Release 4.7 drivers/scsi/fnic/cq_exch_desc.h

Directory: drivers/scsi/fnic
/*
 * 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;
}

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abhijeet joglekar abhijeet joglekar 59 100.00% 1 100.00%
Total 59 100.00% 1 100.00%


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;
}

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abhijeet joglekar abhijeet joglekar 254 100.00% 1 100.00%
Total 254 100.00% 1 100.00%


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;
}

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abhijeet joglekar abhijeet joglekar 95 100.00% 1 100.00%
Total 95 100.00% 1 100.00%

#endif /* _CQ_EXCH_DESC_H_ */
Overall Contributors
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abhijeet joglekar abhijeet joglekar 646 100.00% 1 100.00%
Total 646 100.00% 1 100.00%
  Directory: drivers/scsi/fnic

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
abhijeet joglekar	abhijeet joglekar	59	100.00%	1	100.00%
	Total	59	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/scsi/fnic/cq_exch_desc.h

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