- add EEE defines
- add struct ethtool_eee
- backport __skb_alloc_page and __skb_alloc_pages
- add patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
Signed-off-by: Stefan Assmann <sassmann@xxxxxxxxx>
---
backport/backport-include/linux/ethtool.h | 31 +++++++++++++++
backport/backport-include/linux/gfp.h | 10 +++++
backport/backport-include/linux/mdio.h | 23 ++++++++++-
backport/backport-include/linux/skbuff.h | 46 ++++++++++++++++++++++
.../network/82-ethernet/0006-igb_eee.patch | 31 +++++++++++++++
5 files changed, 140 insertions(+), 1 deletion(-)
create mode 100644 backport/backport-include/linux/gfp.h
create mode 100644 patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
diff --git a/backport/backport-include/linux/ethtool.h b/backport/backport-include/linux/ethtool.h
index 647fbf6..4f13cb9 100644
--- a/backport/backport-include/linux/ethtool.h
+++ b/backport/backport-include/linux/ethtool.h
@@ -42,4 +42,35 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
}
#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
+/**
+ * struct ethtool_eee - Energy Efficient Ethernet information
+ * @cmd: ETHTOOL_{G,S}EEE
+ * @supported: Mask of %SUPPORTED_* flags for the speed/duplex combinations
+ * for which there is EEE support.
+ * @advertised: Mask of %ADVERTISED_* flags for the speed/duplex combinations
+ * advertised as eee capable.
+ * @lp_advertised: Mask of %ADVERTISED_* flags for the speed/duplex
+ * combinations advertised by the link partner as eee capable.
+ * @eee_active: Result of the eee auto negotiation.
+ * @eee_enabled: EEE configured mode (enabled/disabled).
+ * @tx_lpi_enabled: Whether the interface should assert its tx lpi, given
+ * that eee was negotiated.
+ * @tx_lpi_timer: Time in microseconds the interface delays prior to asserting
+ * its tx lpi (after reaching 'idle' state). Effective only when eee
+ * was negotiated and tx_lpi_enabled was set.
+ */
+struct ethtool_eee {
+ __u32 cmd;
+ __u32 supported;
+ __u32 advertised;
+ __u32 lp_advertised;
+ __u32 eee_active;
+ __u32 eee_enabled;
+ __u32 tx_lpi_enabled;
+ __u32 tx_lpi_timer;
+ __u32 reserved[2];
+};
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */
+
#endif /* __BACKPORT_LINUX_ETHTOOL_H */
diff --git a/backport/backport-include/linux/gfp.h b/backport/backport-include/linux/gfp.h
new file mode 100644
index 0000000..2962290
--- /dev/null
+++ b/backport/backport-include/linux/gfp.h
@@ -0,0 +1,10 @@
+#ifndef __BACKPORT_LINUX_GFP_H
+#define __BACKPORT_LINUX_GFP_H
+#include_next <linux/gfp.h>
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0))
+#define ___GFP_MEMALLOC 0x2000u
+#define __GFP_MEMALLOC ((__force gfp_t)___GFP_MEMALLOC)/* Allow access to emergency reserves */
+#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) */
+
+#endif /* __BACKPORT_LINUX_GFP_H */
diff --git a/backport/backport-include/linux/mdio.h b/backport/backport-include/linux/mdio.h
index 2a38121..838958a 100644
--- a/backport/backport-include/linux/mdio.h
+++ b/backport/backport-include/linux/mdio.h
@@ -2,6 +2,28 @@
#define __BACKPORT_LINUX_MDIO_H
#include_next <linux/mdio.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
+/* EEE Supported/Advertisement/LP Advertisement registers.
+ *
+ * EEE capability Register (3.20), Advertisement (7.60) and
+ * Link partner ability (7.61) registers have and can use the same identical
+ * bit masks.
+ */
+#define MDIO_AN_EEE_ADV_100TX 0x0002 /* Advertise 100TX EEE cap */
+#define MDIO_AN_EEE_ADV_1000T 0x0004 /* Advertise 1000T EEE cap */
+/* Note: the two defines above can be potentially used by the user-land
+ * and cannot remove them now.
+ * So, we define the new generic MDIO_EEE_100TX and MDIO_EEE_1000T macros
+ * using the previous ones (that can be considered obsolete).
+ */
+#define MDIO_EEE_100TX MDIO_AN_EEE_ADV_100TX /* 100TX EEE cap */
+#define MDIO_EEE_1000T MDIO_AN_EEE_ADV_1000T /* 1000T EEE cap */
+#define MDIO_EEE_10GT 0x0008 /* 10GT EEE cap */
+#define MDIO_EEE_1000KX 0x0010 /* 1000KX EEE cap */
+#define MDIO_EEE_10GKX4 0x0020 /* 10G KX4 EEE cap */
+#define MDIO_EEE_10GKR 0x0040 /* 10G KR EEE cap */
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
/**
* mmd_eee_adv_to_ethtool_adv_t
@@ -31,5 +53,4 @@ static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
return adv;
}
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */
-
#endif /* __BACKPORT_LINUX_MDIO_H */
diff --git a/backport/backport-include/linux/skbuff.h b/backport/backport-include/linux/skbuff.h
index 7d04b54..c1b2753 100644
--- a/backport/backport-include/linux/skbuff.h
+++ b/backport/backport-include/linux/skbuff.h
@@ -224,6 +224,52 @@ static inline void skb_queue_splice_tail(const struct sk_buff_head *list,
skb = skb->next)
#endif /* < 2.6.28 */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
+/**
+ * __skb_alloc_pages - allocate pages for ps-rx on a skb and preserve pfmemalloc data
+ * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX
+ * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used
+ * @order: size of the allocation
+ *
+ * Allocate a new page.
+ *
+ * %NULL is returned if there is no free memory.
+*/
+static inline struct page *__skb_alloc_pages(gfp_t gfp_mask,
+ struct sk_buff *skb,
+ unsigned int order)
+{
+ struct page *page;
+
+ gfp_mask |= __GFP_COLD;
+#if 0
+ if (!(gfp_mask & __GFP_NOMEMALLOC))
+ gfp_mask |= __GFP_MEMALLOC;
+#endif
+ page = alloc_pages_node(NUMA_NO_NODE, gfp_mask, order);
+#if 0
+ if (skb && page && page->pfmemalloc)
+ skb->pfmemalloc = true;
+#endif
+ return page;
+}
+
+/**
+ * __skb_alloc_page - allocate a page for ps-rx for a given skb and preserve pfmemalloc data
+ * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX
+ * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used
+ *
+ * Allocate a new page.
+ *
+ * %NULL is returned if there is no free memory.
+ */
+static inline struct page *__skb_alloc_page(gfp_t gfp_mask,
+ struct sk_buff *skb)
+{
+ return __skb_alloc_pages(gfp_mask, skb, 0);
+}
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)
#ifndef NETDEV_FRAG_PAGE_MAX_ORDER
#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768)
diff --git a/patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch b/patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
new file mode 100644
index 0000000..f9927bf
--- /dev/null
+++ b/patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
@@ -0,0 +1,31 @@
+diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
+index 9b15820..9767f11 100644
+--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
++++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
+@@ -2585,6 +2585,7 @@ static int igb_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+ return ret;
+ }
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)
+ static int igb_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
+ {
+ struct igb_adapter *adapter = netdev_priv(netdev);
+@@ -2713,6 +2714,7 @@ static int igb_set_eee(struct net_device *netdev,
+
+ return 0;
+ }
++#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0) */
+
+ static int igb_get_module_info(struct net_device *netdev,
+ struct ethtool_modinfo *modinfo)
+@@ -3001,8 +3003,10 @@ static const struct ethtool_ops igb_ethtool_ops = {
+ .get_ts_info = igb_get_ts_info,
+ .get_rxnfc = igb_get_rxnfc,
+ .set_rxnfc = igb_set_rxnfc,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)
+ .get_eee = igb_get_eee,
+ .set_eee = igb_set_eee,
++#endif
+ .get_module_info = igb_get_module_info,
+ .get_module_eeprom = igb_get_module_eeprom,
+ .get_rxfh_indir_size = igb_get_rxfh_indir_size,
--
1.8.4.2
--
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