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brcmfmac: Update msgbuf read pointer quicker. 

On device to host data using msgbuf the read pointer gets updated
once all data is processed. Updating this pointer more frequently
allows the firmware to add more data quicker. This will result in
slightly higher and more stable throughput on CPU bounded host
processors.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Hante Meuleman 2015-06-08 14:38:32 +02:00 committed by Kalle Valo
parent e996db6983
commit df738c2f0c
3 changed files with 21 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/wireless/brcm80211/brcmfmac/commonring.c
View File

@ -223,8 +223,6 @@ void brcmf_commonring_write_cancel(struct brcmf_commonring *commonring,
void *brcmf_commonring_get_read_ptr(struct brcmf_commonring *commonring,
u16 *n_items)
{
void *ret_addr;
if (commonring->cr_update_wptr)
commonring->cr_update_wptr(commonring->cr_ctx);
@ -235,19 +233,18 @@ void *brcmf_commonring_get_read_ptr(struct brcmf_commonring *commonring,
if (*n_items == 0)
return NULL;
ret_addr = commonring->buf_addr +
(commonring->r_ptr * commonring->item_len);
commonring->r_ptr += *n_items;
if (commonring->r_ptr == commonring->depth)
commonring->r_ptr = 0;
return ret_addr;
return commonring->buf_addr +
(commonring->r_ptr * commonring->item_len);
}
int brcmf_commonring_read_complete(struct brcmf_commonring *commonring)
int brcmf_commonring_read_complete(struct brcmf_commonring *commonring,
u16 n_items)
{
commonring->r_ptr += n_items;
if (commonring->r_ptr == commonring->depth)
commonring->r_ptr = 0;
if (commonring->cr_write_rptr)
return commonring->cr_write_rptr(commonring->cr_ctx);

3
drivers/net/wireless/brcm80211/brcmfmac/commonring.h
View File

@ -62,7 +62,8 @@ void brcmf_commonring_write_cancel(struct brcmf_commonring *commonring,
u16 n_items);
void *brcmf_commonring_get_read_ptr(struct brcmf_commonring *commonring,
u16 *n_items);
int brcmf_commonring_read_complete(struct brcmf_commonring *commonring);
int brcmf_commonring_read_complete(struct brcmf_commonring *commonring,
u16 n_items);
#define brcmf_commonring_n_items(commonring) (commonring->depth)
#define brcmf_commonring_len_item(commonring) (commonring->item_len)

12
drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
View File

@ -75,6 +75,8 @@
#define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96
#define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32
#define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48
struct msgbuf_common_hdr {
u8 msgtype;
@ -1257,19 +1259,27 @@ static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf,
{
void *buf;
u16 count;
u16 processed;
again:
buf = brcmf_commonring_get_read_ptr(commonring, &count);
if (buf == NULL)
return;
processed = 0;
while (count) {
brcmf_msgbuf_process_msgtype(msgbuf,
buf + msgbuf->rx_dataoffset);
buf += brcmf_commonring_len_item(commonring);
processed++;
if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) {
brcmf_commonring_read_complete(commonring, processed);
processed = 0;
}
count--;
}
brcmf_commonring_read_complete(commonring);
if (processed)
brcmf_commonring_read_complete(commonring, processed);
if (commonring->r_ptr == 0)
goto again;