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rtl8xxxu: Allocate larger RX skbs when aggregation is enabled

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This adds support for allocating larger skbs for devices which
indicate they support it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Jes Sorensen 2016-06-27 12:32:04 -04:00 committed by Kalle Valo
parent 040b97be60
commit 04319ae2f6
2 changed files with 11 additions and 4 deletions
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2
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
View File

@ -1247,6 +1247,7 @@ struct rtl8xxxu_priv {
u32 ep_tx_normal_queue:1;
u32 ep_tx_low_queue:1;
u32 has_xtalk:1;
u32 rx_buf_aggregation:1;
u8 xtalk;
unsigned int pipe_interrupt;
unsigned int pipe_in;
@ -1330,6 +1331,7 @@ struct rtl8xxxu_fileops {
void (*report_connect) (struct rtl8xxxu_priv *priv,
u8 macid, bool connect);
int writeN_block_size;
int rx_agg_buf_size;
char tx_desc_size;
char rx_desc_size;
char has_s0s1;

13
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
View File

@ -64,8 +64,6 @@ module_param_named(ht40_2g, rtl8xxxu_ht40_2g, bool, 0600);
MODULE_PARM_DESC(ht40_2g, "Enable HT40 support on the 2.4GHz band");
#define USB_VENDOR_ID_REALTEK 0x0bda
/* Minimum IEEE80211_MAX_FRAME_LEN */
#define RTL_RX_BUFFER_SIZE IEEE80211_MAX_FRAME_LEN
#define RTL8XXXU_RX_URBS 32
#define RTL8XXXU_RX_URB_PENDING_WATER 8
#define RTL8XXXU_TX_URBS 64
@ -5271,12 +5269,19 @@ cleanup:
static int rtl8xxxu_submit_rx_urb(struct rtl8xxxu_priv *priv,
struct rtl8xxxu_rx_urb *rx_urb)
{
struct rtl8xxxu_fileops *fops = priv->fops;
struct sk_buff *skb;
int skb_size;
int ret, rx_desc_sz;
rx_desc_sz = priv->fops->rx_desc_size;
skb_size = rx_desc_sz + RTL_RX_BUFFER_SIZE;
rx_desc_sz = fops->rx_desc_size;
if (priv->rx_buf_aggregation && fops->rx_agg_buf_size)
skb_size = fops->rx_agg_buf_size;
else
skb_size = IEEE80211_MAX_FRAME_LEN;
skb_size += rx_desc_sz;
skb = __netdev_alloc_skb(NULL, skb_size, GFP_KERNEL);
if (!skb)
return -ENOMEM;