chelsio/cxgb3/cxgb3_ctl_defs.h

0001 /*
0002  * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved.
0003  *
0004  * This software is available to you under a choice of one of two
0005  * licenses.  You may choose to be licensed under the terms of the GNU
0006  * General Public License (GPL) Version 2, available from the file
0007  * COPYING in the main directory of this source tree, or the
0008  * OpenIB.org BSD license below:
0009  *
0010  *     Redistribution and use in source and binary forms, with or
0011  *     without modification, are permitted provided that the following
0012  *     conditions are met:
0013  *
0014  *      - Redistributions of source code must retain the above
0015  *        copyright notice, this list of conditions and the following
0016  *        disclaimer.
0017  *
0018  *      - Redistributions in binary form must reproduce the above
0019  *        copyright notice, this list of conditions and the following
0020  *        disclaimer in the documentation and/or other materials
0021  *        provided with the distribution.
0022  *
0023  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0024  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0025  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0026  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
0027  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
0028  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
0029  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0030  * SOFTWARE.
0031  */
0032 #ifndef _CXGB3_OFFLOAD_CTL_DEFS_H
0033 #define _CXGB3_OFFLOAD_CTL_DEFS_H
0034
0035 enum {
0036     GET_MAX_OUTSTANDING_WR  = 0,
0037     GET_TX_MAX_CHUNK    = 1,
0038     GET_TID_RANGE       = 2,
0039     GET_STID_RANGE      = 3,
0040     GET_RTBL_RANGE      = 4,
0041     GET_L2T_CAPACITY    = 5,
0042     GET_MTUS        = 6,
0043     GET_WR_LEN      = 7,
0044     GET_IFF_FROM_MAC    = 8,
0045     GET_DDP_PARAMS      = 9,
0046     GET_PORTS       = 10,
0047
0048     ULP_ISCSI_GET_PARAMS    = 11,
0049     ULP_ISCSI_SET_PARAMS    = 12,
0050
0051     RDMA_GET_PARAMS     = 13,
0052     RDMA_CQ_OP      = 14,
0053     RDMA_CQ_SETUP       = 15,
0054     RDMA_CQ_DISABLE     = 16,
0055     RDMA_CTRL_QP_SETUP  = 17,
0056     RDMA_GET_MEM        = 18,
0057     RDMA_GET_MIB        = 19,
0058
0059     GET_RX_PAGE_INFO    = 50,
0060     GET_ISCSI_IPV4ADDR  = 51,
0061
0062     GET_EMBEDDED_INFO   = 70,
0063 };
0064
0065 /*
0066  * Structure used to describe a TID range.  Valid TIDs are [base, base+num).
0067  */
0068 struct tid_range {
0069     unsigned int base;  /* first TID */
0070     unsigned int num;   /* number of TIDs in range */
0071 };
0072
0073 /*
0074  * Structure used to request the size and contents of the MTU table.
0075  */
0076 struct mtutab {
0077     unsigned int size;  /* # of entries in the MTU table */
0078     const unsigned short *mtus; /* the MTU table values */
0079 };
0080
0081 struct net_device;
0082
0083 /*
0084  * Structure used to request the adapter net_device owning a given MAC address.
0085  */
0086 struct iff_mac {
0087     struct net_device *dev; /* the net_device */
0088     const unsigned char *mac_addr;  /* MAC address to lookup */
0089     u16 vlan_tag;
0090 };
0091
0092 /* Structure used to request a port's iSCSI IPv4 address */
0093 struct iscsi_ipv4addr {
0094     struct net_device *dev; /* the net_device */
0095     __be32 ipv4addr;    /* the return iSCSI IPv4 address */
0096 };
0097
0098 struct pci_dev;
0099
0100 /*
0101  * Structure used to request the TCP DDP parameters.
0102  */
0103 struct ddp_params {
0104     unsigned int llimit;    /* TDDP region start address */
0105     unsigned int ulimit;    /* TDDP region end address */
0106     unsigned int tag_mask;  /* TDDP tag mask */
0107     struct pci_dev *pdev;
0108 };
0109
0110 struct adap_ports {
0111     unsigned int nports;    /* number of ports on this adapter */
0112     struct net_device *lldevs[2];
0113 };
0114
0115 /*
0116  * Structure used to return information to the iscsi layer.
0117  */
0118 struct ulp_iscsi_info {
0119     unsigned int offset;
0120     unsigned int llimit;
0121     unsigned int ulimit;
0122     unsigned int tagmask;
0123     u8 pgsz_factor[4];
0124     unsigned int max_rxsz;
0125     unsigned int max_txsz;
0126     struct pci_dev *pdev;
0127 };
0128
0129 /*
0130  * Structure used to return information to the RDMA layer.
0131  */
0132 struct rdma_info {
0133     unsigned int tpt_base;  /* TPT base address */
0134     unsigned int tpt_top;   /* TPT last entry address */
0135     unsigned int pbl_base;  /* PBL base address */
0136     unsigned int pbl_top;   /* PBL last entry address */
0137     unsigned int rqt_base;  /* RQT base address */
0138     unsigned int rqt_top;   /* RQT last entry address */
0139     unsigned int udbell_len;    /* user doorbell region length */
0140     unsigned long udbell_physbase;  /* user doorbell physical start addr */
0141     void __iomem *kdb_addr; /* kernel doorbell register address */
0142     struct pci_dev *pdev;   /* associated PCI device */
0143 };
0144
0145 /*
0146  * Structure used to request an operation on an RDMA completion queue.
0147  */
0148 struct rdma_cq_op {
0149     unsigned int id;
0150     unsigned int op;
0151     unsigned int credits;
0152 };
0153
0154 /*
0155  * Structure used to setup RDMA completion queues.
0156  */
0157 struct rdma_cq_setup {
0158     unsigned int id;
0159     unsigned long long base_addr;
0160     unsigned int size;
0161     unsigned int credits;
0162     unsigned int credit_thres;
0163     unsigned int ovfl_mode;
0164 };
0165
0166 /*
0167  * Structure used to setup the RDMA control egress context.
0168  */
0169 struct rdma_ctrlqp_setup {
0170     unsigned long long base_addr;
0171     unsigned int size;
0172 };
0173
0174 /*
0175  * Offload TX/RX page information.
0176  */
0177 struct ofld_page_info {
0178     unsigned int page_size;  /* Page size, should be a power of 2 */
0179     unsigned int num;        /* Number of pages */
0180 };
0181
0182 /*
0183  * Structure used to get firmware and protocol engine versions.
0184  */
0185 struct ch_embedded_info {
0186     u32 fw_vers;
0187     u32 tp_vers;
0188 };
0189 #endif              /* _CXGB3_OFFLOAD_CTL_DEFS_H */