From: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Date: Sun, 5 Mar 2017 18:18:42 +0000 (-0600)
Subject: ibmvnic: Allocate number of rx/tx buffers agreed on by firmware
X-Git-Tag: v4.14-rc1~1290^2~58
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=068d9f90a6978c3e3a662d9e85204a7d6be240d2;p=platform%2Fkernel%2Flinux-rpi3.git

ibmvnic: Allocate number of rx/tx buffers agreed on by firmware

The amount of TX/RX buffers that the vNIC driver currently allocates
is different from the amount agreed upon in negotiation with firmware.
Correct that by allocating the requested number of buffers confirmed
by firmware.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 0e87b83..5f11b4d 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -404,7 +404,7 @@ static int ibmvnic_open(struct net_device *netdev)
 	send_map_query(adapter);
 	for (i = 0; i < rxadd_subcrqs; i++) {
 		init_rx_pool(adapter, &adapter->rx_pool[i],
-			     IBMVNIC_BUFFS_PER_POOL, i,
+			     adapter->req_rx_add_entries_per_subcrq, i,
 			     be64_to_cpu(size_array[i]), 1);
 		if (alloc_rx_pool(adapter, &adapter->rx_pool[i])) {
 			dev_err(dev, "Couldn't alloc rx pool\n");
@@ -419,23 +419,23 @@ static int ibmvnic_open(struct net_device *netdev)
 	for (i = 0; i < tx_subcrqs; i++) {
 		tx_pool = &adapter->tx_pool[i];
 		tx_pool->tx_buff =
-		    kcalloc(adapter->max_tx_entries_per_subcrq,
+		    kcalloc(adapter->req_tx_entries_per_subcrq,
 			    sizeof(struct ibmvnic_tx_buff), GFP_KERNEL);
 		if (!tx_pool->tx_buff)
 			goto tx_pool_alloc_failed;
 
 		if (alloc_long_term_buff(adapter, &tx_pool->long_term_buff,
-					 adapter->max_tx_entries_per_subcrq *
+					 adapter->req_tx_entries_per_subcrq *
 					 adapter->req_mtu))
 			goto tx_ltb_alloc_failed;
 
 		tx_pool->free_map =
-		    kcalloc(adapter->max_tx_entries_per_subcrq,
+		    kcalloc(adapter->req_tx_entries_per_subcrq,
 			    sizeof(int), GFP_KERNEL);
 		if (!tx_pool->free_map)
 			goto tx_fm_alloc_failed;
 
-		for (j = 0; j < adapter->max_tx_entries_per_subcrq; j++)
+		for (j = 0; j < adapter->req_tx_entries_per_subcrq; j++)
 			tx_pool->free_map[j] = j;
 
 		tx_pool->consumer_index = 0;
@@ -746,7 +746,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	tx_pool->consumer_index =
 	    (tx_pool->consumer_index + 1) %
-		adapter->max_tx_entries_per_subcrq;
+		adapter->req_tx_entries_per_subcrq;
 
 	tx_buff = &tx_pool->tx_buff[index];
 	tx_buff->skb = skb;
@@ -819,7 +819,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 		if (tx_pool->consumer_index == 0)
 			tx_pool->consumer_index =
-				adapter->max_tx_entries_per_subcrq - 1;
+				adapter->req_tx_entries_per_subcrq - 1;
 		else
 			tx_pool->consumer_index--;
 
@@ -1387,7 +1387,7 @@ restart_loop:
 						     producer_index] = index;
 			adapter->tx_pool[pool].producer_index =
 			    (adapter->tx_pool[pool].producer_index + 1) %
-			    adapter->max_tx_entries_per_subcrq;
+			    adapter->req_tx_entries_per_subcrq;
 		}
 		/* remove tx_comp scrq*/
 		next->tx_comp.first = 0;