netdev - [PATCH net-next 2/3] ibmvnic: Introduce driver limits for ring sizes

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Message-Id: <1538177906-17068-3-git-send-email-tlfalcon@linux.ibm.com>
Date:   Fri, 28 Sep 2018 18:38:25 -0500
From:   Thomas Falcon <tlfalcon@...ux.ibm.com>
To:     netdev@...r.kernel.org
Cc:     nfont@...ux.vnet.ibm.com, Thomas Falcon <tlfalcon@...ux.ibm.com>
Subject: [PATCH net-next 2/3] ibmvnic: Introduce driver limits for ring sizes

Introduce driver-defined maximums for queue ring sizes. Devices
available for IBM vNIC today will likely not allow this amount,
but this should give us some leeway for future devices that may
support larger ring sizes.

Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>
---
 drivers/net/ethernet/ibm/ibmvnic.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 2c1787109f1c..f9a12e5843c4 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -40,6 +40,7 @@
 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
 #define IBMVNIC_BUFFS_PER_POOL	100
 #define IBMVNIC_MAX_QUEUES	16
+#define IBMVNIC_MAX_QUEUE_SZ   4096
 
 #define IBMVNIC_TSO_BUF_SZ	65536
 #define IBMVNIC_TSO_BUFS	64
-- 
2.12.3