wifi: rtw89: 8852b: adjust quota to avoid SER L1 caused by access null page

BugLink: https://bugs.launchpad.net/bugs/2028979

[ Upstream commit c0426c4 ]

Though SER can recover this case, traffic can get stuck for a while. Fix it
by adjusting page quota to avoid hardware access null page of CMAC/DMAC.

Fixes: a1cb097 ("wifi: rtw89: 8852b: configure DLE mem")
Fixes: 3e870b4 ("wifi: rtw89: 8852b: add HFC quota arrays")
Cc: stable@vger.kernel.org
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Link: lwfinger/rtw89#226 (comment)
Link: lwfinger/rtw89#240
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230426034737.24870-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

Author: Ping-Ke Shih

drivers/net/wireless/realtek/rtw89/mac.c

@@ -1422,6 +1422,8 @@ const struct rtw89_mac_size_set rtw89_mac_size = {
 	.wde_size4 = {RTW89_WDE_PG_64, 0, 4096,},
 	/* PCIE 64 */
 	.wde_size6 = {RTW89_WDE_PG_64, 512, 0,},
+	/* 8852B PCIE SCC */
+	.wde_size7 = {RTW89_WDE_PG_64, 510, 2,},
 	/* DLFW */
 	.wde_size9 = {RTW89_WDE_PG_64, 0, 1024,},
 	/* 8852C DLFW */
@@ -1446,6 +1448,8 @@ const struct rtw89_mac_size_set rtw89_mac_size = {
 	.wde_qt4 = {0, 0, 0, 0,},
 	/* PCIE 64 */
 	.wde_qt6 = {448, 48, 0, 16,},
+	/* 8852B PCIE SCC */
+	.wde_qt7 = {446, 48, 0, 16,},
 	/* 8852C DLFW */
 	.wde_qt17 = {0, 0, 0,  0,},
 	/* 8852C PCIE SCC */

drivers/net/wireless/realtek/rtw89/mac.h

@@ -789,6 +789,7 @@ struct rtw89_mac_size_set {
 	const struct rtw89_dle_size wde_size0;
 	const struct rtw89_dle_size wde_size4;
 	const struct rtw89_dle_size wde_size6;
+	const struct rtw89_dle_size wde_size7;
 	const struct rtw89_dle_size wde_size9;
 	const struct rtw89_dle_size wde_size18;
 	const struct rtw89_dle_size wde_size19;
@@ -801,6 +802,7 @@ struct rtw89_mac_size_set {
 	const struct rtw89_wde_quota wde_qt0;
 	const struct rtw89_wde_quota wde_qt4;
 	const struct rtw89_wde_quota wde_qt6;
+	const struct rtw89_wde_quota wde_qt7;
 	const struct rtw89_wde_quota wde_qt17;
 	const struct rtw89_wde_quota wde_qt18;
 	const struct rtw89_ple_quota ple_qt4;

drivers/net/wireless/realtek/rtw89/rtw8852b.c

@@ -13,25 +13,25 @@
 #include "txrx.h"
 
 static const struct rtw89_hfc_ch_cfg rtw8852b_hfc_chcfg_pcie[] = {
-	{5, 343, grp_0}, /* ACH 0 */
-	{5, 343, grp_0}, /* ACH 1 */
-	{5, 343, grp_0}, /* ACH 2 */
-	{5, 343, grp_0}, /* ACH 3 */
+	{5, 341, grp_0}, /* ACH 0 */
+	{5, 341, grp_0}, /* ACH 1 */
+	{4, 342, grp_0}, /* ACH 2 */
+	{4, 342, grp_0}, /* ACH 3 */
 	{0, 0, grp_0}, /* ACH 4 */
 	{0, 0, grp_0}, /* ACH 5 */
 	{0, 0, grp_0}, /* ACH 6 */
 	{0, 0, grp_0}, /* ACH 7 */
-	{4, 344, grp_0}, /* B0MGQ */
-	{4, 344, grp_0}, /* B0HIQ */
+	{4, 342, grp_0}, /* B0MGQ */
+	{4, 342, grp_0}, /* B0HIQ */
 	{0, 0, grp_0}, /* B1MGQ */
 	{0, 0, grp_0}, /* B1HIQ */
 	{40, 0, 0} /* FWCMDQ */
 };
 
 static const struct rtw89_hfc_pub_cfg rtw8852b_hfc_pubcfg_pcie = {
-	448, /* Group 0 */
+	446, /* Group 0 */
 	0, /* Group 1 */
-	448, /* Public Max */
+	446, /* Public Max */
 	0 /* WP threshold */
 };
 
@@ -44,9 +44,9 @@ static const struct rtw89_hfc_param_ini rtw8852b_hfc_param_ini_pcie[] = {
 };
 
 static const struct rtw89_dle_mem rtw8852b_dle_mem_pcie[] = {
-	[RTW89_QTA_SCC] = {RTW89_QTA_SCC, &rtw89_mac_size.wde_size6,
-			   &rtw89_mac_size.ple_size6, &rtw89_mac_size.wde_qt6,
-			   &rtw89_mac_size.wde_qt6, &rtw89_mac_size.ple_qt18,
+	[RTW89_QTA_SCC] = {RTW89_QTA_SCC, &rtw89_mac_size.wde_size7,
+			   &rtw89_mac_size.ple_size6, &rtw89_mac_size.wde_qt7,
+			   &rtw89_mac_size.wde_qt7, &rtw89_mac_size.ple_qt18,
 			   &rtw89_mac_size.ple_qt58},
 	[RTW89_QTA_DLFW] = {RTW89_QTA_DLFW, &rtw89_mac_size.wde_size9,
 			    &rtw89_mac_size.ple_size8, &rtw89_mac_size.wde_qt4,