scsi: cxgb4i: assign rxqs in round robin mode

Assign rxq to TCP connections in round robin mode to use all available
rxqs.
Signed-off-by: NVarun Prakash <varun@chelsio.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/cxgbi/cxgb4i/cxgb4i.c

@@ -1606,6 +1606,7 @@ static int init_act_open(struct cxgbi_sock *csk)
 	struct neighbour *n = NULL;
 	void *daddr;
 	unsigned int step;
+	unsigned int rxq_idx;
 	unsigned int size, size6;
 	unsigned int linkspeed;
 	unsigned int rcv_winf, snd_winf;
@@ -1684,7 +1685,9 @@ static int init_act_open(struct cxgbi_sock *csk)
 	step = lldi->ntxq / lldi->nchan;
 	csk->txq_idx = cxgb4_port_idx(ndev) * step;
 	step = lldi->nrxq / lldi->nchan;
-	csk->rss_qid = lldi->rxq_ids[cxgb4_port_idx(ndev) * step];
+	rxq_idx = (cxgb4_port_idx(ndev) * step) + (cdev->rxq_idx_cntr % step);
+	cdev->rxq_idx_cntr++;
+	csk->rss_qid = lldi->rxq_ids[rxq_idx];
 	linkspeed = ((struct port_info *)netdev_priv(ndev))->link_cfg.speed;
 	csk->snd_win = cxgb4i_snd_win;
 	csk->rcv_win = cxgb4i_rcv_win;

drivers/scsi/cxgbi/libcxgbi.h

@@ -477,6 +477,7 @@ struct cxgbi_device {
 	unsigned int skb_rx_extra;	/* for msg coalesced mode */
 	unsigned int tx_max_size;
 	unsigned int rx_max_size;
+	unsigned int rxq_idx_cntr;
 	struct cxgbi_ports_map pmap;
 
 	void (*dev_ddp_cleanup)(struct cxgbi_device *);