diff options
Diffstat (limited to 'kernel/linux/kni/ethtool/ixgbe/kcompat.c')
| -rw-r--r-- | kernel/linux/kni/ethtool/ixgbe/kcompat.c | 1231 |
1 files changed, 1231 insertions, 0 deletions
diff --git a/kernel/linux/kni/ethtool/ixgbe/kcompat.c b/kernel/linux/kni/ethtool/ixgbe/kcompat.c new file mode 100644 index 00000000..6c994576 --- /dev/null +++ b/kernel/linux/kni/ethtool/ixgbe/kcompat.c @@ -0,0 +1,1231 @@ +// SPDX-License-Identifier: GPL-2.0 +/******************************************************************************* + + Intel 10 Gigabit PCI Express Linux driver + Copyright(c) 1999 - 2012 Intel Corporation. + + Contact Information: + e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "ixgbe.h" +#include "kcompat.h" + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) ) +/* From lib/vsprintf.c */ +#include <asm/div64.h> + +static int skip_atoi(const char **s) +{ + int i=0; + + while (isdigit(**s)) + i = i*10 + *((*s)++) - '0'; + return i; +} + +#define _kc_ZEROPAD 1 /* pad with zero */ +#define _kc_SIGN 2 /* unsigned/signed long */ +#define _kc_PLUS 4 /* show plus */ +#define _kc_SPACE 8 /* space if plus */ +#define _kc_LEFT 16 /* left justified */ +#define _kc_SPECIAL 32 /* 0x */ +#define _kc_LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */ + +static char * number(char * buf, char * end, long long num, int base, int size, int precision, int type) +{ + char c,sign,tmp[66]; + const char *digits; + const char small_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz"; + const char large_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + int i; + + digits = (type & _kc_LARGE) ? large_digits : small_digits; + if (type & _kc_LEFT) + type &= ~_kc_ZEROPAD; + if (base < 2 || base > 36) + return 0; + c = (type & _kc_ZEROPAD) ? '0' : ' '; + sign = 0; + if (type & _kc_SIGN) { + if (num < 0) { + sign = '-'; + num = -num; + size--; + } else if (type & _kc_PLUS) { + sign = '+'; + size--; + } else if (type & _kc_SPACE) { + sign = ' '; + size--; + } + } + if (type & _kc_SPECIAL) { + if (base == 16) + size -= 2; + else if (base == 8) + size--; + } + i = 0; + if (num == 0) + tmp[i++]='0'; + else while (num != 0) + tmp[i++] = digits[do_div(num,base)]; + if (i > precision) + precision = i; + size -= precision; + if (!(type&(_kc_ZEROPAD+_kc_LEFT))) { + while(size-->0) { + if (buf <= end) + *buf = ' '; + ++buf; + } + } + if (sign) { + if (buf <= end) + *buf = sign; + ++buf; + } + if (type & _kc_SPECIAL) { + if (base==8) { + if (buf <= end) + *buf = '0'; + ++buf; + } else if (base==16) { + if (buf <= end) + *buf = '0'; + ++buf; + if (buf <= end) + *buf = digits[33]; + ++buf; + } + } + if (!(type & _kc_LEFT)) { + while (size-- > 0) { + if (buf <= end) + *buf = c; + ++buf; + } + } + while (i < precision--) { + if (buf <= end) + *buf = '0'; + ++buf; + } + while (i-- > 0) { + if (buf <= end) + *buf = tmp[i]; + ++buf; + } + while (size-- > 0) { + if (buf <= end) + *buf = ' '; + ++buf; + } + return buf; +} + +int _kc_vsnprintf(char *buf, size_t size, const char *fmt, va_list args) +{ + int len; + unsigned long long num; + int i, base; + char *str, *end, c; + const char *s; + + int flags; /* flags to number() */ + + int field_width; /* width of output field */ + int precision; /* min. # of digits for integers; max + number of chars for from string */ + int qualifier; /* 'h', 'l', or 'L' for integer fields */ + /* 'z' support added 23/7/1999 S.H. */ + /* 'z' changed to 'Z' --davidm 1/25/99 */ + + str = buf; + end = buf + size - 1; + + if (end < buf - 1) { + end = ((void *) -1); + size = end - buf + 1; + } + + for (; *fmt ; ++fmt) { + if (*fmt != '%') { + if (str <= end) + *str = *fmt; + ++str; + continue; + } + + /* process flags */ + flags = 0; + repeat: + ++fmt; /* this also skips first '%' */ + switch (*fmt) { + case '-': flags |= _kc_LEFT; goto repeat; + case '+': flags |= _kc_PLUS; goto repeat; + case ' ': flags |= _kc_SPACE; goto repeat; + case '#': flags |= _kc_SPECIAL; goto repeat; + case '0': flags |= _kc_ZEROPAD; goto repeat; + } + + /* get field width */ + field_width = -1; + if (isdigit(*fmt)) + field_width = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + field_width = va_arg(args, int); + if (field_width < 0) { + field_width = -field_width; + flags |= _kc_LEFT; + } + } + + /* get the precision */ + precision = -1; + if (*fmt == '.') { + ++fmt; + if (isdigit(*fmt)) + precision = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + precision = va_arg(args, int); + } + if (precision < 0) + precision = 0; + } + + /* get the conversion qualifier */ + qualifier = -1; + if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt =='Z') { + qualifier = *fmt; + ++fmt; + } + + /* default base */ + base = 10; + + switch (*fmt) { + case 'c': + if (!(flags & _kc_LEFT)) { + while (--field_width > 0) { + if (str <= end) + *str = ' '; + ++str; + } + } + c = (unsigned char) va_arg(args, int); + if (str <= end) + *str = c; + ++str; + while (--field_width > 0) { + if (str <= end) + *str = ' '; + ++str; + } + continue; + + case 's': + s = va_arg(args, char *); + if (!s) + s = "<NULL>"; + + len = strnlen(s, precision); + + if (!(flags & _kc_LEFT)) { + while (len < field_width--) { + if (str <= end) + *str = ' '; + ++str; + } + } + for (i = 0; i < len; ++i) { + if (str <= end) + *str = *s; + ++str; ++s; + } + while (len < field_width--) { + if (str <= end) + *str = ' '; + ++str; + } + continue; + + case 'p': + if (field_width == -1) { + field_width = 2*sizeof(void *); + flags |= _kc_ZEROPAD; + } + str = number(str, end, + (unsigned long) va_arg(args, void *), + 16, field_width, precision, flags); + continue; + + + case 'n': + /* FIXME: + * What does C99 say about the overflow case here? */ + if (qualifier == 'l') { + long * ip = va_arg(args, long *); + *ip = (str - buf); + } else if (qualifier == 'Z') { + size_t * ip = va_arg(args, size_t *); + *ip = (str - buf); + } else { + int * ip = va_arg(args, int *); + *ip = (str - buf); + } + continue; + + case '%': + if (str <= end) + *str = '%'; + ++str; + continue; + + /* integer number formats - set up the flags and "break" */ + case 'o': + base = 8; + break; + + case 'X': + flags |= _kc_LARGE; + case 'x': + base = 16; + break; + + case 'd': + case 'i': + flags |= _kc_SIGN; + case 'u': + break; + + default: + if (str <= end) + *str = '%'; + ++str; + if (*fmt) { + if (str <= end) + *str = *fmt; + ++str; + } else { + --fmt; + } + continue; + } + if (qualifier == 'L') + num = va_arg(args, long long); + else if (qualifier == 'l') { + num = va_arg(args, unsigned long); + if (flags & _kc_SIGN) + num = (signed long) num; + } else if (qualifier == 'Z') { + num = va_arg(args, size_t); + } else if (qualifier == 'h') { + num = (unsigned short) va_arg(args, int); + if (flags & _kc_SIGN) + num = (signed short) num; + } else { + num = va_arg(args, unsigned int); + if (flags & _kc_SIGN) + num = (signed int) num; + } + str = number(str, end, num, base, + field_width, precision, flags); + } + if (str <= end) + *str = '\0'; + else if (size > 0) + /* don't write out a null byte if the buf size is zero */ + *end = '\0'; + /* the trailing null byte doesn't count towards the total + * ++str; + */ + return str-buf; +} + +int _kc_snprintf(char * buf, size_t size, const char *fmt, ...) +{ + va_list args; + int i; + + va_start(args, fmt); + i = _kc_vsnprintf(buf,size,fmt,args); + va_end(args); + return i; +} +#endif /* < 2.4.8 */ + + + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) ) +#ifdef CONFIG_PCI_IOV +int __kc_pci_vfs_assigned(struct pci_dev *dev) +{ + unsigned int vfs_assigned = 0; +#ifdef HAVE_PCI_DEV_FLAGS_ASSIGNED + int pos; + struct pci_dev *vfdev; + unsigned short dev_id; + + /* only search if we are a PF */ + if (!dev->is_physfn) + return 0; + + /* find SR-IOV capability */ + pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); + if (!pos) + return 0; + + /* + * * determine the device ID for the VFs, the vendor ID will be the + * * same as the PF so there is no need to check for that one + * */ + pci_read_config_word(dev, pos + PCI_SRIOV_VF_DID, &dev_id); + + /* loop through all the VFs to see if we own any that are assigned */ + vfdev = pci_get_device(dev->vendor, dev_id, NULL); + while (vfdev) { + /* + * * It is considered assigned if it is a virtual function with + * * our dev as the physical function and the assigned bit is set + * */ + if (vfdev->is_virtfn && (vfdev->physfn == dev) && + (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)) + vfs_assigned++; + + vfdev = pci_get_device(dev->vendor, dev_id, vfdev); + } + +#endif /* HAVE_PCI_DEV_FLAGS_ASSIGNED */ + return vfs_assigned; +} + +#endif /* CONFIG_PCI_IOV */ +#endif /* 3.10.0 */ + + + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,13) ) + +/**************************************/ +/* PCI DMA MAPPING */ + +#if defined(CONFIG_HIGHMEM) + +#ifndef PCI_DRAM_OFFSET +#define PCI_DRAM_OFFSET 0 +#endif + +u64 +_kc_pci_map_page(struct pci_dev *dev, struct page *page, unsigned long offset, + size_t size, int direction) +{ + return ((u64) (page - mem_map) << PAGE_SHIFT) + offset + + PCI_DRAM_OFFSET; +} + +#else /* CONFIG_HIGHMEM */ + +u64 +_kc_pci_map_page(struct pci_dev *dev, struct page *page, unsigned long offset, + size_t size, int direction) +{ + return pci_map_single(dev, (void *)page_address(page) + offset, size, + direction); +} + +#endif /* CONFIG_HIGHMEM */ + +void +_kc_pci_unmap_page(struct pci_dev *dev, u64 dma_addr, size_t size, + int direction) +{ + return pci_unmap_single(dev, dma_addr, size, direction); +} + +#endif /* 2.4.13 => 2.4.3 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3) ) + +/**************************************/ +/* PCI DRIVER API */ + +int +_kc_pci_set_dma_mask(struct pci_dev *dev, dma_addr_t mask) +{ + if (!pci_dma_supported(dev, mask)) + return -EIO; + dev->dma_mask = mask; + return 0; +} + +int +_kc_pci_request_regions(struct pci_dev *dev, char *res_name) +{ + int i; + + for (i = 0; i < 6; i++) { + if (pci_resource_len(dev, i) == 0) + continue; + + if (pci_resource_flags(dev, i) & IORESOURCE_IO) { + if (!request_region(pci_resource_start(dev, i), pci_resource_len(dev, i), res_name)) { + pci_release_regions(dev); + return -EBUSY; + } + } else if (pci_resource_flags(dev, i) & IORESOURCE_MEM) { + if (!request_mem_region(pci_resource_start(dev, i), pci_resource_len(dev, i), res_name)) { + pci_release_regions(dev); + return -EBUSY; + } + } + } + return 0; +} + +void +_kc_pci_release_regions(struct pci_dev *dev) +{ + int i; + + for (i = 0; i < 6; i++) { + if (pci_resource_len(dev, i) == 0) + continue; + + if (pci_resource_flags(dev, i) & IORESOURCE_IO) + release_region(pci_resource_start(dev, i), pci_resource_len(dev, i)); + + else if (pci_resource_flags(dev, i) & IORESOURCE_MEM) + release_mem_region(pci_resource_start(dev, i), pci_resource_len(dev, i)); + } +} + +/**************************************/ +/* NETWORK DRIVER API */ + +struct net_device * +_kc_alloc_etherdev(int sizeof_priv) +{ + struct net_device *dev; + int alloc_size; + + alloc_size = sizeof(*dev) + sizeof_priv + IFNAMSIZ + 31; + dev = kzalloc(alloc_size, GFP_KERNEL); + if (!dev) + return NULL; + + if (sizeof_priv) + dev->priv = (void *) (((unsigned long)(dev + 1) + 31) & ~31); + dev->name[0] = '\0'; + ether_setup(dev); + + return dev; +} + +int +_kc_is_valid_ether_addr(u8 *addr) +{ + const char zaddr[6] = { 0, }; + + return !(addr[0] & 1) && memcmp(addr, zaddr, 6); +} + +#endif /* 2.4.3 => 2.4.0 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,6) ) + +int +_kc_pci_set_power_state(struct pci_dev *dev, int state) +{ + return 0; +} + +int +_kc_pci_enable_wake(struct pci_dev *pdev, u32 state, int enable) +{ + return 0; +} + +#endif /* 2.4.6 => 2.4.3 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) ) +void _kc_skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page, + int off, int size) +{ + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + frag->page = page; + frag->page_offset = off; + frag->size = size; + skb_shinfo(skb)->nr_frags = i + 1; +} + +/* + * Original Copyright: + * find_next_bit.c: fallback find next bit implementation + * + * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +/** + * find_next_bit - find the next set bit in a memory region + * @addr: The address to base the search on + * @offset: The bitnumber to start searching at + * @size: The maximum size to search + */ +unsigned long find_next_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) +{ + const unsigned long *p = addr + BITOP_WORD(offset); + unsigned long result = offset & ~(BITS_PER_LONG-1); + unsigned long tmp; + + if (offset >= size) + return size; + size -= result; + offset %= BITS_PER_LONG; + if (offset) { + tmp = *(p++); + tmp &= (~0UL << offset); + if (size < BITS_PER_LONG) + goto found_first; + if (tmp) + goto found_middle; + size -= BITS_PER_LONG; + result += BITS_PER_LONG; + } + while (size & ~(BITS_PER_LONG-1)) { + if ((tmp = *(p++))) + goto found_middle; + result += BITS_PER_LONG; + size -= BITS_PER_LONG; + } + if (!size) + return result; + tmp = *p; + +found_first: + tmp &= (~0UL >> (BITS_PER_LONG - size)); + if (tmp == 0UL) /* Are any bits set? */ + return result + size; /* Nope. */ +found_middle: + return result + ffs(tmp); +} + +size_t _kc_strlcpy(char *dest, const char *src, size_t size) +{ + size_t ret = strlen(src); + + if (size) { + size_t len = (ret >= size) ? size - 1 : ret; + memcpy(dest, src, len); + dest[len] = '\0'; + } + return ret; +} + +#endif /* 2.6.0 => 2.4.6 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) ) +int _kc_scnprintf(char * buf, size_t size, const char *fmt, ...) +{ + va_list args; + int i; + + va_start(args, fmt); + i = vsnprintf(buf, size, fmt, args); + va_end(args); + return (i >= size) ? (size - 1) : i; +} +#endif /* < 2.6.4 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) ) +DECLARE_BITMAP(_kcompat_node_online_map, MAX_NUMNODES) = {1}; +#endif /* < 2.6.10 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13) ) +char *_kc_kstrdup(const char *s, unsigned int gfp) +{ + size_t len; + char *buf; + + if (!s) + return NULL; + + len = strlen(s) + 1; + buf = kmalloc(len, gfp); + if (buf) + memcpy(buf, s, len); + return buf; +} +#endif /* < 2.6.13 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) ) +void *_kc_kzalloc(size_t size, int flags) +{ + void *ret = kmalloc(size, flags); + if (ret) + memset(ret, 0, size); + return ret; +} +#endif /* <= 2.6.13 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) ) +int _kc_skb_pad(struct sk_buff *skb, int pad) +{ + int ntail; + + /* If the skbuff is non linear tailroom is always zero.. */ + if(!skb_cloned(skb) && skb_tailroom(skb) >= pad) { + memset(skb->data+skb->len, 0, pad); + return 0; + } + + ntail = skb->data_len + pad - (skb->end - skb->tail); + if (likely(skb_cloned(skb) || ntail > 0)) { + if (pskb_expand_head(skb, 0, ntail, GFP_ATOMIC)); + goto free_skb; + } + +#ifdef MAX_SKB_FRAGS + if (skb_is_nonlinear(skb) && + !__pskb_pull_tail(skb, skb->data_len)) + goto free_skb; + +#endif + memset(skb->data + skb->len, 0, pad); + return 0; + +free_skb: + kfree_skb(skb); + return -ENOMEM; +} + +#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(5,4))) +int _kc_pci_save_state(struct pci_dev *pdev) +{ + struct adapter_struct *adapter = pci_get_drvdata(pdev); + int size = PCI_CONFIG_SPACE_LEN, i; + u16 pcie_cap_offset, pcie_link_status; + +#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) ) + /* no ->dev for 2.4 kernels */ + WARN_ON(pdev->dev.driver_data == NULL); +#endif + pcie_cap_offset = pci_find_capability(pdev, PCI_CAP_ID_EXP); + if (pcie_cap_offset) { + if (!pci_read_config_word(pdev, + pcie_cap_offset + PCIE_LINK_STATUS, + &pcie_link_status)) + size = PCIE_CONFIG_SPACE_LEN; + } + pci_config_space_ich8lan(); +#ifdef HAVE_PCI_ERS + if (adapter->config_space == NULL) +#else + WARN_ON(adapter->config_space != NULL); +#endif + adapter->config_space = kmalloc(size, GFP_KERNEL); + if (!adapter->config_space) { + printk(KERN_ERR "Out of memory in pci_save_state\n"); + return -ENOMEM; + } + for (i = 0; i < (size / 4); i++) + pci_read_config_dword(pdev, i * 4, &adapter->config_space[i]); + return 0; +} + +void _kc_pci_restore_state(struct pci_dev *pdev) +{ + struct adapter_struct *adapter = pci_get_drvdata(pdev); + int size = PCI_CONFIG_SPACE_LEN, i; + u16 pcie_cap_offset; + u16 pcie_link_status; + + if (adapter->config_space != NULL) { + pcie_cap_offset = pci_find_capability(pdev, PCI_CAP_ID_EXP); + if (pcie_cap_offset && + !pci_read_config_word(pdev, + pcie_cap_offset + PCIE_LINK_STATUS, + &pcie_link_status)) + size = PCIE_CONFIG_SPACE_LEN; + + pci_config_space_ich8lan(); + for (i = 0; i < (size / 4); i++) + pci_write_config_dword(pdev, i * 4, adapter->config_space[i]); +#ifndef HAVE_PCI_ERS + kfree(adapter->config_space); + adapter->config_space = NULL; +#endif + } +} +#endif /* !(RHEL_RELEASE_CODE >= RHEL 5.4) */ + +#ifdef HAVE_PCI_ERS +void _kc_free_netdev(struct net_device *netdev) +{ + struct adapter_struct *adapter = netdev_priv(netdev); + + if (adapter->config_space != NULL) + kfree(adapter->config_space); +#ifdef CONFIG_SYSFS + if (netdev->reg_state == NETREG_UNINITIALIZED) { + kfree((char *)netdev - netdev->padded); + } else { + BUG_ON(netdev->reg_state != NETREG_UNREGISTERED); + netdev->reg_state = NETREG_RELEASED; + class_device_put(&netdev->class_dev); + } +#else + kfree((char *)netdev - netdev->padded); +#endif +} +#endif + +void *_kc_kmemdup(const void *src, size_t len, unsigned gfp) +{ + void *p; + + p = kzalloc(len, gfp); + if (p) + memcpy(p, src, len); + return p; +} +#endif /* <= 2.6.19 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) ) +/* hexdump code taken from lib/hexdump.c */ +static void _kc_hex_dump_to_buffer(const void *buf, size_t len, int rowsize, + int groupsize, unsigned char *linebuf, + size_t linebuflen, bool ascii) +{ + const u8 *ptr = buf; + u8 ch; + int j, lx = 0; + int ascii_column; + + if (rowsize != 16 && rowsize != 32) + rowsize = 16; + + if (!len) + goto nil; + if (len > rowsize) /* limit to one line at a time */ + len = rowsize; + if ((len % groupsize) != 0) /* no mixed size output */ + groupsize = 1; + + switch (groupsize) { + case 8: { + const u64 *ptr8 = buf; + int ngroups = len / groupsize; + + for (j = 0; j < ngroups; j++) + lx += scnprintf((char *)(linebuf + lx), linebuflen - lx, + "%s%16.16llx", j ? " " : "", + (unsigned long long)*(ptr8 + j)); + ascii_column = 17 * ngroups + 2; + break; + } + + case 4: { + const u32 *ptr4 = buf; + int ngroups = len / groupsize; + + for (j = 0; j < ngroups; j++) + lx += scnprintf((char *)(linebuf + lx), linebuflen - lx, + "%s%8.8x", j ? " " : "", *(ptr4 + j)); + ascii_column = 9 * ngroups + 2; + break; + } + + case 2: { + const u16 *ptr2 = buf; + int ngroups = len / groupsize; + + for (j = 0; j < ngroups; j++) + lx += scnprintf((char *)(linebuf + lx), linebuflen - lx, + "%s%4.4x", j ? " " : "", *(ptr2 + j)); + ascii_column = 5 * ngroups + 2; + break; + } + + default: + for (j = 0; (j < len) && (lx + 3) <= linebuflen; j++) { + ch = ptr[j]; + linebuf[lx++] = hex_asc(ch >> 4); + linebuf[lx++] = hex_asc(ch & 0x0f); + linebuf[lx++] = ' '; + } + if (j) + lx--; + + ascii_column = 3 * rowsize + 2; + break; + } + if (!ascii) + goto nil; + + while (lx < (linebuflen - 1) && lx < (ascii_column - 1)) + linebuf[lx++] = ' '; + for (j = 0; (j < len) && (lx + 2) < linebuflen; j++) + linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j] + : '.'; +nil: + linebuf[lx++] = '\0'; +} + +void _kc_print_hex_dump(const char *level, + const char *prefix_str, int prefix_type, + int rowsize, int groupsize, + const void *buf, size_t len, bool ascii) +{ + const u8 *ptr = buf; + int i, linelen, remaining = len; + unsigned char linebuf[200]; + + if (rowsize != 16 && rowsize != 32) + rowsize = 16; + + for (i = 0; i < len; i += rowsize) { + linelen = min(remaining, rowsize); + remaining -= rowsize; + _kc_hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize, + linebuf, sizeof(linebuf), ascii); + + switch (prefix_type) { + case DUMP_PREFIX_ADDRESS: + printk("%s%s%*p: %s\n", level, prefix_str, + (int)(2 * sizeof(void *)), ptr + i, linebuf); + break; + case DUMP_PREFIX_OFFSET: + printk("%s%s%.8x: %s\n", level, prefix_str, i, linebuf); + break; + default: + printk("%s%s%s\n", level, prefix_str, linebuf); + break; + } + } +} +#endif /* < 2.6.22 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) ) +int ixgbe_dcb_netlink_register(void) +{ + return 0; +} + +int ixgbe_dcb_netlink_unregister(void) +{ + return 0; +} + +int ixgbe_copy_dcb_cfg(struct ixgbe_adapter *adapter, int tc_max) +{ + return 0; +} +#endif /* < 2.6.23 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) ) +#ifdef NAPI +struct net_device *napi_to_poll_dev(struct napi_struct *napi) +{ + struct adapter_q_vector *q_vector = container_of(napi, + struct adapter_q_vector, + napi); + return &q_vector->poll_dev; +} + +int __kc_adapter_clean(struct net_device *netdev, int *budget) +{ + int work_done; + int work_to_do = min(*budget, netdev->quota); + /* kcompat.h netif_napi_add puts napi struct in "fake netdev->priv" */ + struct napi_struct *napi = netdev->priv; + work_done = napi->poll(napi, work_to_do); + *budget -= work_done; + netdev->quota -= work_done; + return (work_done >= work_to_do) ? 1 : 0; +} +#endif /* NAPI */ +#endif /* <= 2.6.24 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) ) +void _kc_pci_disable_link_state(struct pci_dev *pdev, int state) +{ + struct pci_dev *parent = pdev->bus->self; + u16 link_state; + int pos; + + if (!parent) + return; + + pos = pci_find_capability(parent, PCI_CAP_ID_EXP); + if (pos) { + pci_read_config_word(parent, pos + PCI_EXP_LNKCTL, &link_state); + link_state &= ~state; + pci_write_config_word(parent, pos + PCI_EXP_LNKCTL, link_state); + } +} +#endif /* < 2.6.26 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) ) +#ifdef HAVE_TX_MQ +void _kc_netif_tx_stop_all_queues(struct net_device *netdev) +{ + struct adapter_struct *adapter = netdev_priv(netdev); + int i; + + netif_stop_queue(netdev); + if (netif_is_multiqueue(netdev)) + for (i = 0; i < adapter->num_tx_queues; i++) + netif_stop_subqueue(netdev, i); +} +void _kc_netif_tx_wake_all_queues(struct net_device *netdev) +{ + struct adapter_struct *adapter = netdev_priv(netdev); + int i; + + netif_wake_queue(netdev); + if (netif_is_multiqueue(netdev)) + for (i = 0; i < adapter->num_tx_queues; i++) + netif_wake_subqueue(netdev, i); +} +void _kc_netif_tx_start_all_queues(struct net_device *netdev) +{ + struct adapter_struct *adapter = netdev_priv(netdev); + int i; + + netif_start_queue(netdev); + if (netif_is_multiqueue(netdev)) + for (i = 0; i < adapter->num_tx_queues; i++) + netif_start_subqueue(netdev, i); +} +#endif /* HAVE_TX_MQ */ + +#ifndef __WARN_printf +void __kc_warn_slowpath(const char *file, int line, const char *fmt, ...) +{ + va_list args; + + printk(KERN_WARNING "------------[ cut here ]------------\n"); + printk(KERN_WARNING "WARNING: at %s:%d %s()\n", file, line); + va_start(args, fmt); + vprintk(fmt, args); + va_end(args); + + dump_stack(); +} +#endif /* __WARN_printf */ +#endif /* < 2.6.27 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) ) + +int +_kc_pci_prepare_to_sleep(struct pci_dev *dev) +{ + pci_power_t target_state; + int error; + + target_state = pci_choose_state(dev, PMSG_SUSPEND); + + pci_enable_wake(dev, target_state, true); + + error = pci_set_power_state(dev, target_state); + + if (error) + pci_enable_wake(dev, target_state, false); + + return error; +} + +int +_kc_pci_wake_from_d3(struct pci_dev *dev, bool enable) +{ + int err; + + err = pci_enable_wake(dev, PCI_D3cold, enable); + if (err) + goto out; + + err = pci_enable_wake(dev, PCI_D3hot, enable); + +out: + return err; +} +#endif /* < 2.6.28 */ + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) ) +void _kc_skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, + int off, int size) +{ + skb_fill_page_desc(skb, i, page, off, size); + skb->len += size; + skb->data_len += size; + skb->truesize += size; +} +#endif /* < 3.4.0 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) ) +#ifdef HAVE_NETDEV_SELECT_QUEUE +#include <net/ip.h> +static u32 _kc_simple_tx_hashrnd; +static u32 _kc_simple_tx_hashrnd_initialized; + +u16 _kc_skb_tx_hash(struct net_device *dev, struct sk_buff *skb) +{ + u32 addr1, addr2, ports; + u32 hash, ihl; + u8 ip_proto = 0; + + if (unlikely(!_kc_simple_tx_hashrnd_initialized)) { + get_random_bytes(&_kc_simple_tx_hashrnd, 4); + _kc_simple_tx_hashrnd_initialized = 1; + } + + switch (skb->protocol) { + case htons(ETH_P_IP): + if (!(ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET))) + ip_proto = ip_hdr(skb)->protocol; + addr1 = ip_hdr(skb)->saddr; + addr2 = ip_hdr(skb)->daddr; + ihl = ip_hdr(skb)->ihl; + break; +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + case htons(ETH_P_IPV6): + ip_proto = ipv6_hdr(skb)->nexthdr; + addr1 = ipv6_hdr(skb)->saddr.s6_addr32[3]; + addr2 = ipv6_hdr(skb)->daddr.s6_addr32[3]; + ihl = (40 >> 2); + break; +#endif + default: + return 0; + } + + + switch (ip_proto) { + case IPPROTO_TCP: + case IPPROTO_UDP: + case IPPROTO_DCCP: + case IPPROTO_ESP: + case IPPROTO_AH: + case IPPROTO_SCTP: + case IPPROTO_UDPLITE: + ports = *((u32 *) (skb_network_header(skb) + (ihl * 4))); + break; + + default: + ports = 0; + break; + } + + hash = jhash_3words(addr1, addr2, ports, _kc_simple_tx_hashrnd); + + return (u16) (((u64) hash * dev->real_num_tx_queues) >> 32); +} +#endif /* HAVE_NETDEV_SELECT_QUEUE */ +#endif /* < 2.6.30 */ + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) ) +#ifdef HAVE_TX_MQ +#ifndef CONFIG_NETDEVICES_MULTIQUEUE +void _kc_netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq) +{ + unsigned int real_num = dev->real_num_tx_queues; + struct Qdisc *qdisc; + int i; + + if (unlikely(txq > dev->num_tx_queues)) + ; + else if (txq > real_num) + dev->real_num_tx_queues = txq; + else if ( txq < real_num) { + dev->real_num_tx_queues = txq; + for (i = txq; i < dev->num_tx_queues; i++) { + qdisc = netdev_get_tx_queue(dev, i)->qdisc; + if (qdisc) { + spin_lock_bh(qdisc_lock(qdisc)); + qdisc_reset(qdisc); + spin_unlock_bh(qdisc_lock(qdisc)); + } + } + } +} +#endif /* CONFIG_NETDEVICES_MULTIQUEUE */ +#endif /* HAVE_TX_MQ */ +#endif /* < 2.6.35 */ + +/*****************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) ) +static const u32 _kc_flags_dup_features = + (ETH_FLAG_LRO | ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH); + +u32 _kc_ethtool_op_get_flags(struct net_device *dev) +{ + return dev->features & _kc_flags_dup_features; +} + +int _kc_ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported) +{ + if (data & ~supported) + return -EINVAL; + + dev->features = ((dev->features & ~_kc_flags_dup_features) | + (data & _kc_flags_dup_features)); + return 0; +} +#endif /* < 2.6.36 */ + +/******************************************************************************/ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) ) +#if (!(RHEL_RELEASE_CODE && RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0))) +u8 _kc_netdev_get_num_tc(struct net_device *dev) +{ + struct adapter_struct *kc_adapter = netdev_priv(dev); + if (kc_adapter->flags & IXGBE_FLAG_DCB_ENABLED) + return kc_adapter->tc; + else + return 0; +} + +u8 _kc_netdev_get_prio_tc_map(struct net_device *dev, u8 up) +{ + struct adapter_struct *kc_adapter = netdev_priv(dev); + int tc; + u8 map; + + for (tc = 0; tc < IXGBE_DCB_MAX_TRAFFIC_CLASS; tc++) { + map = kc_adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap; + + if (map & (1 << up)) + return tc; + } + + return 0; +} +#endif /* !(RHEL_RELEASE_CODE > RHEL_RELEASE_VERSION(6,0)) */ +#endif /* < 2.6.39 */ |