3be4cb0b4a
changes: 01 - Enhanced LRO: LRO feature is extended to support multi-buffer mode. Previously, Ethernet frames received in contiguous buffers were offloaded. Now, frames received in multiple non-contiguous buffers can be offloaded, as well. The driver now supports LRO for jumbo frames. 02 - Locks Optimization: The driver code was re-organized to limit the use of locks. Moreover, lock contention was reduced by replacing wait locks with try locks. 03 - Code Optimization: The driver code was re-factored to eliminate some memcpy operations. Fast path loops were optimized. 04 - Tag Creations: Physical Buffer Tags are now optimized based upon frame size. For better performance, Physical Memory Maps are now re-used. 05 - Configuration: Features such as TSO, LRO, and Interrupt Mode can be configured either at load or at run time. Rx buffer mode (mode 1 or mode 2) can be configured at load time through kenv. 06 - Driver Statistics: Run time statistics are enhanced to provide better visibility into the driver performance. 07 - Bug Fixes: The driver contains fixes for the problems discovered and reported since last submission. 08 - MSI support: Added Message Signaled Interrupt feature which currently uses 1 message. 09 Removed feature: Rx 3 buffer mode feature has been removed. Driver now supports 1, 2 and 5 buffer modes of which 2 and 5 buffer modes can be used for header separation. 10 Compiler warning: Fixed compiler warning when compiled for 32 bit system. 11 Copyright notice: Source files are updated with the proper copyright notice. MFC after: 3 days Submitted by: Alicia Pena <Alicia dot Pena at neterion dot com>, Muhammad Shafiq <Muhammad dot Shafiq at neterion dot com>
126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/*-
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* Copyright (c) 2002-2007 Neterion, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef XGE_OS_PAL_H
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#define XGE_OS_PAL_H
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#include <dev/nxge/include/xge-defs.h>
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__EXTERN_BEGIN_DECLS
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/*--------------------------- platform switch ------------------------------*/
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/* platform specific header */
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#include <dev/nxge/xge-osdep.h>
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#if !defined(XGE_OS_PLATFORM_64BIT) && !defined(XGE_OS_PLATFORM_32BIT)
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#error "either 32bit or 64bit switch must be defined!"
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#endif
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#if !defined(XGE_OS_HOST_BIG_ENDIAN) && !defined(XGE_OS_HOST_LITTLE_ENDIAN)
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#error "either little endian or big endian switch must be defined!"
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#endif
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#if defined(XGE_OS_PLATFORM_64BIT)
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#define XGE_OS_MEMORY_DEADCODE_PAT 0x5a5a5a5a5a5a5a5a
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#else
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#define XGE_OS_MEMORY_DEADCODE_PAT 0x5a5a5a5a
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#endif
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#define XGE_OS_TRACE_MSGBUF_MAX 512
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typedef struct xge_os_tracebuf_t {
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int wrapped_once; /* circular buffer been wrapped */
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int timestamp; /* whether timestamps are enabled */
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volatile int offset; /* offset within the tracebuf */
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int size; /* total size of trace buffer */
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char msg[XGE_OS_TRACE_MSGBUF_MAX]; /* each individual buffer */
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int msgbuf_max; /* actual size of msg buffer */
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char *data; /* pointer to data buffer */
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} xge_os_tracebuf_t;
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extern xge_os_tracebuf_t *g_xge_os_tracebuf;
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#ifdef XGE_TRACE_INTO_CIRCULAR_ARR
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extern xge_os_tracebuf_t *g_xge_os_tracebuf;
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extern char *dmesg_start;
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/* Calculate the size of the msg and copy it into the global buffer */
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#define __xge_trace(tb) { \
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int msgsize = xge_os_strlen(tb->msg) + 2; \
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int offset = tb->offset; \
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if (msgsize != 2 && msgsize < tb->msgbuf_max) { \
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int leftsize = tb->size - offset; \
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if ((msgsize + tb->msgbuf_max) > leftsize) { \
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xge_os_memzero(tb->data + offset, leftsize); \
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offset = 0; \
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tb->wrapped_once = 1; \
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} \
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xge_os_memcpy(tb->data + offset, tb->msg, msgsize-1); \
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*(tb->data + offset + msgsize-1) = '\n'; \
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*(tb->data + offset + msgsize) = 0; \
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offset += msgsize; \
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tb->offset = offset; \
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dmesg_start = tb->data + offset; \
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*tb->msg = 0; \
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} \
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}
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#define xge_os_vatrace(tb, fmt) { \
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if (tb != NULL) { \
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char *_p = tb->msg; \
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if (tb->timestamp) { \
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xge_os_timestamp(tb->msg); \
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_p = tb->msg + xge_os_strlen(tb->msg); \
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} \
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xge_os_vasprintf(_p, fmt); \
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__xge_trace(tb); \
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} \
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}
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#ifdef __GNUC__
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#define xge_os_trace(tb, fmt...) { \
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if (tb != NULL) { \
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if (tb->timestamp) { \
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xge_os_timestamp(tb->msg); \
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} \
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xge_os_sprintf(tb->msg + xge_os_strlen(tb->msg), fmt); \
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__xge_trace(tb); \
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} \
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}
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#endif /* __GNUC__ */
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#else
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#define xge_os_vatrace(tb, fmt)
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#ifdef __GNUC__
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#define xge_os_trace(tb, fmt...)
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#endif /* __GNUC__ */
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#endif
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__EXTERN_END_DECLS
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#endif /* XGE_OS_PAL_H */
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