->txbd_wrptr++;
+ break;
+ case PCIE_DEVICE_ID_MARVELL_88W8897:
+ card->txbd_wrptr += reg->ring_tx_start_ptr;
+ break;
+ }
+
+ if ((card->txbd_wrptr & reg->tx_mask) == num_tx_buffs)
card->txbd_wrptr = ((card->txbd_wrptr &
reg->tx_rollover_ind) ^
reg->tx_rollover_ind);
+ rx_val = card->rxbd_rdptr & reg->rx_wrap_mask;
/* Write the TX ring write pointer in to reg->tx_wrptr */
if (mwifiex_write_reg(adapter, reg->tx_wrptr,
- card->txbd_wrptr)) {
+ card->txbd_wrptr | rx_val)) {
dev_err(adapter->dev,
"SEND DATA: failed to write reg->tx_wrptr\n");
ret = -1;
@@ -1050,7 +1153,11 @@
MWIFIEX_SKB_PACB(skb, &buf_pa);
pci_unmap_single(card->dev, buf_pa, skb->len, PCI_DMA_TODEVICE);
card->tx_buf_list[wrindx] = NULL;
- memset(desc, 0, sizeof(*desc));
+ if (reg->pfu_enabled)
+ memset(desc2, 0, sizeof(*desc2));
+ else
+ memset(desc, 0, sizeof(*desc));
+
return ret;
}
@@ -1062,11 +1169,12 @@
{
struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- u32 wrptr, rd_index;
+ u32 wrptr, rd_index, tx_val;
dma_addr_t buf_pa;
int ret = 0;
struct sk_buff *skb_tmp = NULL;
struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
if (!mwifiex_pcie_ok_to_access_hw(adapter))
mwifiex_pm_wakeup_card(adapter);
@@ -1126,10 +1234,20 @@
"RECV DATA: Attach new sk_buff %p at rxbd_rdidx=%d\n",
skb_tmp, rd_index);
card->rx_buf_list[rd_index] = skb_tmp;
- desc = card->rxbd_ring[rd_index];
- desc->paddr = buf_pa;
- desc->len = skb_tmp->len;
- desc->flags = 0;
+
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->rxbd_ring[rd_index];
+ desc2->paddr = buf_pa;
+ desc2->len = skb_tmp->len;
+ desc2->frag_len = skb_tmp->len;
+ desc2->offset = 0;
+ desc2->flags = reg->ring_flag_sop | reg->ring_flag_eop;
+ } else {
+ desc = card->rxbd_ring[rd_index];
+ desc->paddr = buf_pa;
+ desc->len = skb_tmp->len;
+ desc->flags = 0;
+ }
if ((++card->rxbd_rdptr & reg->rx_mask) ==
MWIFIEX_MAX_TXRX_BD) {
@@ -1140,9 +1258,10 @@
dev_dbg(adapter->dev, "info: RECV DATA: <Rd: %#x, Wr: %#x>\n",
card->rxbd_rdptr, wrptr);
+ tx_val = card->txbd_wrptr & reg->tx_wrap_mask;
/* Write the RX ring read pointer in to reg->rx_rdptr */
if (mwifiex_write_reg(adapter, reg->rx_rdptr,
- card->rxbd_rdptr)) {
+ card->rxbd_rdptr | tx_val)) {
dev_err(adapter->dev,
"RECV DATA: failed to write reg->rx_rdptr\n");
ret = -1;
@@ -1242,9 +1361,11 @@
{
struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ int tx_wrap = card->txbd_wrptr & reg->tx_wrap_mask;
/* Write the RX ring read pointer in to reg->rx_rdptr */
- if (mwifiex_write_reg(adapter, reg->rx_rdptr, card->rxbd_rdptr)) {
+ if (mwifiex_write_reg(adapter, reg->rx_rdptr, card->rxbd_rdptr |
+ tx_wrap)) {
dev_err(adapter->dev,
"RECV DATA: failed to write reg->rx_rdptr\n");
return -1;
@@ -2259,7 +2380,7 @@
{
int ret;
- pr_debug("Marvell 8766 PCIe Driver\n");
+ pr_debug("Marvell PCIe Driver\n");
sema_init(&add_remove_card_sem, 1);
@@ -2302,4 +2423,5 @@
MODULE_DESCRIPTION("Marvell WiFi-Ex PCI-Express Driver version " PCIE_VERSION);
MODULE_VERSION(PCIE_VERSION);
MODULE_LICENSE("GPL v2");
-MODULE_FIRMWARE("mrvl/pcie8766_uapsta.bin");
+MODULE_FIRMWARE(PCIE8766_DEFAULT_FW_NAME);
+MODULE_FIRMWARE(PCIE8897_DEFAULT_FW_NAME);