cxgb4: add support for high priority filters

T6 has a separate region known as high priority filter region
that allows classifying packets going through ULD path. So,
query firmware for HPFILTER resources and enable the high
priority offload filter support when it is available.

Signed-off-by: Shahjada Abul Husain <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Shahjada Abul Husain

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

@@ -56,6 +56,7 @@
 #include <asm/io.h>
 #include "t4_chip_type.h"
 #include "cxgb4_uld.h"
+#include "t4fw_api.h"
 
 #define CH_WARN(adap, fmt, ...) dev_warn(adap->pdev_dev, fmt, ## __VA_ARGS__)
 extern struct list_head adapter_list;
@@ -68,6 +69,16 @@ extern struct mutex uld_mutex;
 #define ETHTXQ_STOP_THRES \
 	(1 + DIV_ROUND_UP((3 * MAX_SKB_FRAGS) / 2 + (MAX_SKB_FRAGS & 1), 8))
 
+#define FW_PARAM_DEV(param) \
+	(FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | \
+	 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_##param))
+
+#define FW_PARAM_PFVF(param) \
+	(FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | \
+	 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_##param) |  \
+	 FW_PARAMS_PARAM_Y_V(0) | \
+	 FW_PARAMS_PARAM_Z_V(0))
+
 enum {
 	MAX_NPORTS	= 4,     /* max # of ports */
 	SERNUM_LEN	= 24,    /* Serial # length */

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c

@@ -3240,6 +3240,9 @@ static int tid_info_show(struct seq_file *seq, void *v)
 		seq_printf(seq, "SFTID range: %u..%u in use: %u\n",
 			   t->sftid_base, t->sftid_base + t->nsftids - 2,
 			   t->sftids_in_use);
+	if (t->nhpftids)
+		seq_printf(seq, "HPFTID range: %u..%u\n", t->hpftid_base,
+			   t->hpftid_base + t->nhpftids - 1);
 	if (t->ntids)
 		seq_printf(seq, "HW TID usage: %u IP users, %u IPv6 users\n",
 			   t4_read_reg(adap, LE_DB_ACT_CNT_IPV4_A),