gitops/mt76
1
0
Fork 0
mirror of https://github.com/outbackdingo/mt76.git synced 2026-10-24 13:26:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

mt76: mt76u: introduce mt76u_skb_dma_info routine

Browse Source 
Introduce mt76u_skb_dma_info utility routine in mt76-usb module in order
to be reused adding mt7663u support

Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2020-01-27 17:48:38 +01:00
committed by Felix Fietkau
parent 8c6cf328eb
commit e742618fc5
3 changed files with 32 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mt76.h
+1
View File
@@ -881,6 +881,7 @@ mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len,
return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout);
}
int mt76u_skb_dma_info(struct sk_buff *skb, u32 info);
int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
u8 req_type, u16 val, u16 offset,
void *buf, size_t len);
mt76x02_usb_core.c
+2 -23
View File
@@ -46,8 +46,7 @@ EXPORT_SYMBOL_GPL(mt76x02u_mac_start);
int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
{
struct sk_buff *iter, *last = skb;
u32 info, pad;
u32 info;
/* Buffer layout:
* | 4B | xfer len | pad | 4B |
@@ -57,28 +56,8 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
*/
info = FIELD_PREP(MT_TXD_INFO_LEN, round_up(skb->len, 4)) |
FIELD_PREP(MT_TXD_INFO_DPORT, port) | flags;
put_unaligned_le32(info, skb_push(skb, sizeof(info)));
/* Add zero pad of 4 - 7 bytes */
pad = round_up(skb->len, 4) + 4 - skb->len;
/* First packet of a A-MSDU burst keeps track of the whole burst
* length, need to update length of it and the last packet.
*/
skb_walk_frags(skb, iter) {
last = iter;
if (!iter->next) {
skb->data_len += pad;
skb->len += pad;
break;
}
}
if (skb_pad(last, pad))
return -ENOMEM;
__skb_put(last, pad);
return 0;
return mt76u_skb_dma_info(skb, info);
}
int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
usb.c
+29
View File
@@ -907,6 +907,35 @@ mt76u_tx_setup_buffers(struct mt76_dev *dev, struct sk_buff *skb,
return urb->num_sgs;
}
int mt76u_skb_dma_info(struct sk_buff *skb, u32 info)
{
struct sk_buff *iter, *last = skb;
u32 pad;
put_unaligned_le32(info, skb_push(skb, sizeof(info)));
/* Add zero pad of 4 - 7 bytes */
pad = round_up(skb->len, 4) + 4 - skb->len;
/* First packet of a A-MSDU burst keeps track of the whole burst
* length, need to update length of it and the last packet.
*/
skb_walk_frags(skb, iter) {
last = iter;
if (!iter->next) {
skb->data_len += pad;
skb->len += pad;
break;
}
}
if (skb_pad(last, pad))
return -ENOMEM;
__skb_put(last, pad);
return 0;
}
EXPORT_SYMBOL_GPL(mt76u_skb_dma_info);
static int
mt76u_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
struct sk_buff *skb, struct mt76_wcid *wcid,