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