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From:   Chi-Hsien Lin <chi-hsien.lin@cypress.com>
To:     linux-wireless@vger.kernel.org
Cc:     brcm80211-dev-list@broadcom.com, brcm80211-dev-list@cypress.com,
        Arend van Spriel <arend.vanspriel@broadcom.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
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        Kalle Valo <kvalo@codeaurora.org>,
        Jia-Shyr Chuang <joseph.chuang@cypress.com>,
        Soontak Lee <soontak.lee@cypress.com>,
        Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Subject: [PATCH V2 2/6] brcmfmac: increase message buffer size for control packets
Date:   Wed, 10 Jun 2020 10:21:02 -0500
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From: Jia-Shyr Chuang <joseph.chuang@cypress.com>

In wifi firmware, max length of IOCTL/IOVAR buffer size is 8192.
Increase the message buffer max size same as wifi firmware for control
packets so return buffers can come back.

Signed-off-by: Soontak Lee <soontak.lee@cypress.com>
Signed-off-by: Jia-Shyr Chuang <joseph.chuang@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
index 8bb4f1fa790e..f1a20db8daab 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
@@ -54,6 +54,7 @@
 #define BRCMF_IOCTL_REQ_PKTID			0xFFFE
 
 #define BRCMF_MSGBUF_MAX_PKT_SIZE		2048
+#define BRCMF_MSGBUF_MAX_CTL_PKT_SIZE           8192
 #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD	32
 #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST	8
 #define BRCMF_MSGBUF_MAX_EVENTBUF_POST		8
@@ -1028,7 +1029,7 @@ brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf,
 		rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr;
 		memset(rx_bufpost, 0, sizeof(*rx_bufpost));
 
-		skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE);
+		skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_CTL_PKT_SIZE);
 
 		if (skb == NULL) {
 			bphy_err(drvr, "Failed to alloc SKB\n");
-- 
2.25.0