backports: add igb driver

index f15116c..ce6b778 100644
@@ -1,6 +1,17 @@
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
+#ifndef __BACKPORT_LINUX_U64_STATS_SYNC_H
+#define __BACKPORT_LINUX_U64_STATS_SYNC_H
+
 #include_next <linux/u64_stats_sync.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+# define u64_stats_init(syncp)	seqcount_init(syncp.seq)
 #else
+# define u64_stats_init(syncp)	do { } while (0)
+#endif
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
 #ifndef _LINUX_U64_STATS_SYNC_H
 #define _LINUX_U64_STATS_SYNC_H
 

@@ -141,4 +152,5 @@ static inline bool u64_stats_fetch_retry_bh(const struct u64_stats_sync *syncp,
 }
 
 #endif /* _LINUX_U64_STATS_SYNC_H */
-#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */
+#endif /* __BACKPORT_LINUX_U64_STATS_SYNC_H */

index 3a1815a..f36384e 100644
@@ -178,4 +178,38 @@ bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
 	.subvendor = (subvend), .subdevice = (subdev)
 #endif /* PCI_DEVICE_SUB */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
+/* Taken from drivers/pci/pci.h */
+struct pci_sriov {
+	int pos;		/* capability position */
+	int nres;		/* number of resources */
+	u32 cap;		/* SR-IOV Capabilities */
+	u16 ctrl;		/* SR-IOV Control */
+	u16 total_VFs;		/* total VFs associated with the PF */
+	u16 initial_VFs;	/* initial VFs associated with the PF */
+	u16 num_VFs;		/* number of VFs available */
+	u16 offset;		/* first VF Routing ID offset */
+	u16 stride;		/* following VF stride */
+	u32 pgsz;		/* page size for BAR alignment */
+	u8 link;		/* Function Dependency Link */
+	u16 driver_max_VFs;	/* max num VFs driver supports */
+	struct pci_dev *dev;	/* lowest numbered PF */
+	struct pci_dev *self;	/* this PF */
+	struct mutex lock;	/* lock for VF bus */
+	struct work_struct mtask; /* VF Migration task */
+	u8 __iomem *mstate;	/* VF Migration State Array */
+};
+
+#define pci_vfs_assigned LINUX_BACKPORT(pci_vfs_assigned)
+#ifdef CONFIG_PCI_IOV
+int pci_vfs_assigned(struct pci_dev *dev);
+#else
+static inline int pci_vfs_assigned(struct pci_dev *dev)
+{
+	return 0;
+}
+#endif
+
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) */
+
 #endif /* _BACKPORT_LINUX_PCI_H */

index 5cfa742..b52c4a5 100644
@@ -125,4 +125,12 @@
 #define PCI_PM_CAP_PME_SHIFT	11
 #endif
 
+#ifndef PCI_SRIOV_VF_DID
+#define PCI_SRIOV_VF_DID	0x1a	/* VF Device ID */
+#endif
+
+#ifndef PCI_SRIOV_CTRL_VFE
+#define PCI_SRIOV_CTRL_VFE	0x01	/* VF Enable */
+#endif
+
 #endif /* __BACKPORT_UAPI_PCI_REGS_H */

56 lines not on this page · raw message

index 43d33ca..7d04b54 100644
@@ -224,4 +224,13 @@ 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(3,9,0)
+#ifndef NETDEV_FRAG_PAGE_MAX_ORDER
+#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768)
+#endif
+#ifndef NETDEV_FRAG_PAGE_MAX_SIZE
+#define NETDEV_FRAG_PAGE_MAX_SIZE  (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER)
+#endif
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) */
+
 #endif /* __BACKPORT_SKBUFF_H */

index f36384e..5201f1b 100644
@@ -178,6 +178,11 @@ bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
 	.subvendor = (subvend), .subdevice = (subdev)
 #endif /* PCI_DEVICE_SUB */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0)
+#define pci_sriov_set_totalvfs LINUX_BACKPORT(pci_sriov_set_totalvfs)
+int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) */
+
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
 /* Taken from drivers/pci/pci.h */
 struct pci_sriov {

@@ -211,5 +216,4 @@ static inline int pci_vfs_assigned(struct pci_dev *dev)
 #endif
 
 #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) */
-
 #endif /* _BACKPORT_LINUX_PCI_H */

index 6741989..d39e8d6 100644
@@ -19,6 +19,8 @@
 #include <linux/random.h>
 #include <linux/of.h>
 #include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/pci_regs.h>
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,8))
 void netdev_set_default_ethtool_ops(struct net_device *dev,

@@ -515,3 +517,35 @@ int of_property_read_u8_array(const struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(of_property_read_u8_array);
 #endif /* CONFIG_OF */
+
+#ifdef CONFIG_PCI_IOV
+/**
+ * pci_sriov_set_totalvfs -- reduce the TotalVFs available
+ * @dev: the PCI PF device
+ * @numvfs: number that should be used for TotalVFs supported
+ *
+ * Should be called from PF driver's probe routine with
+ * device's mutex held.
+ *
+ * Returns 0 if PF is an SRIOV-capable device and
+ * value of numvfs valid. If not a PF return -ENOSYS;
+ * if numvfs is invalid return -EINVAL;
+ * if VFs already enabled, return -EBUSY.
+ */
+int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
+{
+	if (!dev->is_physfn)
+		return -ENOSYS;
+	if (numvfs > dev->sriov->total_VFs)
+		return -EINVAL;
+
+	/* Shouldn't change if VFs already enabled */
+	if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE)
+		return -EBUSY;
+	else
+		dev->sriov->driver_max_VFs = numvfs;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pci_sriov_set_totalvfs);
+#endif /* CONFIG_PCI_IOV */

new file mode 100644
index 0000000..2a38121
@@ -0,0 +1,35 @@
+#ifndef __BACKPORT_LINUX_MDIO_H
+#define __BACKPORT_LINUX_MDIO_H
+#include_next <linux/mdio.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
+/**
+ * mmd_eee_adv_to_ethtool_adv_t
+ * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
+ *
+ * A small helper function that translates the MMD EEE Advertisment (7.60)
+ * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
+ * settings.
+ */
+static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
+{
+	u32 adv = 0;
+
+	if (eee_adv & MDIO_EEE_100TX)
+		adv |= ADVERTISED_100baseT_Full;
+	if (eee_adv & MDIO_EEE_1000T)
+		adv |= ADVERTISED_1000baseT_Full;
+	if (eee_adv & MDIO_EEE_10GT)
+		adv |= ADVERTISED_10000baseT_Full;
+	if (eee_adv & MDIO_EEE_1000KX)
+		adv |= ADVERTISED_1000baseKX_Full;
+	if (eee_adv & MDIO_EEE_10GKX4)
+		adv |= ADVERTISED_10000baseKX4_Full;
+	if (eee_adv & MDIO_EEE_10GKR)
+		adv |= ADVERTISED_10000baseKR_Full;
+
+	return adv;
+}
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */
+
+#endif /* __BACKPORT_LINUX_MDIO_H */

new file mode 100644
index 0000000..f64e705
@@ -0,0 +1,9 @@
+#ifndef __BACKPORT_PTP_CLOCK_KERNEL_H
+#define __BACKPORT_PTP_CLOCK_KERNEL_H
+#include_next <linux/ptp_clock_kernel.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
+#define ptp_clock_register(info,parent) ptp_clock_register(info)
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */
+
+#endif /* __BACKPORT_PTP_CLOCK_KERNEL_H */

index 647fbf6..4f13cb9 100644
@@ -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 */

new file mode 100644
index 0000000..2962290
@@ -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 */

index 2a38121..838958a 100644
@@ -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 */

52 lines not on this page · raw message

index 4f13cb9..38882de 100644
@@ -42,6 +42,54 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
 }
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
+/* EEPROM Standards for plug in modules */
+#define ETH_MODULE_SFF_8079		0x1
+#define ETH_MODULE_SFF_8079_LEN		256
+#define ETH_MODULE_SFF_8472		0x2
+#define ETH_MODULE_SFF_8472_LEN		512
+
+/**
+ * struct ethtool_ts_info - holds a device's timestamping and PHC association
+ * @cmd: command number = %ETHTOOL_GET_TS_INFO
+ * @so_timestamping: bit mask of the sum of the supported SO_TIMESTAMPING flags
+ * @phc_index: device index of the associated PHC, or -1 if there is none
+ * @tx_types: bit mask of the supported hwtstamp_tx_types enumeration values
+ * @rx_filters: bit mask of the supported hwtstamp_rx_filters enumeration values
+ *
+ * The bits in the 'tx_types' and 'rx_filters' fields correspond to
+ * the 'hwtstamp_tx_types' and 'hwtstamp_rx_filters' enumeration values,
+ * respectively.  For example, if the device supports HWTSTAMP_TX_ON,
+ * then (1 << HWTSTAMP_TX_ON) in 'tx_types' will be set.
+ */
+struct ethtool_ts_info {
+	__u32	cmd;
+	__u32	so_timestamping;
+	__s32	phc_index;
+	__u32	tx_types;
+	__u32	tx_reserved[3];
+	__u32	rx_filters;
+	__u32	rx_reserved[3];
+};
+
+/**
+ * struct ethtool_modinfo - plugin module eeprom information
+ * @cmd: %ETHTOOL_GMODULEINFO
+ * @type: Standard the module information conforms to %ETH_MODULE_SFF_xxxx
+ * @eeprom_len: Length of the eeprom
+ *
+ * This structure is used to return the information to
+ * properly size memory for a subsequent call to %ETHTOOL_GMODULEEEPROM.
+ * The type code indicates the eeprom data format
+ */
+struct ethtool_modinfo {
+	__u32   cmd;
+	__u32   type;
+	__u32   eeprom_len;
+	__u32   reserved[8];
+};
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) */
+
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
 /**
  * struct ethtool_eee - Energy Efficient Ethernet information

index f64e705..90def75 100644
@@ -2,6 +2,35 @@
 #define __BACKPORT_PTP_CLOCK_KERNEL_H
 #include_next <linux/ptp_clock_kernel.h>
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
+#include <linux/posix-clock.h>
+
+#define PTP_MAX_TIMESTAMPS 128
+#define PTP_BUF_TIMESTAMPS 30
+
+struct timestamp_event_queue {
+	struct ptp_extts_event buf[PTP_MAX_TIMESTAMPS];
+	int head;
+	int tail;
+	spinlock_t lock;
+};
+
+struct ptp_clock {
+	struct posix_clock clock;
+	struct device *dev;
+	struct ptp_clock_info *info;
+	dev_t devid;
+	int index; /* index into clocks.map */
+	struct pps_device *pps_source;
+	struct timestamp_event_queue tsevq; /* simple fifo for time stamps */
+	struct mutex tsevq_mux; /* one process at a time reading the fifo */
+	wait_queue_head_t tsev_wq;
+	int defunct; /* tells readers to go away when clock is being removed */
+};
+
+extern int ptp_clock_index(struct ptp_clock *ptp);
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) */
+
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
 #define ptp_clock_register(info,parent) ptp_clock_register(info)
 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */

index 95f52b9..0a4aaba 100644
@@ -12,6 +12,9 @@
 #include <linux/highuid.h>
 #include <linux/ktime.h>
 #include <linux/hrtimer.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)
+#include <linux/ptp_clock_kernel.h>
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) */
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
 #include <linux/device.h>

@@ -64,3 +67,11 @@ int overflowgid = DEFAULT_OVERFLOWGID;
 EXPORT_SYMBOL_GPL(overflowuid);
 EXPORT_SYMBOL_GPL(overflowgid);
 #endif
+
+#ifdef CONFIG_PTP_1588_CLOCK
+int ptp_clock_index(struct ptp_clock *ptp)
+{
+	return ptp->index;
+}
+EXPORT_SYMBOL(ptp_clock_index);
+#endif /* CONFIG_PTP_1588_CLOCK */

index 8f85b83..f23d2b8 100644
@@ -33,4 +33,8 @@
 #define IFF_LIVE_ADDR_CHANGE 0x100000
 #endif
 
+#ifndef IFF_SUPP_NOFCS
+#define IFF_SUPP_NOFCS	0x80000		/* device supports sending custom FCS */
+#endif
+
 #endif	/* _BACKPORT_LINUX_IF_H */

index f23d2b8..a072579 100644
@@ -37,4 +37,8 @@
 #define IFF_SUPP_NOFCS	0x80000		/* device supports sending custom FCS */
 #endif
 
+#ifndef IFF_UNICAST_FLT
+#define IFF_UNICAST_FLT	0x20000		/* Supports unicast filtering	*/
+#endif
+
 #endif	/* _BACKPORT_LINUX_IF_H */

index 5201f1b..ae8dafd 100644
@@ -178,6 +178,14 @@ bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
 	.subvendor = (subvend), .subdevice = (subdev)
 #endif /* PCI_DEVICE_SUB */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)
+enum backport_pci_dev_flags {
+	/* Provide indication device is assigned by a Virtual Machine Manager */
+	PCI_DEV_FLAGS_ASSIGNED = (__force pci_dev_flags_t) 4,
+};
+#define pci_dev_flags LINUX_BACKPORT(pci_dev_flags);
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) */
+
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0)
 #define pci_sriov_set_totalvfs LINUX_BACKPORT(pci_sriov_set_totalvfs)
 int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);

index c1b2753..2207e7e 100644
@@ -224,6 +224,25 @@ 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(3,2,0)
+static inline void skb_frag_size_sub(skb_frag_t *frag, int delta)
+{
+	frag->size -= delta;
+}
+
+/**
+ * skb_frag_address - gets the address of the data contained in a paged fragment
+ * @frag: the paged fragment buffer
+ *
+ * Returns the address of the data within @frag. The page must already
+ * be mapped.
+ */
+static inline void *skb_frag_address(const skb_frag_t *frag)
+{
+	return page_address(skb_frag_page(frag)) + frag->page_offset;
+}
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) */
+
 #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