Merge branch 'liqudio-VF-data-path'

Raghu Vatsavayi says:

====================
liquidio VF data path

Following is V3 patch series that adds support for VF
data path related features. It also has following changes
related to previous comments:
1) Remove unnecessary "void *" casting.
2) Remove inline for functions and let gcc decide.

Please apply patches in following order as some of them
depend on earlier patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.c

@@ -529,6 +529,26 @@ static u64 cn23xx_vf_msix_interrupt_handler(void *dev)
 	return ret;
 }
 
+static u32 cn23xx_update_read_index(struct octeon_instr_queue *iq)
+{
+	u32 pkt_in_done = readl(iq->inst_cnt_reg);
+	u32 last_done;
+	u32 new_idx;
+
+	last_done = pkt_in_done - iq->pkt_in_done;
+	iq->pkt_in_done = pkt_in_done;
+
+	/* Modulo of the new index with the IQ size will give us
+	 * the new index.  The iq->reset_instr_cnt is always zero for
+	 * cn23xx, so no extra adjustments are needed.
+	 */
+	new_idx = (iq->octeon_read_index +
+		   (u32)(last_done & CN23XX_PKT_IN_DONE_CNT_MASK)) %
+		  iq->max_count;
+
+	return new_idx;
+}
+
 static void cn23xx_enable_vf_interrupt(struct octeon_device *oct, u8 intr_flag)
 {
 	struct octeon_cn23xx_vf *cn23xx = (struct octeon_cn23xx_vf *)oct->chip;
@@ -660,6 +680,7 @@ int cn23xx_setup_octeon_vf_device(struct octeon_device *oct)
 	oct->fn_list.msix_interrupt_handler = cn23xx_vf_msix_interrupt_handler;
 
 	oct->fn_list.setup_device_regs = cn23xx_setup_vf_device_regs;
+	oct->fn_list.update_iq_read_idx = cn23xx_update_read_index;
 
 	oct->fn_list.enable_interrupt = cn23xx_enable_vf_interrupt;
 	oct->fn_list.disable_interrupt = cn23xx_disable_vf_interrupt;

drivers/net/ethernet/cavium/liquidio/liquidio_common.h

@@ -212,6 +212,7 @@ static inline void add_sg_size(struct octeon_sg_entry *sg_entry,
 
 #define   OCTNET_CMD_ID_ACTIVE         0x1a
 
+#define   OCTNET_CMD_SET_UC_LIST       0x1b
 #define   OCTNET_CMD_SET_VF_LINKSTATE  0x1c
 #define   OCTNET_CMD_VXLAN_PORT_ADD    0x0
 #define   OCTNET_CMD_VXLAN_PORT_DEL    0x1

drivers/net/ethernet/cavium/liquidio/octeon_device.c

@@ -1221,6 +1221,9 @@ struct octeon_config *octeon_get_conf(struct octeon_device *oct)
 	} else if (OCTEON_CN23XX_PF(oct)) {
 		default_oct_conf = (struct octeon_config *)
 			(CHIP_CONF(oct, cn23xx_pf));
+	} else if (OCTEON_CN23XX_VF(oct)) {
+		default_oct_conf = (struct octeon_config *)
+			(CHIP_CONF(oct, cn23xx_vf));
 	}
 	return default_oct_conf;
 }
@@ -1371,7 +1374,7 @@ void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq)
 	/*write resend. Writing RESEND in SLI_PKTX_CNTS should be enough
 	 *to trigger tx interrupts as well, if they are pending.
 	 */
-	if (oct && OCTEON_CN23XX_PF(oct)) {
+	if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) {
 		if (droq)
 			writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg);
 		/*we race with firmrware here. read and write the IN_DONE_CNTS*/

drivers/net/ethernet/cavium/liquidio/octeon_droq.c

@@ -28,6 +28,7 @@
 #include "cn66xx_regs.h"
 #include "cn66xx_device.h"
 #include "cn23xx_pf_device.h"
+#include "cn23xx_vf_device.h"
 
 struct niclist {
 	struct list_head list;
@@ -259,6 +260,11 @@ int octeon_init_droq(struct octeon_device *oct,
 	} else if (OCTEON_CN23XX_PF(oct)) {
 		struct octeon_config *conf23 = CHIP_CONF(oct, cn23xx_pf);
 
+		c_pkts_per_intr = (u32)CFG_GET_OQ_PKTS_PER_INTR(conf23);
+		c_refill_threshold = (u32)CFG_GET_OQ_REFILL_THRESHOLD(conf23);
+	} else if (OCTEON_CN23XX_VF(oct)) {
+		struct octeon_config *conf23 = CHIP_CONF(oct, cn23xx_vf);
+
 		c_pkts_per_intr = (u32)CFG_GET_OQ_PKTS_PER_INTR(conf23);
 		c_refill_threshold = (u32)CFG_GET_OQ_REFILL_THRESHOLD(conf23);
 	} else {
@@ -889,6 +895,10 @@ octeon_process_droq_poll_cmd(struct octeon_device *oct, u32 q_no, int cmd,
 			lio_enable_irq(oct->droq[q_no], oct->instr_queue[q_no]);
 		}
 		break;
+
+		case OCTEON_CN23XX_VF_VID:
+			lio_enable_irq(oct->droq[q_no], oct->instr_queue[q_no]);
+		break;
 		}
 		return 0;
 	}

drivers/net/ethernet/cavium/liquidio/octeon_network.h

@@ -123,6 +123,7 @@ struct lio {
 	/* work queue for  link status */
 	struct cavium_wq	link_status_wq;
 
+	int netdev_uc_count;
 };
 
 #define LIO_SIZE         (sizeof(struct lio))

drivers/net/ethernet/cavium/liquidio/request_manager.c

@@ -394,7 +394,7 @@ lio_process_iq_request_list(struct octeon_device *oct,
 		case REQTYPE_SOFT_COMMAND:
 			sc = buf;
 
-			if (OCTEON_CN23XX_PF(oct))
+			if (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))
 				irh = (struct octeon_instr_irh *)
 					&sc->cmd.cmd3.irh;
 			else
@@ -607,7 +607,7 @@ octeon_prepare_soft_command(struct octeon_device *oct,
 
 	oct_cfg = octeon_get_conf(oct);
 
-	if (OCTEON_CN23XX_PF(oct)) {
+	if (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct)) {
 		ih3 = (struct octeon_instr_ih3 *)&sc->cmd.cmd3.ih3;
 
 		ih3->pkind = oct->instr_queue[sc->iq_no]->txpciq.s.pkind;
@@ -700,7 +700,7 @@ int octeon_send_soft_command(struct octeon_device *oct,
 	struct octeon_instr_irh *irh;
 	u32 len;
 
-	if (OCTEON_CN23XX_PF(oct)) {
+	if (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct)) {
 		ih3 =  (struct octeon_instr_ih3 *)&sc->cmd.cmd3.ih3;
 		if (ih3->dlengsz) {
 			WARN_ON(!sc->dmadptr);

drivers/net/ethernet/cavium/liquidio/response_manager.c

@@ -84,7 +84,8 @@ int lio_process_ordered_list(struct octeon_device *octeon_dev,
 
 		sc = (struct octeon_soft_command *)ordered_sc_list->
 		    head.next;
-		if (OCTEON_CN23XX_PF(octeon_dev)) {
+		if (OCTEON_CN23XX_PF(octeon_dev) ||
+		    OCTEON_CN23XX_VF(octeon_dev)) {
 			rdp = (struct octeon_instr_rdp *)&sc->cmd.cmd3.rdp;
 			rptr = sc->cmd.cmd3.rptr;
 		} else {