diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_fcoe.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_fcoe.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_fcoe.h b/drivers/net/ethernet/intel/i40e/i40e_fcoe.h new file mode 100644 index 000000000000..21e0f582031c --- /dev/null +++ b/drivers/net/ethernet/intel/i40e/i40e_fcoe.h @@ -0,0 +1,128 @@ +/******************************************************************************* + * + * Intel Ethernet Controller XL710 Family Linux Driver + * Copyright(c) 2013 - 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Contact Information: + * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + ******************************************************************************/ + +#ifndef _I40E_FCOE_H_ +#define _I40E_FCOE_H_ + +/* FCoE HW context helper macros */ +#define I40E_DDP_CONTEXT_DESC(R, i) \ + (&(((struct i40e_fcoe_ddp_context_desc *)((R)->desc))[i])) + +#define I40E_QUEUE_CONTEXT_DESC(R, i) \ + (&(((struct i40e_fcoe_queue_context_desc *)((R)->desc))[i])) + +#define I40E_FILTER_CONTEXT_DESC(R, i) \ + (&(((struct i40e_fcoe_filter_context_desc *)((R)->desc))[i])) + + +/* receive queue descriptor filter status for FCoE */ +#define I40E_RX_DESC_FLTSTAT_FCMASK 0x3 +#define I40E_RX_DESC_FLTSTAT_NOMTCH 0x0 /* no ddp context match */ +#define I40E_RX_DESC_FLTSTAT_NODDP 0x1 /* no ddp due to error */ +#define I40E_RX_DESC_FLTSTAT_DDP 0x2 /* DDPed payload, post header */ +#define I40E_RX_DESC_FLTSTAT_FCPRSP 0x3 /* FCP_RSP */ + +/* receive queue descriptor error codes for FCoE */ +#define I40E_RX_DESC_FCOE_ERROR_MASK \ + (I40E_RX_DESC_ERROR_L3L4E_PROT | \ + I40E_RX_DESC_ERROR_L3L4E_FC | \ + I40E_RX_DESC_ERROR_L3L4E_DMAC_ERR | \ + I40E_RX_DESC_ERROR_L3L4E_DMAC_WARN) + +/* receive queue descriptor programming error */ +#define I40E_RX_PROG_FCOE_ERROR_TBL_FULL(e) \ + (((e) >> I40E_RX_PROG_STATUS_DESC_FCOE_TBL_FULL_SHIFT) & 0x1) + +#define I40E_RX_PROG_FCOE_ERROR_CONFLICT(e) \ + (((e) >> I40E_RX_PROG_STATUS_DESC_FCOE_CONFLICT_SHIFT) & 0x1) + +#define I40E_RX_PROG_FCOE_ERROR_TBL_FULL_BIT \ + (1 << I40E_RX_PROG_STATUS_DESC_FCOE_TBL_FULL_SHIFT) +#define I40E_RX_PROG_FCOE_ERROR_CONFLICT_BIT \ + (1 << I40E_RX_PROG_STATUS_DESC_FCOE_CONFLICT_SHIFT) + +#define I40E_RX_PROG_FCOE_ERROR_INVLFAIL(e) \ + I40E_RX_PROG_FCOE_ERROR_CONFLICT(e) +#define I40E_RX_PROG_FCOE_ERROR_INVLFAIL_BIT \ + I40E_RX_PROG_FCOE_ERROR_CONFLICT_BIT + +/* FCoE DDP related definitions */ +#define I40E_FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */ +#define I40E_FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */ +#define I40E_FCOE_DDP_BUFFCNT_MAX 512 /* 9 bits bufcnt */ +#define I40E_FCOE_DDP_PTR_ALIGN 16 +#define I40E_FCOE_DDP_PTR_MAX (I40E_FCOE_DDP_BUFFCNT_MAX * sizeof(dma_addr_t)) +#define I40E_FCOE_DDP_BUF_MIN 4096 +#define I40E_FCOE_DDP_MAX 2048 +#define I40E_FCOE_FILTER_CTX_QW1_PCTYPE_SHIFT 8 + +/* supported netdev features for FCoE */ +#define I40E_FCOE_NETIF_FEATURES (NETIF_F_ALL_FCOE | \ + NETIF_F_HW_VLAN_CTAG_TX | \ + NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_HW_VLAN_CTAG_FILTER) + +/* DDP context flags */ +enum i40e_fcoe_ddp_flags { + __I40E_FCOE_DDP_NONE = 1, + __I40E_FCOE_DDP_TARGET, + __I40E_FCOE_DDP_INITALIZED, + __I40E_FCOE_DDP_PROGRAMMED, + __I40E_FCOE_DDP_DONE, + __I40E_FCOE_DDP_ABORTED, + __I40E_FCOE_DDP_UNMAPPED, +}; + +/* DDP SW context struct */ +struct i40e_fcoe_ddp { + int len; + u16 xid; + u16 firstoff; + u16 lastsize; + u16 list_len; + u8 fcerr; + u8 prerr; + unsigned long flags; + unsigned int sgc; + struct scatterlist *sgl; + dma_addr_t udp; + u64 *udl; + struct dma_pool *pool; + +}; + +struct i40e_fcoe_ddp_pool { + struct dma_pool *pool; +}; + +struct i40e_fcoe { + unsigned long mode; + atomic_t refcnt; + struct i40e_fcoe_ddp_pool __percpu *ddp_pool; + struct i40e_fcoe_ddp ddp[I40E_FCOE_DDP_MAX]; +}; + +#endif /* _I40E_FCOE_H_ */ |