ath11k: ce: support different CE configurations

QCA6390 uses only 9 Copy Engines while IPQ8074 may use 12, make it possible to
change CE configuration dynamically via hw_params.

The defines for host_ce_config_wlan and CE_COUNT are temporary solutions, they
will be removed in the following patches to keep things simple.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597576599-8857-4-git-send-email-kvalo@codeaurora.org

drivers/net/wireless/ath/ath11k/ahb.c

@@ -387,7 +387,7 @@ static void ath11k_ahb_kill_tasklets(struct ath11k_base *ab)
 	for (i = 0; i < CE_COUNT; i++) {
 		struct ath11k_ce_pipe *ce_pipe = &ab->ce.ce_pipe[i];
 
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		tasklet_kill(&ce_pipe->intr_tq);
@@ -476,7 +476,7 @@ static void ath11k_ahb_sync_ce_irqs(struct ath11k_base *ab)
 	int irq_idx;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
@@ -504,7 +504,7 @@ static void ath11k_ahb_ce_irqs_enable(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		ath11k_ahb_ce_irq_enable(ab, i);
 	}
@@ -515,7 +515,7 @@ static void ath11k_ahb_ce_irqs_disable(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		ath11k_ahb_ce_irq_disable(ab, i);
 	}
@@ -602,7 +602,7 @@ static void ath11k_ahb_free_irq(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
 		free_irq(ab->irq_num[irq_idx], &ab->ce.ce_pipe[i]);
@@ -759,7 +759,7 @@ static int ath11k_ahb_config_irq(struct ath11k_base *ab)
 	for (i = 0; i < CE_COUNT; i++) {
 		struct ath11k_ce_pipe *ce_pipe = &ab->ce.ce_pipe[i];
 
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		irq_idx = ATH11K_IRQ_CE0_OFFSET + i;

drivers/net/wireless/ath/ath11k/ce.c

@@ -7,7 +7,9 @@
 #include "debug.h"
 #include "hif.h"
 
-static const struct ce_attr host_ce_config_wlan[] = {
+#define host_ce_config_wlan ab->hw_params.host_ce_config
+
+const struct ce_attr ath11k_host_ce_config_ipq8074[] = {
 	/* CE0: host->target HTC control and raw streams */
 	{
 		.flags = CE_ATTR_FLAGS,
@@ -109,6 +111,84 @@ static const struct ce_attr host_ce_config_wlan[] = {
 	},
 };
 
+const struct ce_attr ath11k_host_ce_config_qca6390[] = {
+	/* CE0: host->target HTC control and raw streams */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 16,
+		.src_sz_max = 2048,
+		.dest_nentries = 0,
+	},
+
+	/* CE1: target->host HTT + HTC control */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 2048,
+		.dest_nentries = 512,
+		.recv_cb = ath11k_htc_rx_completion_handler,
+	},
+
+	/* CE2: target->host WMI */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 2048,
+		.dest_nentries = 512,
+		.recv_cb = ath11k_htc_rx_completion_handler,
+	},
+
+	/* CE3: host->target WMI (mac0) */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 32,
+		.src_sz_max = 2048,
+		.dest_nentries = 0,
+	},
+
+	/* CE4: host->target HTT */
+	{
+		.flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
+		.src_nentries = 2048,
+		.src_sz_max = 256,
+		.dest_nentries = 0,
+	},
+
+	/* CE5: target->host pktlog */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 2048,
+		.dest_nentries = 512,
+		.recv_cb = ath11k_dp_htt_htc_t2h_msg_handler,
+	},
+
+	/* CE6: target autonomous hif_memcpy */
+	{
+		.flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
+		.src_nentries = 0,
+		.src_sz_max = 0,
+		.dest_nentries = 0,
+	},
+
+	/* CE7: host->target WMI (mac1) */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 32,
+		.src_sz_max = 2048,
+		.dest_nentries = 0,
+	},
+
+	/* CE8: target autonomous hif_memcpy */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 0,
+		.dest_nentries = 0,
+	},
+
+};
+
 static int ath11k_ce_rx_buf_enqueue_pipe(struct ath11k_ce_pipe *pipe,
 					 struct sk_buff *skb, dma_addr_t paddr)
 {
@@ -834,7 +914,7 @@ void ath11k_ce_byte_swap(void *mem, u32 len)
 	}
 }
 
-int ath11k_ce_get_attr_flags(int ce_id)
+int ath11k_ce_get_attr_flags(struct ath11k_base *ab, int ce_id)
 {
 	if (ce_id >= CE_COUNT)
 		return -EINVAL;

drivers/net/wireless/ath/ath11k/ce.h

@@ -6,7 +6,8 @@
 #ifndef ATH11K_CE_H
 #define ATH11K_CE_H
 
-#define CE_COUNT 12
+#define CE_COUNT (ab->hw_params.ce_count)
+#define CE_COUNT_MAX 12
 
 /* Byte swap data words */
 #define CE_ATTR_BYTE_SWAP_DATA 2
@@ -165,11 +166,14 @@ struct ath11k_ce_pipe {
 };
 
 struct ath11k_ce {
-	struct ath11k_ce_pipe ce_pipe[CE_COUNT];
+	struct ath11k_ce_pipe ce_pipe[CE_COUNT_MAX];
 	/* Protects rings of all ce pipes */
 	spinlock_t ce_lock;
 };
 
+extern const struct ce_attr ath11k_host_ce_config_ipq8074[];
+extern const struct ce_attr ath11k_host_ce_config_qca6390[];
+
 void ath11k_ce_cleanup_pipes(struct ath11k_base *ab);
 void ath11k_ce_rx_replenish_retry(struct timer_list *t);
 void ath11k_ce_per_engine_service(struct ath11k_base *ab, u16 ce_id);
@@ -179,8 +183,9 @@ void ath11k_ce_rx_post_buf(struct ath11k_base *ab);
 int ath11k_ce_init_pipes(struct ath11k_base *ab);
 int ath11k_ce_alloc_pipes(struct ath11k_base *ab);
 void ath11k_ce_free_pipes(struct ath11k_base *ab);
-int ath11k_ce_get_attr_flags(int ce_id);
+int ath11k_ce_get_attr_flags(struct ath11k_base *ab, int ce_id);
 void ath11k_ce_poll_send_completed(struct ath11k_base *ab, u8 pipe_id);
 int ath11k_ce_map_service_to_pipe(struct ath11k_base *ab, u16 service_id,
 				  u8 *ul_pipe, u8 *dl_pipe);
+int ath11k_ce_attr_attach(struct ath11k_base *ab);
 #endif

drivers/net/wireless/ath/ath11k/core.c

@@ -33,6 +33,8 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
 		.ring_mask = &ath11k_hw_ring_mask_ipq8074,
 		.internal_sleep_clock = false,
 		.regs = &ipq8074_regs,
+		.host_ce_config = ath11k_host_ce_config_ipq8074,
+		.ce_count = 12,
 	},
 	{
 		.name = "qca6390 hw2.0",
@@ -48,6 +50,8 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
 		.ring_mask = &ath11k_hw_ring_mask_ipq8074,
 		.internal_sleep_clock = true,
 		.regs = &qca6390_regs,
+		.host_ce_config = ath11k_host_ce_config_qca6390,
+		.ce_count = 9,
 	},
 };
 

drivers/net/wireless/ath/ath11k/hal.c

@@ -1160,7 +1160,7 @@ void ath11k_hal_dump_srng_stats(struct ath11k_base *ab)
 	for (i = 0; i < CE_COUNT; i++) {
 		ce_pipe = &ab->ce.ce_pipe[i];
 
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		ath11k_err(ab, "CE_id %d pipe_num %d %ums before\n",

drivers/net/wireless/ath/ath11k/hw.c

@@ -9,6 +9,7 @@
 
 #include "hw.h"
 #include "core.h"
+#include "ce.h"
 
 /* Map from pdev index to hw mac index */
 static u8 ath11k_hw_ipq8074_mac_from_pdev_id(int pdev_idx)

drivers/net/wireless/ath/ath11k/hw.h

@@ -137,6 +137,8 @@ struct ath11k_hw_params {
 	bool internal_sleep_clock;
 
 	const struct ath11k_hw_regs *regs;
+	const struct ce_attr *host_ce_config;
+	u32 ce_count;
 };
 
 extern const struct ath11k_hw_ops ipq8074_ops;

drivers/net/wireless/ath/ath11k/pci.c

@@ -394,7 +394,7 @@ static void ath11k_pci_free_irq(struct ath11k_base *ab)
 	int i, irq_idx;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		irq_idx = ATH11K_PCI_IRQ_CE0_OFFSET + i;
 		free_irq(ab->irq_num[irq_idx], &ab->ce.ce_pipe[i]);
@@ -422,7 +422,7 @@ static void ath11k_pci_ce_irqs_disable(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		ath11k_pci_ce_irq_disable(ab, i);
 	}
@@ -434,7 +434,7 @@ static void ath11k_pci_sync_ce_irqs(struct ath11k_base *ab)
 	int irq_idx;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		irq_idx = ATH11K_PCI_IRQ_CE0_OFFSET + i;
@@ -482,7 +482,7 @@ static int ath11k_pci_config_irq(struct ath11k_base *ab)
 		irq = ath11k_pci_get_msi_irq(ab->dev, msi_data);
 		ce_pipe = &ab->ce.ce_pipe[i];
 
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		irq_idx = ATH11K_PCI_IRQ_CE0_OFFSET + i;
@@ -522,7 +522,7 @@ static void ath11k_pci_ce_irqs_enable(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < CE_COUNT; i++) {
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 		ath11k_pci_ce_irq_enable(ab, i);
 	}
@@ -683,7 +683,7 @@ static void ath11k_pci_kill_tasklets(struct ath11k_base *ab)
 	for (i = 0; i < CE_COUNT; i++) {
 		struct ath11k_ce_pipe *ce_pipe = &ab->ce.ce_pipe[i];
 
-		if (ath11k_ce_get_attr_flags(i) & CE_ATTR_DIS_INTR)
+		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
 			continue;
 
 		tasklet_kill(&ce_pipe->intr_tq);