qcacmn: Add NAN TX checksum offload INI entry

Currently there is a single INI item tcp_udp_checksumoffload to enable
or disable this feature for all the adapters. In some cases, we want to
be able to enable this feature selectively for NAN mode.

Add nan_tcp_udp_checksumoffload ini item to enable or disable checksum
offload feature specifically for NAN mode. If
nan_tcp_udp_checksumoffload is 'true' and tcp_udp_checksumoffload is
false, hardware checksum offload will be enabled only for the NAN
adapter and not for other adapters.

CRs-Fixed: 2693638
Change-Id: I6e255ce68ddc7b01ebdefe4e5e8d2c985388fefe

dp/inc/cdp_txrx_cmn_struct.h

@@ -2172,7 +2172,8 @@ struct cdp_rx_indication_msdu {
  * @lro_enable: Enable/Disable LRO
  * @gro_enable: Enable/Disable GRO
  * @flow_steering_enable: Enable/Disable Rx Hash based flow steering
- * @tcp_Udp_ChecksumOffload: Enable/Disable tcp-Udp checksum Offload
+ * @nan_tcp_udp_checksumoffload: Enable/Disable TCP/UDP Checksum Offload for NAN
+ * @tcp_udp_checksumoffload: Enable/Disable TCP/UDP Checksum Offload
  * @napi_enable: Enable/Disable Napi
  * @ipa_enable: Flag indicating if IPA is enabled or not
  * @tx_flow_stop_queue_threshold: Value to Pause tx queues
@@ -2187,6 +2188,7 @@ struct cdp_config_params {
 	unsigned int lro_enable:1;
 	unsigned int gro_enable:1;
 	unsigned int flow_steering_enable:1;
+	unsigned int nan_tcp_udp_checksumoffload:1;
 	unsigned int tcp_udp_checksumoffload:1;
 	unsigned int napi_enable:1;
 	unsigned int ipa_enable:1;
@@ -2246,6 +2248,9 @@ struct cdp_monitor_filter {
  */
 enum cdp_dp_cfg {
 	cfg_dp_enable_data_stall,
+	/* checksum offload for NAN interface */
+	cfg_dp_enable_nan_ip_tcp_udp_checksum_offload,
+	/* generic checksum offload for other interfaces */
 	cfg_dp_enable_ip_tcp_udp_checksum_offload,
 	cfg_dp_tso_enable,
 	cfg_dp_lro_enable,

dp/inc/cdp_txrx_mob_def.h

@@ -285,6 +285,8 @@ struct txrx_pdev_cfg_param_t {
 	uint32_t uc_tx_partition_base;
 	/* IP, TCP and UDP checksum offload */
 	bool ip_tcp_udp_checksum_offload;
+	/* IP, TCP and UDP checksum offload for NAN Mode*/
+	bool nan_ip_tcp_udp_checksum_offload;
 	/* Rx processing in thread from TXRX */
 	bool enable_rxthread;
 	/* CE classification enabled through INI */

dp/wifi3.0/dp_main.c

@@ -8807,6 +8807,8 @@ QDF_STATUS dp_update_config_parameters(struct cdp_soc *psoc,
 	soc->wlan_cfg_ctx->tso_enabled = params->tso_enable;
 	soc->wlan_cfg_ctx->lro_enabled = params->lro_enable;
 	soc->wlan_cfg_ctx->rx_hash = params->flow_steering_enable;
+	soc->wlan_cfg_ctx->nan_tcp_udp_checksumoffload =
+				params->nan_tcp_udp_checksumoffload;
 	soc->wlan_cfg_ctx->tcp_udp_checksumoffload =
 				params->tcp_udp_checksumoffload;
 	soc->wlan_cfg_ctx->napi_enabled = params->napi_enable;
@@ -9460,6 +9462,9 @@ static uint32_t dp_get_cfg(struct cdp_soc_t *soc, enum cdp_dp_cfg cfg)
 	case cfg_dp_enable_data_stall:
 		value = dpsoc->wlan_cfg_ctx->enable_data_stall_detection;
 		break;
+	case cfg_dp_enable_nan_ip_tcp_udp_checksum_offload:
+		value = dpsoc->wlan_cfg_ctx->nan_tcp_udp_checksumoffload;
+		break;
 	case cfg_dp_enable_ip_tcp_udp_checksum_offload:
 		value = dpsoc->wlan_cfg_ctx->tcp_udp_checksumoffload;
 		break;

dp/wifi3.0/dp_stats.c

@@ -4946,6 +4946,8 @@ void dp_print_soc_cfg_params(struct dp_soc *soc)
 		       soc_cfg_ctx->peer_flow_ctrl_enabled);
 	DP_PRINT_STATS("napi enabled: %u ",
 		       soc_cfg_ctx->napi_enabled);
+	DP_PRINT_STATS("NAN Tcp Udp checksum offload: %u ",
+		       soc_cfg_ctx->nan_tcp_udp_checksumoffload);
 	DP_PRINT_STATS("Tcp Udp checksum offload: %u ",
 		       soc_cfg_ctx->tcp_udp_checksumoffload);
 	DP_PRINT_STATS("Defrag timeout check: %u ",

dp/wifi3.0/dp_tx.c

@@ -1212,8 +1212,8 @@ static QDF_STATUS dp_tx_hw_enqueue(struct dp_soc *soc, struct dp_vdev *vdev,
 		hal_tx_desc_set_to_fw(hal_tx_desc_cached, 1);
 
 	/* verify checksum offload configuration*/
-	if ((wlan_cfg_get_checksum_offload(soc->wlan_cfg_ctx)) &&
+	if (vdev->csum_enabled &&
-		((qdf_nbuf_get_tx_cksum(tx_desc->nbuf) == QDF_NBUF_TX_CKSUM_TCP_UDP)
+	    ((qdf_nbuf_get_tx_cksum(tx_desc->nbuf) == QDF_NBUF_TX_CKSUM_TCP_UDP)
 		|| qdf_nbuf_is_tso(tx_desc->nbuf)))  {
 		hal_tx_desc_set_l3_checksum_en(hal_tx_desc_cached, 1);
 		hal_tx_desc_set_l4_checksum_en(hal_tx_desc_cached, 1);
@@ -4015,6 +4015,26 @@ qdf_nbuf_t dp_tx_non_std(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
 }
 #endif
 
+static void dp_tx_vdev_update_feature_flags(struct dp_vdev *vdev)
+{
+	struct wlan_cfg_dp_soc_ctxt *cfg;
+
+	struct dp_soc *soc;
+
+	soc = vdev->pdev->soc;
+	if (!soc)
+		return;
+
+	cfg = soc->wlan_cfg_ctx;
+	if (!cfg)
+		return;
+
+	if (vdev->opmode == wlan_op_mode_ndi)
+		vdev->csum_enabled = wlan_cfg_get_nan_checksum_offload(cfg);
+	else
+		vdev->csum_enabled = wlan_cfg_get_checksum_offload(cfg);
+}
+
 /**
  * dp_tx_vdev_attach() - attach vdev to dp tx
  * @vdev: virtual device instance
@@ -4046,6 +4066,8 @@ QDF_STATUS dp_tx_vdev_attach(struct dp_vdev *vdev)
 
 	dp_tx_vdev_update_search_flags(vdev);
 
+	dp_tx_vdev_update_feature_flags(vdev);
+
 	return QDF_STATUS_SUCCESS;
 }
 

dp/wifi3.0/dp_types.h

@@ -1940,6 +1940,9 @@ struct dp_vdev {
 	/* Multicast enhancement enabled */
 	uint8_t mcast_enhancement_en;
 
+	/* HW TX Checksum Enabled Flag */
+	uint8_t csum_enabled;
+
 	/* vdev_id - ID used to specify a particular vdev to the target */
 	uint8_t vdev_id;
 

wlan_cfg/cfg_dp.h

@@ -552,6 +552,32 @@
 	CFG_INI_BOOL("dp_napi_enabled", PLATFORM_VALUE(true, false), \
 	"DP Napi Enabled")
 
+/*
+ * <ini>
+ * gEnableNanIpTcpUdpChecksumOffload - Enable checksum offload for NAN mode
+ * @Min: 0
+ * @Max: 1
+ * @Default: 1
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_DP_NAN_TCP_UDP_CKSUM_OFFLOAD \
+		CFG_INI_BOOL("gEnableNanIpTcpUdpChecksumOffload", true, \
+		"DP TCP UDP Checksum Offload for NAN mode")
+
+/*
+ * <ini>
+ * gEnableIpTcpUdpChecksumOffload - Enable checksum offload
+ * @Min: 0
+ * @Max: 1
+ * @Default: 1
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
 #define CFG_DP_TCP_UDP_CKSUM_OFFLOAD \
 	CFG_INI_BOOL("gEnableIpTcpUdpChecksumOffload", true, \
 	"DP TCP UDP Checksum Offload")
@@ -844,6 +870,7 @@
 		CFG(CFG_DP_PEER_FLOW_CTRL) \
 		CFG(CFG_DP_NAPI) \
 		CFG(CFG_DP_TCP_UDP_CKSUM_OFFLOAD) \
+		CFG(CFG_DP_NAN_TCP_UDP_CKSUM_OFFLOAD) \
 		CFG(CFG_DP_DEFRAG_TIMEOUT_CHECK) \
 		CFG(CFG_DP_WBM_RELEASE_RING) \
 		CFG(CFG_DP_TCL_CMD_CREDIT_RING) \

wlan_cfg/wlan_cfg.c

@@ -541,7 +541,8 @@ wlan_cfg_soc_attach(struct cdp_ctrl_objmgr_psoc *psoc)
 	wlan_cfg_ctx->peer_flow_ctrl_enabled =
 			cfg_get(psoc, CFG_DP_PEER_FLOW_CTRL);
 	wlan_cfg_ctx->napi_enabled = cfg_get(psoc, CFG_DP_NAPI);
-	/*Enable checksum offload by default*/
+	wlan_cfg_ctx->nan_tcp_udp_checksumoffload =
+			cfg_get(psoc, CFG_DP_NAN_TCP_UDP_CKSUM_OFFLOAD);
 	wlan_cfg_ctx->tcp_udp_checksumoffload =
 			cfg_get(psoc, CFG_DP_TCP_UDP_CKSUM_OFFLOAD);
 	wlan_cfg_ctx->per_pkt_trace = cfg_get(psoc, CFG_DP_PER_PKT_LOGGING);
@@ -1101,6 +1102,11 @@ int wlan_cfg_get_int_timer_threshold_mon(struct wlan_cfg_dp_soc_ctxt *cfg)
 	return cfg->int_timer_threshold_mon;
 }
 
+int wlan_cfg_get_nan_checksum_offload(struct wlan_cfg_dp_soc_ctxt *cfg)
+{
+	return cfg->nan_tcp_udp_checksumoffload;
+}
+
 int wlan_cfg_get_checksum_offload(struct wlan_cfg_dp_soc_ctxt *cfg)
 {
 	return cfg->tcp_udp_checksumoffload;

wlan_cfg/wlan_cfg.h

@@ -141,6 +141,7 @@ struct wlan_srng_cfg {
  * @peer_flow_ctrl_enabled: Flag indicating if peer flow control is enabled
  * @napi_enabled: enable/disable interrupt mode for reaping tx and rx packets
  * @tcp_udp_checksumoffload: enable/disable checksum offload
+ * @nan_tcp_udp_checksumoffload: enable/disable checksum offload for NAN mode
  * @nss_cfg: nss configuration
  * @rx_defrag_min_timeout: rx defrag minimum timeout
  * @wbm_release_ring: wbm release ring size
@@ -234,6 +235,7 @@ struct wlan_cfg_dp_soc_ctxt {
 	bool rawmode_enabled;
 	bool peer_flow_ctrl_enabled;
 	bool napi_enabled;
+	bool nan_tcp_udp_checksumoffload;
 	bool tcp_udp_checksumoffload;
 	bool defrag_timeout_check;
 	int nss_cfg;
@@ -997,6 +999,14 @@ int wlan_cfg_get_int_timer_threshold_mon(struct wlan_cfg_dp_soc_ctxt *cfg);
  */
 int wlan_cfg_get_checksum_offload(struct wlan_cfg_dp_soc_ctxt *cfg);
 
+/*
+ * wlan_cfg_get_nan_checksum_offload - Get checksum offload enable/disable val
+ * @wlan_cfg_soc_ctx
+ *
+ * Return: Checksum offload enable or disable value for NAN mode
+ */
+int wlan_cfg_get_nan_checksum_offload(struct wlan_cfg_dp_soc_ctxt *cfg);
+
 /*
  * wlan_cfg_tx_ring_size - Get Tx DMA ring size (TCL Data Ring)
  * @wlan_cfg_soc_ctx