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path: root/drivers/net/wireless/ath/wil6210/txrx.c
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Diffstat (limited to 'drivers/net/wireless/ath/wil6210/txrx.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/txrx.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index d1315b4..7970245 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -14,10 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-#include <linux/hardirq.h>
#include <net/ieee80211_radiotap.h>
#include <linux/if_arp.h>
#include <linux/moduleparam.h>
@@ -83,8 +80,6 @@ static int wil_vring_alloc(struct wil6210_priv *wil, struct vring *vring)
*/
vring->va = dma_alloc_coherent(dev, sz, &vring->pa, GFP_KERNEL);
if (!vring->va) {
- wil_err(wil, "vring_alloc [%d] failed to alloc DMA mem\n",
- vring->size);
kfree(vring->ctx);
vring->ctx = NULL;
return -ENOMEM;
@@ -196,8 +191,7 @@ static int wil_vring_alloc_skb(struct wil6210_priv *wil, struct vring *vring,
* - Phy info
*/
static void wil_rx_add_radiotap_header(struct wil6210_priv *wil,
- struct sk_buff *skb,
- volatile struct vring_rx_desc *d)
+ struct sk_buff *skb)
{
struct wireless_dev *wdev = wil->wdev;
struct wil6210_rtap {
@@ -221,6 +215,7 @@ static void wil_rx_add_radiotap_header(struct wil6210_priv *wil,
__le16 vendor_skip;
u8 vendor_data[0];
} __packed;
+ struct vring_rx_desc *d = wil_skb_rxdesc(skb);
struct wil6210_rtap_vendor *rtap_vendor;
int rtap_len = sizeof(struct wil6210_rtap);
int phy_length = 0; /* phy info header size, bytes */
@@ -317,6 +312,8 @@ static void wil_swap_ethaddr(void *data)
/**
* reap 1 frame from @swhead
*
+ * Rx descriptor copied to skb->cb
+ *
* Safe to call from IRQ
*/
static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
@@ -325,12 +322,15 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
struct device *dev = wil_to_dev(wil);
struct net_device *ndev = wil_to_ndev(wil);
volatile struct vring_rx_desc *d;
+ struct vring_rx_desc *d1;
struct sk_buff *skb;
dma_addr_t pa;
unsigned int sz = RX_BUF_LEN;
u8 ftype;
u8 ds_bits;
+ BUILD_BUG_ON(sizeof(struct vring_rx_desc) > sizeof(skb->cb));
+
if (wil_vring_is_empty(vring))
return NULL;
@@ -345,11 +345,14 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
dma_unmap_single(dev, pa, sz, DMA_FROM_DEVICE);
skb_trim(skb, d->dma.length);
- wil->stats.last_mcs_rx = wil_rxdesc_mcs(d);
+ d1 = wil_skb_rxdesc(skb);
+ *d1 = *d;
+
+ wil->stats.last_mcs_rx = wil_rxdesc_mcs(d1);
/* use radiotap header only if required */
if (ndev->type == ARPHRD_IEEE80211_RADIOTAP)
- wil_rx_add_radiotap_header(wil, skb, d);
+ wil_rx_add_radiotap_header(wil, skb);
wil_dbg_txrx(wil, "Rx[%3d] : %d bytes\n", vring->swhead, d->dma.length);
wil_hex_dump_txrx("Rx ", DUMP_PREFIX_NONE, 32, 4,
@@ -365,7 +368,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
* Driver should recognize it by frame type, that is found
* in Rx descriptor. If type is not data, it is 802.11 frame as is
*/
- ftype = wil_rxdesc_ftype(d) << 2;
+ ftype = wil_rxdesc_ftype(d1) << 2;
if (ftype != IEEE80211_FTYPE_DATA) {
wil_dbg_txrx(wil, "Non-data frame ftype 0x%08x\n", ftype);
/* TODO: process it */
@@ -380,7 +383,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
return NULL;
}
- ds_bits = wil_rxdesc_ds_bits(d);
+ ds_bits = wil_rxdesc_ds_bits(d1);
if (ds_bits == 1) {
/*
* HW bug - in ToDS mode, i.e. Rx on AP side,
@@ -522,6 +525,7 @@ int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size,
.vring_cfg = {
.tx_sw_ring = {
.max_mpdu_size = cpu_to_le16(TX_BUF_LEN),
+ .ring_size = cpu_to_le16(size),
},
.ringid = id,
.cidxtid = (cid & 0xf) | ((tid & 0xf) << 4),
@@ -553,14 +557,13 @@ int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size,
goto out;
cmd.vring_cfg.tx_sw_ring.ring_mem_base = cpu_to_le64(vring->pa);
- cmd.vring_cfg.tx_sw_ring.ring_size = cpu_to_le16(vring->size);
rc = wmi_call(wil, WMI_VRING_CFG_CMDID, &cmd, sizeof(cmd),
WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply), 100);
if (rc)
goto out_free;
- if (reply.cmd.status != WMI_VRING_CFG_SUCCESS) {
+ if (reply.cmd.status != WMI_FW_STATUS_SUCCESS) {
wil_err(wil, "Tx config failed, status 0x%02x\n",
reply.cmd.status);
rc = -EINVAL;
@@ -784,9 +787,14 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
wil_dbg_txrx(wil, "%s(%d)\n", __func__, ringid);
while (!wil_vring_is_empty(vring)) {
- volatile struct vring_tx_desc *d = &vring->va[vring->swtail].tx;
+ volatile struct vring_tx_desc *d1 =
+ &vring->va[vring->swtail].tx;
+ struct vring_tx_desc dd, *d = &dd;
dma_addr_t pa;
struct sk_buff *skb;
+
+ dd = *d1;
+
if (!(d->dma.status & TX_DMA_STATUS_DU))
break;
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