1 files changed, 109 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/385-brcmfmac-Update-msgbuf-read-pointer-quicker.patch b/package/kernel/mac80211/patches/385-brcmfmac-Update-msgbuf-read-pointer-quicker.patch
new file mode 100644
index 0000000000..74df9f93f7
--- /dev/null
+++ b/package/kernel/mac80211/patches/385-brcmfmac-Update-msgbuf-read-pointer-quicker.patch
@@ -0,0 +1,109 @@
+From: Hante Meuleman <meuleman@broadcom.com>
+Date: Mon, 8 Jun 2015 14:38:32 +0200
+Subject: [PATCH] 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>
+---
+
+--- a/drivers/net/wireless/brcm80211/brcmfmac/commonring.c
++++ b/drivers/net/wireless/brcm80211/brcmfmac/commonring.c
+@@ -223,8 +223,6 @@ void brcmf_commonring_write_cancel(struc
+ 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(stru
+ 	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);
+ 
+--- a/drivers/net/wireless/brcm80211/brcmfmac/commonring.h
++++ b/drivers/net/wireless/brcm80211/brcmfmac/commonring.h
+@@ -62,7 +62,8 @@ void brcmf_commonring_write_cancel(struc
+ 				   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)
+--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
++++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
+@@ -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(stru
+ {
+ 	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;