| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20070731202148.15794.99084.stgit@localhost.localdomain>
Date: Tue, 31 Jul 2007 13:21:48 -0700
From: Auke Kok <auke-jan.h.kok@...el.com>
To: netdev@...r.kernel.org
Cc: jgarzik@...ox.com, davem@...emloft.net
Subject: [PATCH] [NET] ethtool: Add support for multiple queues
Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
---
include/linux/ethtool.h | 23 +++++++++++++++++++++++
net/core/ethtool.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index ab9d688..aefd580 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -196,6 +196,23 @@ struct ethtool_ringparam {
__u32 tx_pending;
};
+/* for configuring RX/TX queue count */
+struct ethtool_queueparam {
+ __u32 cmd; /* ETHTOOL_{G,S}QUEUEPARAM */
+
+ /* Read only attributes. These indicate the maximum number
+ * of RX/TX queues the driver will allow the user to set.
+ */
+ __u32 rx_max;
+ __u32 tx_max;
+
+ /* Values changeable by the user. The valid values are
+ * in the range 1 to the "*_max" counterpart above.
+ */
+ __u32 rx;
+ __u32 tx;
+};
+
/* for configuring link flow control parameters */
struct ethtool_pauseparam {
__u32 cmd; /* ETHTOOL_{G,S}PAUSEPARAM */
@@ -295,6 +312,8 @@ int ethtool_op_set_lro(struct net_device *dev, u32 data);
* set_coalesce: Set interrupt coalescing parameters
* get_ringparam: Report ring sizes
* set_ringparam: Set ring sizes
+ * get_queueparam: Report ring sizes
+ * set_queueparam: Set ring sizes
* get_pauseparam: Report pause parameters
* set_pauseparam: Set pause paramters
* get_rx_csum: Report whether receive checksums are turned on or off
@@ -356,6 +375,8 @@ struct ethtool_ops {
int (*set_coalesce)(struct net_device *, struct ethtool_coalesce *);
void (*get_ringparam)(struct net_device *, struct ethtool_ringparam *);
int (*set_ringparam)(struct net_device *, struct ethtool_ringparam *);
+ void (*get_queueparam)(struct net_device *, struct ethtool_queueparam *);
+ int (*set_queueparam)(struct net_device *, struct ethtool_queueparam *);
void (*get_pauseparam)(struct net_device *, struct ethtool_pauseparam*);
int (*set_pauseparam)(struct net_device *, struct ethtool_pauseparam*);
u32 (*get_rx_csum)(struct net_device *);
@@ -422,6 +443,8 @@ struct ethtool_ops {
#define ETHTOOL_SGSO 0x00000024 /* Set GSO enable (ethtool_value) */
#define ETHTOOL_GLRO 0x00000025 /* Get LRO enable (ethtool_value) */
#define ETHTOOL_SLRO 0x00000026 /* Set LRO enable (ethtool_value) */
+#define ETHTOOL_GQUEUEPARAM 0x00000027 /* Get queue parameters */
+#define ETHTOOL_SQUEUEPARAM 0x00000028 /* Set queue parameters. */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 23ccaa1..f1a1234 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -443,6 +443,33 @@ static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
return dev->ethtool_ops->set_ringparam(dev, &ringparam);
}
+static int ethtool_get_queueparam(struct net_device *dev, void __user *useraddr)
+{
+ struct ethtool_queueparam queueparam = { ETHTOOL_GQUEUEPARAM };
+
+ if (!dev->ethtool_ops->get_queueparam)
+ return -EOPNOTSUPP;
+
+ dev->ethtool_ops->get_queueparam(dev, &queueparam);
+
+ if (copy_to_user(useraddr, &queueparam, sizeof(queueparam)))
+ return -EFAULT;
+ return 0;
+}
+
+static int ethtool_set_queueparam(struct net_device *dev, void __user *useraddr)
+{
+ struct ethtool_queueparam queueparam;
+
+ if (!dev->ethtool_ops->set_queueparam)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&queueparam, useraddr, sizeof(queueparam)))
+ return -EFAULT;
+
+ return dev->ethtool_ops->set_queueparam(dev, &queueparam);
+}
+
static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
{
struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
@@ -875,6 +902,7 @@ int dev_ethtool(struct ifreq *ifr)
case ETHTOOL_GMSGLVL:
case ETHTOOL_GCOALESCE:
case ETHTOOL_GRINGPARAM:
+ case ETHTOOL_GQUEUEPARAM:
case ETHTOOL_GPAUSEPARAM:
case ETHTOOL_GRXCSUM:
case ETHTOOL_GTXCSUM:
@@ -946,6 +974,12 @@ int dev_ethtool(struct ifreq *ifr)
case ETHTOOL_SRINGPARAM:
rc = ethtool_set_ringparam(dev, useraddr);
break;
+ case ETHTOOL_GQUEUEPARAM:
+ rc = ethtool_get_queueparam(dev, useraddr);
+ break;
+ case ETHTOOL_SQUEUEPARAM:
+ rc = ethtool_set_queueparam(dev, useraddr);
+ break;
case ETHTOOL_GPAUSEPARAM:
rc = ethtool_get_pauseparam(dev, useraddr);
break;
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists