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From:   Ian Lin <ian.lin@infineon.com>
To:     <linux-wireless@vger.kernel.org>
CC:     <brcm80211-dev-list@broadcom.com>,
        <brcm80211-dev-list@cypress.com>, <franky.lin@broadcom.com>,
        <hante.meuleman@broadcom.com>, <kvalo@kernel.org>,
        <Double.Lo@infineon.com>, <ian.lin@infineon.com>
Subject: [PATCH v2 3/4] brcmfmac: increase dcmd maximum buffer size
Date:   Thu, 22 Sep 2022 05:41:39 -0500
Message-ID: <20220922104140.11889-4-ian.lin@infineon.com>
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From: "Lo(Double)Hsiang Lo" <double.lo@cypress.com>

Increase dcmd maximum buffer size to match firmware
configuration for new chips.

Signed-off-by: Lo(Double)Hsiang Lo <double.lo@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Ian Lin <ian.lin@infineon.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
index 02a56edf08ba..9ec0c60b6da1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
@@ -87,6 +87,8 @@ struct brcmf_proto_bcdc_header {
 					 * plus any space that might be needed
 					 * for bus alignment padding.
 					 */
+#define ROUND_UP_MARGIN 2048
+
 struct brcmf_bcdc {
 	u16 reqid;
 	u8 bus_header[BUS_HEADER_LEN];
@@ -470,7 +472,7 @@ int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr)
 
 	drvr->hdrlen += BCDC_HEADER_LEN + BRCMF_PROT_FW_SIGNAL_MAX_TXBYTES;
 	drvr->bus_if->maxctl = BRCMF_DCMD_MAXLEN +
-			sizeof(struct brcmf_proto_bcdc_dcmd);
+			sizeof(struct brcmf_proto_bcdc_dcmd) + ROUND_UP_MARGIN;
 	return 0;
 
 fail:
-- 
2.25.0