/* * Copyright (c) 2000-2001 Christoph Hellwig. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL"). * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #ifndef _VXFS_DIR_H_ #define _VXFS_DIR_H_ /* * Veritas filesystem driver - directory structure. * * This file contains the definition of the vxfs directory format. */ /* * VxFS directory block header. * * This entry is the head of every filesystem block in a directory. * It is used for free space management and additionally includes * a hash for speeding up directory search (lookup). * * The hash may be empty and in fact we do not use it all in the * Linux driver for now. */ struct vxfs_dirblk { __fs16 d_free; /* free space in dirblock */ __fs16 d_nhash; /* no of hash chains */ __fs16 d_hash[1]; /* hash chain */ }; /* * VXFS_NAMELEN is the maximum length of the d_name field * of an VxFS directory entry. */ #define VXFS_NAMELEN 256 /* * VxFS directory entry. */ struct vxfs_direct { __fs32 d_ino; /* inode number */ __fs16 d_reclen; /* record length */ __fs16 d_namelen; /* d_name length */ __fs16 d_hashnext; /* next hash entry */ char d_name[VXFS_NAMELEN]; /* name */ }; /* * VXFS_DIRPAD defines the directory entry boundaries, is _must_ be * a multiple of four. * VXFS_NAMEMIN is the length of a directory entry with a NULL d_name. * VXFS_DIRROUND is an internal macros that rounds a length to a value * usable for directory sizes. * VXFS_DIRLEN calculates the directory entry size for an entry with * a d_name with size len. */ #define VXFS_DIRPAD 4 #define VXFS_NAMEMIN offsetof(struct vxfs_direct, d_name) #define VXFS_DIRROUND(len) ((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1)) #define VXFS_DIRLEN(len) (VXFS_DIRROUND(VXFS_NAMEMIN + (len))) /* * VXFS_DIRBLKOV is the overhead of a specific dirblock. */ #define VXFS_DIRBLKOV(sbi, dbp) \ ((sizeof(short) * fs16_to_cpu(sbi, dbp->d_nhash)) + 4) #endif /* _VXFS_DIR_H_ */ cisreg.h
it/commit/?id=745fc05c9db1f17da076861c7f57507e13f28a3a'>bnxt_en: Add bp->rx_dir field for rx buffer DMA direction.
AgeCommit message (Expand)AuthorFilesLines
Michael Chan2-15/+13
When driver is running in XDP mode, rx buffers are DMA mapped as DMA_BIDIRECTIONAL. Add a field so the code will map/unmap rx buffers according to this field. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07bnxt_en: Don't use DEFINE_DMA_UNMAP_ADDR to store DMA address in RX path.Michael Chan2-13/+10
To support XDP_TX, we need the RX buffer's DMA address to transmit the packet. Convert the DMA address field to a permanent field in bnxt_sw_rx_bd. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07bnxt_en: Refactor rx SKB function.Michael Chan2-16/+44
Minor refactoring of bnxt_rx_skb() so that it can easily be replaced by a new function that handles packets in a single page. Also, use a function pointer bp->rx_skb_func() to switch to a new function when we add the new mode in the next patch. Add a new field data_ptr that points to the packet data in the bnxt_sw_rx_bd structure. The original data field is changed to void pointer so that it can either hold the kmalloc'ed data or a page pointer. The last parameter of bnxt_rx_skb() which was the length parameter is changed to include the payload offset of the packet in the upper 16 bit. The offset is needed to support the rx page mode and is not used in this existing function. v3: Added a new data_ptr parameter to bp->rx_skb_func(). The caller has the option to modify the starting address of the packet. This will be needed when XDP with headroom support is added. v2: Changed the name of the last parameter to offset_and_len to make the code more clear. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07net: qcom/emac: add ethool support for setting pause parametersTimur Tabi