09fe63205c
- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs. These are available as t3_tom and t4_tom modules that augment cxgb(4) and cxgbe(4) respectively. The cxgb/cxgbe drivers continue to work as usual with or without these extra features. - iWARP driver for Terminator 3 ASIC (kernel verbs). T4 iWARP in the works and will follow soon. Build-tested with make universe. 30s overview ============ What interfaces support TCP offload? Look for TOE4 and/or TOE6 in the capabilities of an interface: # ifconfig -m | grep TOE Enable/disable TCP offload on an interface (just like any other ifnet capability): # ifconfig cxgbe0 toe # ifconfig cxgbe0 -toe Which connections are offloaded? Look for toe4 and/or toe6 in the output of netstat and sockstat: # netstat -np tcp | grep toe # sockstat -46c | grep toe Reviewed by: bz, gnn Sponsored by: Chelsio communications. MFC after: ~3 months (after 9.1, and after ensuring MFC is feasible)
159 lines
3.6 KiB
C
159 lines
3.6 KiB
C
/*
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* Copyright (C) 2003-2006 Chelsio Communications. All rights reserved.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this
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* release for licensing terms and conditions.
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*
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* $FreeBSD$
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*/
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#ifndef _CXGB3_OFFLOAD_CTL_DEFS_H
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#define _CXGB3_OFFLOAD_CTL_DEFS_H
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enum {
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GET_MAX_OUTSTANDING_WR,
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GET_TX_MAX_CHUNK,
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GET_TID_RANGE,
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GET_STID_RANGE,
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GET_RTBL_RANGE,
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GET_L2T_CAPACITY,
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GET_MTUS,
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GET_WR_LEN,
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GET_IFF_FROM_MAC,
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GET_DDP_PARAMS,
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GET_PORTS,
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ULP_ISCSI_GET_PARAMS,
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ULP_ISCSI_SET_PARAMS,
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RDMA_GET_PARAMS,
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RDMA_CQ_OP,
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RDMA_CQ_SETUP,
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RDMA_CQ_DISABLE,
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RDMA_CTRL_QP_SETUP,
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RDMA_GET_MEM,
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FAILOVER = 30,
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FAILOVER_DONE = 31,
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FAILOVER_CLEAR = 32,
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GET_CPUIDX_OF_QSET = 40,
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GET_RX_PAGE_INFO = 50,
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};
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/*
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* Structure used to describe a TID range. Valid TIDs are [base, base+num).
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*/
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struct tid_range {
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unsigned int base; /* first TID */
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unsigned int num; /* number of TIDs in range */
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};
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/*
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* Structure used to request the size and contents of the MTU table.
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*/
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struct mtutab {
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unsigned int size; /* # of entries in the MTU table */
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const unsigned short *mtus; /* the MTU table values */
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};
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/*
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* Structure used to request the ifnet that owns a given MAC address.
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*/
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struct iff_mac {
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struct ifnet *dev;
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const unsigned char *mac_addr;
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u16 vlan_tag;
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};
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struct pci_dev;
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/*
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* Structure used to request the TCP DDP parameters.
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*/
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struct ddp_params {
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unsigned int llimit; /* TDDP region start address */
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unsigned int ulimit; /* TDDP region end address */
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unsigned int tag_mask; /* TDDP tag mask */
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struct pci_dev *pdev;
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};
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struct adap_ports {
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unsigned int nports; /* number of ports on this adapter */
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struct ifnet *lldevs[MAX_NPORTS];
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};
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/*
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* Structure used to return information to the iscsi layer.
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*/
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struct ulp_iscsi_info {
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unsigned int offset;
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unsigned int llimit;
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unsigned int ulimit;
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unsigned int tagmask;
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unsigned int pgsz3;
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unsigned int pgsz2;
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unsigned int pgsz1;
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unsigned int pgsz0;
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unsigned int max_rxsz;
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unsigned int max_txsz;
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struct pci_dev *pdev;
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};
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/*
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* Offload TX/RX page information.
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*/
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struct ofld_page_info {
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unsigned int page_size; /* Page size, should be a power of 2 */
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unsigned int num; /* Number of pages */
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};
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/*
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* Structure used to return information to the RDMA layer.
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*/
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struct rdma_info {
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unsigned int tpt_base; /* TPT base address */
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unsigned int tpt_top; /* TPT last entry address */
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unsigned int pbl_base; /* PBL base address */
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unsigned int pbl_top; /* PBL last entry address */
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unsigned int rqt_base; /* RQT base address */
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unsigned int rqt_top; /* RQT last entry address */
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unsigned int udbell_len; /* user doorbell region length */
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unsigned long udbell_physbase; /* user doorbell physical start addr */
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void *kdb_addr; /* kernel doorbell register address */
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struct device *pdev; /* associated PCI device */
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};
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/*
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* Structure used to request an operation on an RDMA completion queue.
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*/
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struct rdma_cq_op {
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unsigned int id;
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unsigned int op;
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unsigned int credits;
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};
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/*
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* Structure used to setup RDMA completion queues.
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*/
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struct rdma_cq_setup {
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unsigned int id;
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unsigned long long base_addr;
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unsigned int size;
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unsigned int credits;
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unsigned int credit_thres;
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unsigned int ovfl_mode;
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};
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/*
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* Structure used to setup the RDMA control egress context.
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*/
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struct rdma_ctrlqp_setup {
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unsigned long long base_addr;
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unsigned int size;
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};
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#endif /* _CXGB3_OFFLOAD_CTL_DEFS_H */
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