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authorPing-Ke Shih <pkshih@realtek.com>2017-09-29 22:47:53 +0300
committerKalle Valo <kvalo@codeaurora.org>2017-10-13 12:43:38 +0300
commit0c07bd7457607b2bf846824424e78703c27ffd92 (patch)
tree732b630955d4f3f2b544647b3c818a6b0bbd93e1 /drivers/net/wireless/realtek/rtlwifi/pci.h
parentecf4000e0d925c6ba074d11801df4a4cdd8d5324 (diff)
downloadlinux-0c07bd7457607b2bf846824424e78703c27ffd92.tar.xz
rtlwifi: rtl8192ee: Make driver support 64bits DMA.
1. Both 32-bit and 64-bit use the same TX/RX buffer desc layout 2. Extend set_desc() and get_desc() to set and get 64-bit address 3. Remove directive DMA_IS_64BIT 4. Add module parameter to turn on 64-bit dma Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/pci.h')
-rw-r--r--drivers/net/wireless/realtek/rtlwifi/pci.h10
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.h b/drivers/net/wireless/realtek/rtlwifi/pci.h
index d9039ea10ba4..1af92b34979d 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.h
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.h
@@ -143,13 +143,7 @@ struct rtl_pci_capabilities_header {
* RX wifi info == RX descriptor in old flow
*/
struct rtl_tx_buffer_desc {
-#if (RTL8192EE_SEG_NUM == 2)
- u32 dword[2*(DMA_IS_64BIT + 1)*8]; /*seg = 8*/
-#elif (RTL8192EE_SEG_NUM == 1)
- u32 dword[2*(DMA_IS_64BIT + 1)*4]; /*seg = 4*/
-#elif (RTL8192EE_SEG_NUM == 0)
- u32 dword[2*(DMA_IS_64BIT + 1)*2]; /*seg = 2*/
-#endif
+ u32 dword[4 * (1 << (BUFDESC_SEG_NUM + 1))];
} __packed;
struct rtl_tx_desc {
@@ -157,7 +151,7 @@ struct rtl_tx_desc {
} __packed;
struct rtl_rx_buffer_desc { /*rx buffer desc*/
- u32 dword[2];
+ u32 dword[4];
} __packed;
struct rtl_rx_desc { /*old: rx desc new: rx wifi info*/