080575042aba2197b425ebfd52061dea061a9aa1xy * This file is provided under a CDDLv1 license. When using or
080575042aba2197b425ebfd52061dea061a9aa1xy * redistributing this file, you may do so under this license.
080575042aba2197b425ebfd52061dea061a9aa1xy * In redistributing this file this license must be included
080575042aba2197b425ebfd52061dea061a9aa1xy * and no other modification of this header file is permitted.
080575042aba2197b425ebfd52061dea061a9aa1xy * CDDL LICENSE SUMMARY
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems * Copyright(c) 1999 - 2009 Intel Corporation. All rights reserved.
080575042aba2197b425ebfd52061dea061a9aa1xy * The contents of this file are subject to the terms of Version
080575042aba2197b425ebfd52061dea061a9aa1xy * 1.0 of the Common Development and Distribution License (the "License").
080575042aba2197b425ebfd52061dea061a9aa1xy * You should have received a copy of the License with this software.
080575042aba2197b425ebfd52061dea061a9aa1xy * You can obtain a copy of the License at
080575042aba2197b425ebfd52061dea061a9aa1xy * See the License for the specific language governing permissions
080575042aba2197b425ebfd52061dea061a9aa1xy * and limitations under the License.
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
080575042aba2197b425ebfd52061dea061a9aa1xy * **********************************************************************
080575042aba2197b425ebfd52061dea061a9aa1xy * Module Name: *
080575042aba2197b425ebfd52061dea061a9aa1xy * Abstract: *
25f2d433de915875c8393f0b0dc14aa155997ad0xy * This file contains some routines that take care of *
25f2d433de915875c8393f0b0dc14aa155997ad0xy * memory allocation for descriptors and buffers. *
080575042aba2197b425ebfd52061dea061a9aa1xy * **********************************************************************
080575042aba2197b425ebfd52061dea061a9aa1xystatic int e1000g_alloc_tx_descriptors(e1000g_tx_ring_t *);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemsstatic int e1000g_alloc_rx_descriptors(e1000g_rx_data_t *);
080575042aba2197b425ebfd52061dea061a9aa1xystatic void e1000g_free_tx_descriptors(e1000g_tx_ring_t *);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemsstatic void e1000g_free_rx_descriptors(e1000g_rx_data_t *);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemsstatic int e1000g_alloc_rx_packets(e1000g_rx_data_t *);
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing Chinastatic void e1000g_free_rx_packets(e1000g_rx_data_t *, boolean_t);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * In order to avoid address error crossing 64KB boundary
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * during PCI-X packets receving, e1000g_alloc_dma_buffer_82546
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * is used by some necessary adapter types.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinastatic int e1000g_alloc_dma_buffer_82546(struct e1000g *,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China dma_buffer_t *, size_t, ddi_dma_attr_t *p_dma_attr);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinastatic int e1000g_dma_mem_alloc_82546(dma_buffer_t *buf,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China size_t size, size_t *len);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinastatic boolean_t e1000g_cross_64k_bound(void *, uintptr_t);
080575042aba2197b425ebfd52061dea061a9aa1xystatic int e1000g_alloc_dvma_buffer(struct e1000g *, dma_buffer_t *, size_t);
080575042aba2197b425ebfd52061dea061a9aa1xystatic int e1000g_alloc_descriptors(struct e1000g *Adapter);
25f2d433de915875c8393f0b0dc14aa155997ad0xystatic void e1000g_free_descriptors(struct e1000g *Adapter);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemsstatic p_rx_sw_packet_t e1000g_alloc_rx_sw_packet(e1000g_rx_data_t *,
25f2d433de915875c8393f0b0dc14aa155997ad0xy/* DMA access attributes for descriptors <Little Endian> */
25f2d433de915875c8393f0b0dc14aa155997ad0xy/* DMA access attributes for DMA buffers */
25f2d433de915875c8393f0b0dc14aa155997ad0xy/* DMA attributes for tx mblk buffers */
25f2d433de915875c8393f0b0dc14aa155997ad0xy 0, /* lowest usable address */
4d7379630d53d9992780329b674af8c85935e858xiangtao you - Sun Microsystems - Beijing China MAX_COOKIES, /* maximum number of segments */
25f2d433de915875c8393f0b0dc14aa155997ad0xy/* DMA attributes for pre-allocated rx/tx buffers */
25f2d433de915875c8393f0b0dc14aa155997ad0xy 0, /* lowest usable address */
25f2d433de915875c8393f0b0dc14aa155997ad0xy/* DMA attributes for rx/tx descriptors */
25f2d433de915875c8393f0b0dc14aa155997ad0xy 0, /* lowest usable address */
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China E1000_MDALIGN, /* default alignment is 4k but can be changed */
080575042aba2197b425ebfd52061dea061a9aa1xy (uint_t)0xfc00fc, /* dlim_burstsizes for 32 and 64 bit xfers */
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China (Adapter->tx_freelist_num >= MIN_NUM_TX_FREELIST)) {
25f2d433de915875c8393f0b0dc14aa155997ad0xy * If the allocation fails due to resource shortage,
25f2d433de915875c8393f0b0dc14aa155997ad0xy * we'll reduce the numbers of descriptors/buffers by
25f2d433de915875c8393f0b0dc14aa155997ad0xy * half, and try the allocation again.
25f2d433de915875c8393f0b0dc14aa155997ad0xy * We must ensure the number of descriptors
25f2d433de915875c8393f0b0dc14aa155997ad0xy * is always a multiple of 8.
25f2d433de915875c8393f0b0dc14aa155997ad0xy * e1000g_alloc_descriptors - allocate DMA buffers for descriptors
25f2d433de915875c8393f0b0dc14aa155997ad0xy * This routine allocates neccesary DMA buffers for
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Transmit Descriptor Area
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Receive Descrpitor Area
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China if (Adapter->mem_workaround_82546 &&
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China ((Adapter->shared.mac.type == e1000_82545) ||
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China (Adapter->shared.mac.type == e1000_82546) ||
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China (Adapter->shared.mac.type == e1000_82546_rev_3))) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China /* Align on a 64k boundary for these adapter types */
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China Adapter->desc_align = E1000_MDALIGN_82546;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China /* Align on a 4k boundary for all other adapter types */
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China Adapter->desc_align = E1000_MDALIGN;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data = Adapter->rx_ring->rx_data;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems result = e1000g_alloc_rx_descriptors(rx_data);
25f2d433de915875c8393f0b0dc14aa155997ad0xystatic void
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data = Adapter->rx_ring->rx_data;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems e1000g_free_rx_descriptors(rx_data);
080575042aba2197b425ebfd52061dea061a9aa1xy * Solaris 7 has a problem with allocating physically contiguous memory
080575042aba2197b425ebfd52061dea061a9aa1xy * that is aligned on a 4K boundary. The transmit and rx descriptors
080575042aba2197b425ebfd52061dea061a9aa1xy * need to aligned on a 4kbyte boundary. We first try to allocate the
080575042aba2197b425ebfd52061dea061a9aa1xy * memory with DMA attributes set to 4K alignment and also no scatter/
080575042aba2197b425ebfd52061dea061a9aa1xy * gather mechanism specified. In most cases, this does not allocate
080575042aba2197b425ebfd52061dea061a9aa1xy * memory aligned at a 4Kbyte boundary. We then try asking for memory
080575042aba2197b425ebfd52061dea061a9aa1xy * aligned on 4K boundary with scatter/gather set to 2. This works when
080575042aba2197b425ebfd52061dea061a9aa1xy * the amount of memory is less than 4k i.e a page size. If neither of
080575042aba2197b425ebfd52061dea061a9aa1xy * these options work or if the number of descriptors is greater than
080575042aba2197b425ebfd52061dea061a9aa1xy * 4K, ie more than 256 descriptors, we allocate 4k extra memory and
080575042aba2197b425ebfd52061dea061a9aa1xy * and then align the memory at a 4k boundary.
25f2d433de915875c8393f0b0dc14aa155997ad0xy size = sizeof (struct e1000_tx_desc) * Adapter->tx_desc_num;
080575042aba2197b425ebfd52061dea061a9aa1xy * Memory allocation for the transmit buffer descriptors.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China dma_attr.dma_attr_align = Adapter->desc_align;
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate a new DMA handle for the transmit descriptor
080575042aba2197b425ebfd52061dea061a9aa1xy * memory area.
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate memory to DMA data to and from the transmit
080575042aba2197b425ebfd52061dea061a9aa1xy * descriptors.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ((uintptr_t)tx_ring->tbd_area & (Adapter->desc_align - 1))) {
080575042aba2197b425ebfd52061dea061a9aa1xy * Initialize the entire transmit buffer descriptor area to zero
080575042aba2197b425ebfd52061dea061a9aa1xy * If the previous DMA attributes setting could not give us contiguous
080575042aba2197b425ebfd52061dea061a9aa1xy * memory or the number of descriptors is greater than the page size,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * we allocate extra memory and then align it at appropriate boundary.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China size = size + Adapter->desc_align;
080575042aba2197b425ebfd52061dea061a9aa1xy * DMA attributes set to no scatter/gather and 16 bit alignment
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate a new DMA handle for the transmit descriptor memory
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate memory to DMA data to and from the transmit
080575042aba2197b425ebfd52061dea061a9aa1xy * descriptors.
080575042aba2197b425ebfd52061dea061a9aa1xy * Initialize the entire transmit buffer descriptor area to zero
080575042aba2197b425ebfd52061dea061a9aa1xy * Memory has been allocated with the ddi_dma_mem_alloc call,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * but has not been aligned.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * We now align it on the appropriate boundary.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China templong = P2NPHASE((uintptr_t)tx_ring->tbd_area,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China Adapter->desc_align);
080575042aba2197b425ebfd52061dea061a9aa1xy } /* alignment workaround */
080575042aba2197b425ebfd52061dea061a9aa1xy * Transmit buffer descriptor memory allocation succeeded
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocates DMA resources for the memory that was allocated by
080575042aba2197b425ebfd52061dea061a9aa1xy * the ddi_dma_mem_alloc call. The DMA resources then get bound to the
080575042aba2197b425ebfd52061dea061a9aa1xy * the memory address
080575042aba2197b425ebfd52061dea061a9aa1xy mystat = ddi_dma_addr_bind_handle(tx_ring->tbd_dma_handle,
080575042aba2197b425ebfd52061dea061a9aa1xy "Could not bind tbd dma resource in a single frag. "
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemse1000g_alloc_rx_descriptors(e1000g_rx_data_t *rx_data)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems Adapter = rx_data->rx_ring->adapter;
080575042aba2197b425ebfd52061dea061a9aa1xy * Memory allocation for the receive buffer descriptors.
25f2d433de915875c8393f0b0dc14aa155997ad0xy size = (sizeof (struct e1000_rx_desc)) * Adapter->rx_desc_num;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * Asking for aligned memory with DMA attributes set for suitable value
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China dma_attr.dma_attr_align = Adapter->desc_align;
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Allocate a new DMA handle for the receive descriptors
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate memory to DMA data to and from the receive
080575042aba2197b425ebfd52061dea061a9aa1xy * descriptors.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems mystat = ddi_dma_mem_alloc(rx_data->rbd_dma_handle,
080575042aba2197b425ebfd52061dea061a9aa1xy * Check if memory allocation succeeded and also if the
080575042aba2197b425ebfd52061dea061a9aa1xy * allocated memory is aligned correctly.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ((uintptr_t)rx_data->rbd_area & (Adapter->desc_align - 1))) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_mem_free(&rx_data->rbd_acc_handle);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_dma_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_free_handle(&rx_data->rbd_dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xy * Initialize the allocated receive descriptor memory to zero.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems bzero((caddr_t)rx_data->rbd_area, len);
25f2d433de915875c8393f0b0dc14aa155997ad0xy * If memory allocation did not succeed, do the alignment ourselves
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China size = size + Adapter->desc_align;
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Allocate a new DMA handle for the receive descriptor.
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocate memory to DMA data to and from the receive
080575042aba2197b425ebfd52061dea061a9aa1xy * descriptors.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems mystat = ddi_dma_mem_alloc(rx_data->rbd_dma_handle,
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_dma_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_free_handle(&rx_data->rbd_dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xy * Initialize the allocated receive descriptor memory to zero.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems bzero((caddr_t)rx_data->rbd_area, len);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems templong = P2NPHASE((uintptr_t)rx_data->rbd_area,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China Adapter->desc_align);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems templong += (uintptr_t)rx_data->rbd_area;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data->rbd_area = (struct e1000_rx_desc *)templong;
080575042aba2197b425ebfd52061dea061a9aa1xy } /* alignment workaround */
080575042aba2197b425ebfd52061dea061a9aa1xy * The memory allocation of the receive descriptors succeeded
080575042aba2197b425ebfd52061dea061a9aa1xy * Allocates DMA resources for the memory that was allocated by
080575042aba2197b425ebfd52061dea061a9aa1xy * the ddi_dma_mem_alloc call.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems mystat = ddi_dma_addr_bind_handle(rx_data->rbd_dma_handle,
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems (struct as *)NULL, (caddr_t)rx_data->rbd_area,
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_acc_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_mem_free(&rx_data->rbd_acc_handle);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_dma_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_free_handle(&rx_data->rbd_dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xy "Could not bind rbd dma resource in a single frag. "
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems e1000g_free_rx_descriptors(rx_data);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data->rbd_dma_addr = cookie.dmac_laddress;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data->rbd_first = rx_data->rbd_area;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data->rbd_last = rx_data->rbd_first +
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemse1000g_free_rx_descriptors(e1000g_rx_data_t *rx_data)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_dma_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems (void) ddi_dma_unbind_handle(rx_data->rbd_dma_handle);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_acc_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_mem_free(&rx_data->rbd_acc_handle);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems if (rx_data->rbd_dma_handle != NULL) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ddi_dma_free_handle(&rx_data->rbd_dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
fe62dec3a38f1f79ffe68417df75dbbb58135bb7Chen-Liang Xu (void) ddi_dma_unbind_handle(tx_ring->tbd_dma_handle);
25f2d433de915875c8393f0b0dc14aa155997ad0xy * e1000g_alloc_packets - allocate DMA buffers for rx/tx
25f2d433de915875c8393f0b0dc14aa155997ad0xy * This routine allocates neccesary buffers for
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Transmit sw packet structure
25f2d433de915875c8393f0b0dc14aa155997ad0xy * DMA handle for Transmit
25f2d433de915875c8393f0b0dc14aa155997ad0xy * DMA buffer for Transmit
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Receive sw packet structure
25f2d433de915875c8393f0b0dc14aa155997ad0xy * DMA buffer for Receive
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data = Adapter->rx_ring->rx_data;
080575042aba2197b425ebfd52061dea061a9aa1xy "No enough dvma resource for Tx packets, "
080575042aba2197b425ebfd52061dea061a9aa1xy "trying to allocate dma buffers...\n");
080575042aba2197b425ebfd52061dea061a9aa1xy "Failed to allocate dma buffers for Tx packets\n");
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems result = e1000g_alloc_rx_packets(rx_data);
080575042aba2197b425ebfd52061dea061a9aa1xy "No enough dvma resource for Rx packets, "
080575042aba2197b425ebfd52061dea061a9aa1xy "trying to allocate dma buffers...\n");
080575042aba2197b425ebfd52061dea061a9aa1xy "Failed to allocate dma buffers for Rx packets\n");
25f2d433de915875c8393f0b0dc14aa155997ad0xystatic void
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_data = Adapter->rx_ring->rx_data;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China e1000g_free_rx_packets(rx_data, B_FALSE);
080575042aba2197b425ebfd52061dea061a9aa1xy "Could not allocate dvma buffer memory\n");
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
25f2d433de915875c8393f0b0dc14aa155997ad0xy dma_buffer_t *buf, size_t size, ddi_dma_attr_t *p_dma_attr)
0c35404fb68510fa79a18fcd7581fe676bad4882changqing li - Sun Microsystems - Beijing China len, DDI_DMA_RDWR | DDI_DMA_STREAMING,
fe62dec3a38f1f79ffe68417df75dbbb58135bb7Chen-Liang Xu (void) ddi_dma_unbind_handle(buf->dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xy "Could not bind buffer as a single frag. "
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * e1000g_alloc_dma_buffer_82546 - allocate a dma buffer along with all
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * necessary handles. Same as e1000g_alloc_dma_buffer() except ensure
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * that buffer that doesn't cross a 64k boundary.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinae1000g_alloc_dma_buffer_82546(struct e1000g *Adapter,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China dma_buffer_t *buf, size_t size, ddi_dma_attr_t *p_dma_attr)
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China dev_info_t *devinfo;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_cookie_t cookie;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China uint_t count;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (e1000g_force_detach)
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China devinfo = Adapter->priv_dip;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China devinfo = Adapter->dip;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China mystat = ddi_dma_alloc_handle(devinfo,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China DDI_DMA_DONTWAIT, 0,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China &buf->dma_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (mystat != DDI_SUCCESS) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->dma_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China "Could not allocate dma buffer handle: %d\n", mystat);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (DDI_FAILURE);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China mystat = e1000g_dma_mem_alloc_82546(buf, size, &len);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (mystat != DDI_SUCCESS) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->acc_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->address = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->dma_handle != NULL) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_free_handle(&buf->dma_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->dma_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China "Could not allocate dma buffer memory: %d\n", mystat);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (DDI_FAILURE);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China mystat = ddi_dma_addr_bind_handle(buf->dma_handle,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China (struct as *)NULL,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->address,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China len, DDI_DMA_READ | DDI_DMA_STREAMING,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China DDI_DMA_DONTWAIT, 0, &cookie, &count);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (mystat != DDI_SUCCESS) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->acc_handle != NULL) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_mem_free(&buf->acc_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->acc_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->address = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->dma_handle != NULL) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_free_handle(&buf->dma_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->dma_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China "Could not bind buffer dma handle: %d\n", mystat);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (DDI_FAILURE);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ASSERT(count == 1);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (count != 1) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->dma_handle != NULL) {
57ef6f696a98dddd9434e80a654341edd5316bf1guoqing zhu - Sun Microsystems - Beijing China (void) ddi_dma_unbind_handle(buf->dma_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->acc_handle != NULL) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_mem_free(&buf->acc_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->acc_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->address = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (buf->dma_handle != NULL) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_free_handle(&buf->dma_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->dma_handle = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China "Could not bind buffer as a single frag. "
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China "Count = %d\n", count);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (DDI_FAILURE);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->dma_address = cookie.dmac_laddress;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->size = len;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China buf->len = 0;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (DDI_SUCCESS);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * e1000g_dma_mem_alloc_82546 - allocate a dma buffer, making up to
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * ALLOC_RETRY attempts to get a buffer that doesn't cross a 64k boundary.
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinae1000g_dma_mem_alloc_82546(dma_buffer_t *buf, size_t size, size_t *len)
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China#define ALLOC_RETRY 10
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_acc_handle_t hold[ALLOC_RETRY];
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China while (cnt < ALLOC_RETRY) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China hold[cnt] = NULL;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China /* allocate memory */
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China stat = ddi_dma_mem_alloc(buf->dma_handle, size,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China &e1000g_buf_acc_attr, DDI_DMA_STREAMING, DDI_DMA_DONTWAIT,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China 0, &buf->address, len, &buf->acc_handle);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (stat != DDI_SUCCESS) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * Check 64k bounday:
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * if it is bad, hold it and retry
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * if it is good, exit loop
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (e1000g_cross_64k_bound(buf->address, *len)) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China hold[cnt] = buf->acc_handle;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China stat = DDI_FAILURE;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China /* Release any held buffers crossing 64k bounday */
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China for (--cnt; cnt >= 0; cnt--) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China if (hold[cnt])
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China ddi_dma_mem_free(&hold[cnt]);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (stat);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * e1000g_cross_64k_bound - If starting and ending address cross a 64k boundary
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China * return true; otherwise return false
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinastatic boolean_t
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing Chinae1000g_cross_64k_bound(void *addr, uintptr_t len)
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China uintptr_t start = (uintptr_t)addr;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China uintptr_t end = start + len - 1;
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China return (((start ^ end) >> 16) == 0 ? B_FALSE : B_TRUE);
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
fe62dec3a38f1f79ffe68417df75dbbb58135bb7Chen-Liang Xu (void) ddi_dma_unbind_handle(buf->dma_handle);
080575042aba2197b425ebfd52061dea061a9aa1xy * Memory allocation for the Transmit software structure, the transmit
080575042aba2197b425ebfd52061dea061a9aa1xy * software packet. This structure stores all the relevant information
080575042aba2197b425ebfd52061dea061a9aa1xy * for transmitting a single packet.
080575042aba2197b425ebfd52061dea061a9aa1xy * Pre-allocate dma handles for transmit. These dma handles
080575042aba2197b425ebfd52061dea061a9aa1xy * will be dynamically bound to the data buffers passed down
080575042aba2197b425ebfd52061dea061a9aa1xy * from the upper layers at the time of transmitting. The
080575042aba2197b425ebfd52061dea061a9aa1xy * dynamic binding only applies for the packets that are larger
080575042aba2197b425ebfd52061dea061a9aa1xy * than the tx_bcopy_thresh.
080575042aba2197b425ebfd52061dea061a9aa1xy * Pre-allocate transmit buffers for small packets that the
080575042aba2197b425ebfd52061dea061a9aa1xy * size is less than tx_bcopy_thresh. The data of those small
080575042aba2197b425ebfd52061dea061a9aa1xy * packets will be bcopy() to the transmit buffers instead of
080575042aba2197b425ebfd52061dea061a9aa1xy * using dynamical DMA binding. For small packets, bcopy will
080575042aba2197b425ebfd52061dea061a9aa1xy * bring better performance than DMA binding.
080575042aba2197b425ebfd52061dea061a9aa1xy "Allocate Tx buffer fail\n");
080575042aba2197b425ebfd52061dea061a9aa1xy } /* for */
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing Chinae1000g_increase_rx_packets(e1000g_rx_data_t *rx_data)
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China p_rx_sw_packet_t packet;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China p_rx_sw_packet_t cur, next;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China struct e1000g *Adapter;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China ddi_dma_attr_t dma_attr;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China Adapter = rx_data->rx_ring->adapter;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China dma_attr = e1000g_buf_dma_attr;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China dma_attr.dma_attr_align = Adapter->rx_buf_align;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China for (i = 0; i < RX_FREELIST_INCREASE_SIZE; i++) {
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China packet = e1000g_alloc_rx_sw_packet(rx_data, &dma_attr);
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China if (packet == NULL)
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China packet->next = cur;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China cur = packet;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China Adapter->rx_freelist_num += i;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China rx_data->avail_freepkt += i;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China while (cur != NULL) {
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China QUEUE_PUSH_TAIL(&rx_data->free_list, &cur->Link);
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China next = cur->next;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China cur->next = rx_data->packet_area;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China rx_data->packet_area = cur;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China return (DDI_SUCCESS);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemse1000g_alloc_rx_packets(e1000g_rx_data_t *rx_data)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems Adapter = rx_data->rx_ring->adapter;
25f2d433de915875c8393f0b0dc14aa155997ad0xy * Allocate memory for the rx_sw_packet structures. Each one of these
080575042aba2197b425ebfd52061dea061a9aa1xy * structures will contain a virtual and physical address to an actual
25f2d433de915875c8393f0b0dc14aa155997ad0xy * receive buffer in host memory. Since we use one rx_sw_packet per
25f2d433de915875c8393f0b0dc14aa155997ad0xy * received packet, the maximum number of rx_sw_packet that we'll
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems * need is equal to the number of receive descriptors plus the freelist
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China packet_num = Adapter->rx_desc_num + RX_FREELIST_INCREASE_SIZE;
080575042aba2197b425ebfd52061dea061a9aa1xy for (i = 0; i < packet_num; i++) {
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems packet = e1000g_alloc_rx_sw_packet(rx_data, &dma_attr);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems packet->next = rx_data->packet_area;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China Adapter->rx_freelist_num = RX_FREELIST_INCREASE_SIZE;
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China e1000g_free_rx_packets(rx_data, B_TRUE);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemse1000g_alloc_rx_sw_packet(e1000g_rx_data_t *rx_data, ddi_dma_attr_t *p_dma_attr)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems Adapter = rx_data->rx_ring->adapter;
25f2d433de915875c8393f0b0dc14aa155997ad0xy packet = kmem_zalloc(sizeof (rx_sw_packet_t), KM_NOSLEEP);
080575042aba2197b425ebfd52061dea061a9aa1xy "Cound not allocate memory for Rx SwPacket\n");
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China if (Adapter->mem_workaround_82546 &&
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China ((Adapter->shared.mac.type == e1000_82545) ||
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China (Adapter->shared.mac.type == e1000_82546) ||
3d15c084da89e6f689f1804f3e2e600e5376c4e1chenlu chen - Sun Microsystems - Beijing China (Adapter->shared.mac.type == e1000_82546_rev_3))) {
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China mystat = e1000g_alloc_dma_buffer_82546(Adapter,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China rx_buf, Adapter->rx_buffer_size, p_dma_attr);
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China mystat = e1000g_alloc_dma_buffer(Adapter,
ede5269ebe7fa3787cc9b58c3781b639c578f93dchenlu chen - Sun Microsystems - Beijing China rx_buf, Adapter->rx_buffer_size, p_dma_attr);
080575042aba2197b425ebfd52061dea061a9aa1xy "Failed to allocate Rx buffer\n");
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems packet->rx_data = (caddr_t)rx_data;
080575042aba2197b425ebfd52061dea061a9aa1xy * esballoc is changed to desballoc which
080575042aba2197b425ebfd52061dea061a9aa1xy * is undocumented call but as per sun,
080575042aba2197b425ebfd52061dea061a9aa1xy * we can use it. It gives better efficiency.
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystemse1000g_free_rx_sw_packet(p_rx_sw_packet_t packet, boolean_t full_release)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_buf->size += E1000G_IPALIGNROOM;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems rx_buf->address -= E1000G_IPALIGNROOM;
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing Chinae1000g_free_rx_packets(e1000g_rx_data_t *rx_data, boolean_t full_release)
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems p_rx_sw_packet_t packet, next_packet;
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems mutex_enter(&e1000g_rx_detach_lock);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems ref_cnt = atomic_dec_32_nv(&packet->ref_cnt);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems atomic_inc_32(&rx_data->pending_count);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems atomic_inc_32(&e1000g_mblks_pending);
3fb4efef75bbb3a06a68d5ff59c33df03c73f6c9changqing li - Sun Microsystems - Beijing China e1000g_free_rx_sw_packet(packet, full_release);
54e0d7a5e8285a3f01a0db8db1246ac7cac94d81Miles Xu, Sun Microsystems mutex_exit(&e1000g_rx_detach_lock);
080575042aba2197b425ebfd52061dea061a9aa1xystatic void
080575042aba2197b425ebfd52061dea061a9aa1xy /* Free the Tx DMA handle for dynamical binding */
080575042aba2197b425ebfd52061dea061a9aa1xy * If the dma handle is NULL, then we don't
080575042aba2197b425ebfd52061dea061a9aa1xy * need to check the packets left. For they
080575042aba2197b425ebfd52061dea061a9aa1xy * have not been initialized or have been freed.
25f2d433de915875c8393f0b0dc14aa155997ad0xy * e1000g_release_dma_resources - release allocated DMA resources
25f2d433de915875c8393f0b0dc14aa155997ad0xy * This function releases any pending buffers that has been
25f2d433de915875c8393f0b0dc14aa155997ad0xy * previously allocated
fe62dec3a38f1f79ffe68417df75dbbb58135bb7Chen-Liang Xu/* ARGSUSED */