| /* |
| * 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_EXCH_DESC_H_ |
| #define _CQ_EXCH_DESC_H_ |
| |
| #include "cq_desc.h" |
| |
| /* Exchange completion queue descriptor: 16B */ |
| struct cq_exch_wq_desc { |
| u16 completed_index; |
| u16 q_number; |
| u16 exchange_id; |
| u8 tmpl; |
| u8 reserved0; |
| u32 reserved1; |
| u8 exch_status; |
| u8 reserved2[2]; |
| u8 type_color; |
| }; |
| |
| #define CQ_EXCH_WQ_STATUS_BITS 2 |
| #define CQ_EXCH_WQ_STATUS_MASK ((1 << CQ_EXCH_WQ_STATUS_BITS) - 1) |
| |
| enum cq_exch_status_types { |
| CQ_EXCH_WQ_STATUS_TYPE_COMPLETE = 0, |
| CQ_EXCH_WQ_STATUS_TYPE_ABORT = 1, |
| CQ_EXCH_WQ_STATUS_TYPE_SGL_EOF = 2, |
| CQ_EXCH_WQ_STATUS_TYPE_TMPL_ERR = 3, |
| }; |
| |
| static inline void cq_exch_wq_desc_dec(struct cq_exch_wq_desc *desc_ptr, |
| u8 *type, |
| u8 *color, |
| u16 *q_number, |
| u16 *completed_index, |
| u8 *exch_status) |
| { |
| cq_desc_dec((struct cq_desc *)desc_ptr, type, |
| color, q_number, completed_index); |
| *exch_status = desc_ptr->exch_status & CQ_EXCH_WQ_STATUS_MASK; |
| } |
| |
| struct cq_fcp_rq_desc { |
| u16 completed_index_eop_sop_prt; |
| u16 q_number; |
| u16 exchange_id; |
| u16 tmpl; |
| u16 bytes_written; |
| u16 vlan; |
| u8 sof; |
| u8 eof; |
| u8 fcs_fer_fck; |
| u8 type_color; |
| }; |
| |
| #define CQ_FCP_RQ_DESC_FLAGS_SOP (1 << 15) |
| #define CQ_FCP_RQ_DESC_FLAGS_EOP (1 << 14) |
| #define CQ_FCP_RQ_DESC_FLAGS_PRT (1 << 12) |
| #define CQ_FCP_RQ_DESC_TMPL_MASK 0x1f |
| #define CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK 0x3fff |
| #define CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT 14 |
| #define CQ_FCP_RQ_DESC_PACKET_ERR_MASK (1 << CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT) |
| #define CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT 15 |
| #define CQ_FCP_RQ_DESC_VS_STRIPPED_MASK (1 << CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT) |
| #define CQ_FCP_RQ_DESC_FC_CRC_OK_MASK 0x1 |
| #define CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT 1 |
| #define CQ_FCP_RQ_DESC_FCOE_ERR_MASK (1 << CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT) |
| #define CQ_FCP_RQ_DESC_FCS_OK_SHIFT 7 |
| #define CQ_FCP_RQ_DESC_FCS_OK_MASK (1 << CQ_FCP_RQ_DESC_FCS_OK_SHIFT) |
| |
| static inline void cq_fcp_rq_desc_dec(struct cq_fcp_rq_desc *desc_ptr, |
| u8 *type, |
| u8 *color, |
| u16 *q_number, |
| u16 *completed_index, |
| u8 *eop, |
| u8 *sop, |
| u8 *fck, |
| u16 *exchange_id, |
| u16 *tmpl, |
| u32 *bytes_written, |
| u8 *sof, |
| u8 *eof, |
| u8 *ingress_port, |
| u8 *packet_err, |
| u8 *fcoe_err, |
| u8 *fcs_ok, |
| u8 *vlan_stripped, |
| u16 *vlan) |
| { |
| cq_desc_dec((struct cq_desc *)desc_ptr, type, |
| color, q_number, completed_index); |
| *eop = (desc_ptr->completed_index_eop_sop_prt & |
| CQ_FCP_RQ_DESC_FLAGS_EOP) ? 1 : 0; |
| *sop = (desc_ptr->completed_index_eop_sop_prt & |
| CQ_FCP_RQ_DESC_FLAGS_SOP) ? 1 : 0; |
| *ingress_port = |
| (desc_ptr->completed_index_eop_sop_prt & |
| CQ_FCP_RQ_DESC_FLAGS_PRT) ? 1 : 0; |
| *exchange_id = desc_ptr->exchange_id; |
| *tmpl = desc_ptr->tmpl & CQ_FCP_RQ_DESC_TMPL_MASK; |
| *bytes_written = |
| desc_ptr->bytes_written & CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK; |
| *packet_err = |
| (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_PACKET_ERR_MASK) >> |
| CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT; |
| *vlan_stripped = |
| (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_VS_STRIPPED_MASK) >> |
| CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT; |
| *vlan = desc_ptr->vlan; |
| *sof = desc_ptr->sof; |
| *fck = desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FC_CRC_OK_MASK; |
| *fcoe_err = (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCOE_ERR_MASK) >> |
| CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT; |
| *eof = desc_ptr->eof; |
| *fcs_ok = |
| (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCS_OK_MASK) >> |
| CQ_FCP_RQ_DESC_FCS_OK_SHIFT; |
| } |
| |
| struct cq_sgl_desc { |
| u16 exchange_id; |
| u16 q_number; |
| u32 active_burst_offset; |
| u32 tot_data_bytes; |
| u16 tmpl; |
| u8 sgl_err; |
| u8 type_color; |
| }; |
| |
| enum cq_sgl_err_types { |
| CQ_SGL_ERR_NO_ERROR = 0, |
| CQ_SGL_ERR_OVERFLOW, /* data ran beyond end of SGL */ |
| CQ_SGL_ERR_SGL_LCL_ADDR_ERR, /* sgl access to local vnic addr illegal*/ |
| CQ_SGL_ERR_ADDR_RSP_ERR, /* sgl address error */ |
| CQ_SGL_ERR_DATA_RSP_ERR, /* sgl data rsp error */ |
| CQ_SGL_ERR_CNT_ZERO_ERR, /* SGL count is 0 */ |
| CQ_SGL_ERR_CNT_MAX_ERR, /* SGL count is larger than supported */ |
| CQ_SGL_ERR_ORDER_ERR, /* frames recv on both ports, order err */ |
| CQ_SGL_ERR_DATA_LCL_ADDR_ERR,/* sgl data buf to local vnic addr ill */ |
| CQ_SGL_ERR_HOST_CQ_ERR, /* host cq entry to local vnic addr ill */ |
| }; |
| |
| #define CQ_SGL_SGL_ERR_MASK 0x1f |
| #define CQ_SGL_TMPL_MASK 0x1f |
| |
| static inline void cq_sgl_desc_dec(struct cq_sgl_desc *desc_ptr, |
| u8 *type, |
| u8 *color, |
| u16 *q_number, |
| u16 *exchange_id, |
| u32 *active_burst_offset, |
| u32 *tot_data_bytes, |
| u16 *tmpl, |
| u8 *sgl_err) |
| { |
| /* Cheat a little by assuming exchange_id is the same as completed |
| index */ |
| cq_desc_dec((struct cq_desc *)desc_ptr, type, color, q_number, |
| exchange_id); |
| *active_burst_offset = desc_ptr->active_burst_offset; |
| *tot_data_bytes = desc_ptr->tot_data_bytes; |
| *tmpl = desc_ptr->tmpl & CQ_SGL_TMPL_MASK; |
| *sgl_err = desc_ptr->sgl_err & CQ_SGL_SGL_ERR_MASK; |
| } |
| |
| #endif /* _CQ_EXCH_DESC_H_ */ |
