From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 18 Jun 2018 21:03:37 +0200
Subject: ath10k-ct: limit memory hunger

This is a problem with 128MiB RAM

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[sven@narfation.org: remove QCA4019 part of change, adjust commit message,
adjust it for ath10k-ct]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Forwarded: https://github.com/openwrt/openwrt/pull/1077

diff --git a/package/kernel/ath10k-ct/patches/960-0010-ath10k-limit-htt-rx-ring-size.patch b/package/kernel/ath10k-ct/patches/960-0010-ath10k-limit-htt-rx-ring-size.patch
new file mode 100644
index 0000000000000000000000000000000000000000..f84d8ad4c888655aac3aa21e1588c4c93feb92f9
--- /dev/null
+++ b/package/kernel/ath10k-ct/patches/960-0010-ath10k-limit-htt-rx-ring-size.patch
@@ -0,0 +1,11 @@
+--- a/ath10k/htt.h
++++ b/ath10k/htt.h
+@@ -198,7 +198,7 @@ enum htt_rx_ring_flags {
+ };
+ 
+ #define HTT_RX_RING_SIZE_MIN 128
+-#define HTT_RX_RING_SIZE_MAX 2048
++#define HTT_RX_RING_SIZE_MAX 512
+ 
+ struct htt_rx_ring_setup_ring {
+ 	__le32 fw_idx_shadow_reg_paddr;
diff --git a/package/kernel/ath10k-ct/patches/960-0011-ath10k-limit-pci-buffer-size.patch b/package/kernel/ath10k-ct/patches/960-0011-ath10k-limit-pci-buffer-size.patch
new file mode 100644
index 0000000000000000000000000000000000000000..95892d5d443f0960be06b543f06eed5309c9403a
--- /dev/null
+++ b/package/kernel/ath10k-ct/patches/960-0011-ath10k-limit-pci-buffer-size.patch
@@ -0,0 +1,38 @@
+--- a/ath10k/pci.c
++++ b/ath10k/pci.c
+@@ -127,7 +127,7 @@ static struct ce_attr host_ce_config_wla
+ 		.flags = CE_ATTR_FLAGS,
+ 		.src_nentries = 0,
+ 		.src_sz_max = 2048,
+-		.dest_nentries = 512,
++		.dest_nentries = 128,
+ 		.recv_cb = ath10k_pci_htt_htc_rx_cb,
+ 	},
+ 
+@@ -136,7 +136,7 @@ static struct ce_attr host_ce_config_wla
+ 		.flags = CE_ATTR_FLAGS,
+ 		.src_nentries = 0,
+ 		.src_sz_max = 2048,
+-		.dest_nentries = 128,
++		.dest_nentries = 64,
+ 		.recv_cb = ath10k_pci_htc_rx_cb,
+ 	},
+ 
+@@ -163,7 +163,7 @@ static struct ce_attr host_ce_config_wla
+ 		.flags = CE_ATTR_FLAGS,
+ 		.src_nentries = 0,
+ 		.src_sz_max = 512,
+-		.dest_nentries = 512,
++		.dest_nentries = 128,
+ 		.recv_cb = ath10k_pci_htt_rx_cb,
+ 	},
+ 
+@@ -188,7 +188,7 @@ static struct ce_attr host_ce_config_wla
+ 		.flags = CE_ATTR_FLAGS,
+ 		.src_nentries = 0,
+ 		.src_sz_max = 2048,
+-		.dest_nentries = 128,
++		.dest_nentries = 96,
+ 		.recv_cb = ath10k_pci_pktlog_rx_cb,
+ 	},
+