diff options
Diffstat (limited to 'drivers/infiniband/hw/i40iw/i40iw_puda.h')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_puda.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.h b/drivers/infiniband/hw/i40iw/i40iw_puda.h new file mode 100644 index 000000000..52bf7826c --- /dev/null +++ b/drivers/infiniband/hw/i40iw/i40iw_puda.h @@ -0,0 +1,183 @@ +/******************************************************************************* +* +* Copyright (c) 2015-2016 Intel Corporation. All rights reserved. +* +* This software is available to you under a choice of one of two +* licenses. You may choose to be licensed under the terms of the GNU +* General Public License (GPL) Version 2, available from the file +* COPYING in the main directory of this source tree, or the +* OpenFabrics.org BSD license below: +* +* Redistribution and use in source and binary forms, with or +* without modification, are permitted provided that the following +* conditions are met: +* +* - Redistributions of source code must retain the above +* copyright notice, this list of conditions and the following +* disclaimer. +* +* - Redistributions in binary form must reproduce the above +* copyright notice, this list of conditions and the following +* disclaimer in the documentation and/or other materials +* provided with the distribution. +* +* 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 I40IW_PUDA_H +#define I40IW_PUDA_H + +#define I40IW_IEQ_MPA_FRAMING 6 + +struct i40iw_sc_dev; +struct i40iw_sc_qp; +struct i40iw_sc_cq; + +enum puda_resource_type { + I40IW_PUDA_RSRC_TYPE_ILQ = 1, + I40IW_PUDA_RSRC_TYPE_IEQ +}; + +enum puda_rsrc_complete { + PUDA_CQ_CREATED = 1, + PUDA_QP_CREATED, + PUDA_TX_COMPLETE, + PUDA_RX_COMPLETE, + PUDA_HASH_CRC_COMPLETE +}; + +struct i40iw_puda_completion_info { + struct i40iw_qp_uk *qp; + u8 q_type; + u8 vlan_valid; + u8 l3proto; + u8 l4proto; + u16 payload_len; + u32 compl_error; /* No_err=0, else major and minor err code */ + u32 qp_id; + u32 wqe_idx; +}; + +struct i40iw_puda_send_info { + u64 paddr; /* Physical address */ + u32 len; + u8 tcplen; + u8 maclen; + bool ipv4; + bool doloopback; + void *scratch; +}; + +struct i40iw_puda_buf { + struct list_head list; /* MUST be first entry */ + struct i40iw_dma_mem mem; /* DMA memory for the buffer */ + struct i40iw_puda_buf *next; /* for alloclist in rsrc struct */ + struct i40iw_virt_mem buf_mem; /* Buffer memory for this buffer */ + void *scratch; + u8 *iph; + u8 *tcph; + u8 *data; + u16 datalen; + u16 vlan_id; + u8 tcphlen; /* tcp length in bytes */ + u8 maclen; /* mac length in bytes */ + u32 totallen; /* machlen+iphlen+tcphlen+datalen */ + atomic_t refcount; + u8 hdrlen; + bool ipv4; + u32 seqnum; +}; + +struct i40iw_puda_rsrc_info { + enum puda_resource_type type; /* ILQ or IEQ */ + u32 count; + u16 pd_id; + u32 cq_id; + u32 qp_id; + u32 sq_size; + u32 rq_size; + u16 buf_size; + u16 mss; + u32 tx_buf_cnt; /* total bufs allocated will be rq_size + tx_buf_cnt */ + void (*receive)(struct i40iw_sc_dev *, struct i40iw_puda_buf *); + void (*xmit_complete)(struct i40iw_sc_dev *, void *); +}; + +struct i40iw_puda_rsrc { + struct i40iw_sc_cq cq; + struct i40iw_sc_qp qp; + struct i40iw_sc_pd sc_pd; + struct i40iw_sc_dev *dev; + struct i40iw_dma_mem cqmem; + struct i40iw_dma_mem qpmem; + struct i40iw_virt_mem ilq_mem; + enum puda_rsrc_complete completion; + enum puda_resource_type type; + u16 buf_size; /*buffer must be max datalen + tcpip hdr + mac */ + u16 mss; + u32 cq_id; + u32 qp_id; + u32 sq_size; + u32 rq_size; + u32 cq_size; + struct i40iw_sq_uk_wr_trk_info *sq_wrtrk_array; + u64 *rq_wrid_array; + u32 compl_rxwqe_idx; + u32 rx_wqe_idx; + u32 rxq_invalid_cnt; + u32 tx_wqe_avail_cnt; + bool check_crc; + struct shash_desc *hash_desc; + struct list_head txpend; + struct list_head bufpool; /* free buffers pool list for recv and xmit */ + u32 alloc_buf_count; + u32 avail_buf_count; /* snapshot of currently available buffers */ + spinlock_t bufpool_lock; + struct i40iw_puda_buf *alloclist; + void (*receive)(struct i40iw_sc_dev *, struct i40iw_puda_buf *); + void (*xmit_complete)(struct i40iw_sc_dev *, void *); + /* puda stats */ + u64 stats_buf_alloc_fail; + u64 stats_pkt_rcvd; + u64 stats_pkt_sent; + u64 stats_rcvd_pkt_err; + u64 stats_sent_pkt_q; + u64 stats_bad_qp_id; +}; + +struct i40iw_puda_buf *i40iw_puda_get_bufpool(struct i40iw_puda_rsrc *rsrc); +void i40iw_puda_ret_bufpool(struct i40iw_puda_rsrc *rsrc, + struct i40iw_puda_buf *buf); +void i40iw_puda_send_buf(struct i40iw_puda_rsrc *rsrc, + struct i40iw_puda_buf *buf); +enum i40iw_status_code i40iw_puda_send(struct i40iw_sc_qp *qp, + struct i40iw_puda_send_info *info); +enum i40iw_status_code i40iw_puda_create_rsrc(struct i40iw_sc_dev *dev, + struct i40iw_puda_rsrc_info *info); +void i40iw_puda_dele_resources(struct i40iw_sc_dev *dev, + enum puda_resource_type type, + bool reset); +enum i40iw_status_code i40iw_puda_poll_completion(struct i40iw_sc_dev *dev, + struct i40iw_sc_cq *cq, u32 *compl_err); +void i40iw_ieq_cleanup_qp(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp); + +struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev, + struct i40iw_puda_buf *buf); +enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info, + struct i40iw_puda_buf *buf); +enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc, + void *addr, u32 length, u32 value); +enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc); +void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp); +void i40iw_free_hash_desc(struct shash_desc *desc); +void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, + u32 seqnum); +#endif |