168 lines
6.2 KiB
C
168 lines
6.2 KiB
C
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/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _CQ_ENET_DESC_H_
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#define _CQ_ENET_DESC_H_
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#include "cq_desc.h"
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/* Ethernet completion queue descriptor: 16B */
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struct cq_enet_wq_desc {
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__le16 completed_index;
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__le16 q_number;
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u8 reserved[11];
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u8 type_color;
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};
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static inline void cq_enet_wq_desc_dec(struct cq_enet_wq_desc *desc,
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u8 *type, u8 *color, u16 *q_number, u16 *completed_index)
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{
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cq_desc_dec((struct cq_desc *)desc, type,
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color, q_number, completed_index);
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}
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/* Completion queue descriptor: Ethernet receive queue, 16B */
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struct cq_enet_rq_desc {
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__le16 completed_index_flags;
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__le16 q_number_rss_type_flags;
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__le32 rss_hash;
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__le16 bytes_written_flags;
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__le16 vlan;
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__le16 checksum_fcoe;
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u8 flags;
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u8 type_color;
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};
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#define CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT (0x1 << 12)
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#define CQ_ENET_RQ_DESC_FLAGS_FCOE (0x1 << 13)
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#define CQ_ENET_RQ_DESC_FLAGS_EOP (0x1 << 14)
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#define CQ_ENET_RQ_DESC_FLAGS_SOP (0x1 << 15)
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#define CQ_ENET_RQ_DESC_RSS_TYPE_BITS 4
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#define CQ_ENET_RQ_DESC_RSS_TYPE_MASK \
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((1 << CQ_ENET_RQ_DESC_RSS_TYPE_BITS) - 1)
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#define CQ_ENET_RQ_DESC_RSS_TYPE_NONE 0
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#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 1
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#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 2
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#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 3
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#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 4
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#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 5
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#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 6
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#define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14)
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#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 14
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#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK \
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((1 << CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS) - 1)
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#define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED (0x1 << 14)
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#define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED (0x1 << 15)
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#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS 4
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#define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \
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((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1)
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#define CQ_ENET_RQ_DESC_FCOE_EOF_BITS 8
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#define CQ_ENET_RQ_DESC_FCOE_EOF_MASK \
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((1 << CQ_ENET_RQ_DESC_FCOE_EOF_BITS) - 1)
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#define CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT 8
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#define CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK (0x1 << 0)
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#define CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK (0x1 << 0)
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#define CQ_ENET_RQ_DESC_FLAGS_UDP (0x1 << 1)
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#define CQ_ENET_RQ_DESC_FCOE_ENC_ERROR (0x1 << 1)
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#define CQ_ENET_RQ_DESC_FLAGS_TCP (0x1 << 2)
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#define CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK (0x1 << 3)
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#define CQ_ENET_RQ_DESC_FLAGS_IPV6 (0x1 << 4)
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#define CQ_ENET_RQ_DESC_FLAGS_IPV4 (0x1 << 5)
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#define CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT (0x1 << 6)
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#define CQ_ENET_RQ_DESC_FLAGS_FCS_OK (0x1 << 7)
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static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc,
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u8 *type, u8 *color, u16 *q_number, u16 *completed_index,
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u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type,
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u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error,
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u8 *vlan_stripped, u16 *vlan, u16 *checksum, u8 *fcoe_sof,
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u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof,
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u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok,
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u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok)
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{
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u16 completed_index_flags = le16_to_cpu(desc->completed_index_flags);
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u16 q_number_rss_type_flags =
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le16_to_cpu(desc->q_number_rss_type_flags);
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u16 bytes_written_flags = le16_to_cpu(desc->bytes_written_flags);
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cq_desc_dec((struct cq_desc *)desc, type,
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color, q_number, completed_index);
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*ingress_port = (completed_index_flags &
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CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT) ? 1 : 0;
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*fcoe = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_FCOE) ?
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1 : 0;
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*eop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_EOP) ?
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1 : 0;
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*sop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_SOP) ?
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1 : 0;
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*rss_type = (u8)((q_number_rss_type_flags >> CQ_DESC_Q_NUM_BITS) &
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CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
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*csum_not_calc = (q_number_rss_type_flags &
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CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ? 1 : 0;
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*rss_hash = le32_to_cpu(desc->rss_hash);
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*bytes_written = bytes_written_flags &
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CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
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*packet_error = (bytes_written_flags &
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CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ? 1 : 0;
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*vlan_stripped = (bytes_written_flags &
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CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0;
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*vlan = le16_to_cpu(desc->vlan);
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if (*fcoe) {
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*fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) &
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CQ_ENET_RQ_DESC_FCOE_SOF_MASK);
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*fcoe_fc_crc_ok = (desc->flags &
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CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK) ? 1 : 0;
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*fcoe_enc_error = (desc->flags &
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CQ_ENET_RQ_DESC_FCOE_ENC_ERROR) ? 1 : 0;
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*fcoe_eof = (u8)((desc->checksum_fcoe >>
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CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT) &
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CQ_ENET_RQ_DESC_FCOE_EOF_MASK);
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*checksum = 0;
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} else {
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*fcoe_sof = 0;
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*fcoe_fc_crc_ok = 0;
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*fcoe_enc_error = 0;
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*fcoe_eof = 0;
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*checksum = le16_to_cpu(desc->checksum_fcoe);
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}
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*tcp_udp_csum_ok =
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(desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ? 1 : 0;
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*udp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_UDP) ? 1 : 0;
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*tcp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP) ? 1 : 0;
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*ipv4_csum_ok =
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(desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ? 1 : 0;
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*ipv6 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV6) ? 1 : 0;
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*ipv4 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4) ? 1 : 0;
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*ipv4_fragment =
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(desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT) ? 1 : 0;
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*fcs_ok = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_FCS_OK) ? 1 : 0;
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}
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#endif /* _CQ_ENET_DESC_H_ */
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