liquidio VF rx data and ctl path

Adds support for VF receive data control path.
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -1374,7 +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/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 {