2  * Copyright (c) 2003-2017 Cavium, Inc.
9  * published by the Free Software Foundation. When using or redistributing
25  *    used to endorse or promote products derived from this software without
28  * This Software, including technical data, may be subject to U.S. export
33  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
36  * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
42  * ENTIRE  RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
55 	union zip_zres_s *result_ptr = &s->result;  in prepare_inflate_zcmd()
57 	memset(zip_cmd, 0, sizeof(s->zip_cmd));  in prepare_inflate_zcmd()
58 	memset(result_ptr, 0, sizeof(s->result));  in prepare_inflate_zcmd()
62 	/* Decompression History Gather list - no gather list */  in prepare_inflate_zcmd()
63 	zip_cmd->s.hg = 0;  in prepare_inflate_zcmd()
65 	zip_cmd->s.ce = 0;  in prepare_inflate_zcmd()
67 	zip_cmd->s.ss = 0;  in prepare_inflate_zcmd()
69 	zip_cmd->s.sf = 1;  in prepare_inflate_zcmd()
72 	if (zip_ops->begin_file == 0)  in prepare_inflate_zcmd()
73 		zip_cmd->s.bf = 0;  in prepare_inflate_zcmd()
75 		zip_cmd->s.bf = 1;  in prepare_inflate_zcmd()
77 	zip_cmd->s.ef = 1;  in prepare_inflate_zcmd()
79 	zip_cmd->s.cc = zip_ops->ccode;  in prepare_inflate_zcmd()
84 	zip_cmd->s.adlercrc32 = zip_ops->csum;  in prepare_inflate_zcmd()
90 	zip_cmd->s.historylength = 0;  in prepare_inflate_zcmd()
91 	zip_cmd->s.ds = 0;  in prepare_inflate_zcmd()
93 	/* IWORD # 8 and 9 - Output pointer */  in prepare_inflate_zcmd()
94 	zip_cmd->s.out_ptr_addr.s.addr  = __pa(zip_ops->output);  in prepare_inflate_zcmd()
95 	zip_cmd->s.out_ptr_ctl.s.length = zip_ops->output_len;  in prepare_inflate_zcmd()
97 	/* Maximum number of output-stream bytes that can be written */  in prepare_inflate_zcmd()
98 	zip_cmd->s.totaloutputlength    = zip_ops->output_len;  in prepare_inflate_zcmd()
102 	/* IWORD # 6 and 7 - input pointer */  in prepare_inflate_zcmd()
103 	zip_cmd->s.dg = 0;  in prepare_inflate_zcmd()
104 	zip_cmd->s.inp_ptr_addr.s.addr  = __pa((u8 *)zip_ops->input);  in prepare_inflate_zcmd()
105 	zip_cmd->s.inp_ptr_ctl.s.length = zip_ops->input_len;  in prepare_inflate_zcmd()
107 	/* IWORD # 10 and 11 - Result pointer */  in prepare_inflate_zcmd()
108 	zip_cmd->s.res_ptr_addr.s.addr = __pa(result_ptr);  in prepare_inflate_zcmd()
111 	result_ptr->s.compcode = 0;  in prepare_inflate_zcmd()
118  * zip_inflate - API to offload inflate operation to hardware
131 	union zip_inst_s *zip_cmd    = &s->zip_cmd;  in zip_inflate()
132 	union zip_zres_s  *result_ptr = &s->result;  in zip_inflate()
138 	atomic64_add(zip_ops->input_len, &zip_dev->stats.decomp_in_bytes);  in zip_inflate()
144 	atomic64_inc(&zip_dev->stats.decomp_req_submit);  in zip_inflate()
150 	atomic64_inc(&zip_dev->stats.decomp_req_complete);  in zip_inflate()
152 	zip_ops->compcode = result_ptr->s.compcode;  in zip_inflate()
153 	switch (zip_ops->compcode) {  in zip_inflate()
163 		zip_dbg(" Dynamic stop Initiated\n");  in zip_inflate()
167 		zip_dbg("Instruction failed. Code = %d\n", zip_ops->compcode);  in zip_inflate()
168 		atomic64_inc(&zip_dev->stats.decomp_bad_reqs);  in zip_inflate()
175 	if ((zip_ops->ccode == 3) && (zip_ops->flush == 4) &&  in zip_inflate()
176 	    (zip_ops->compcode != ZIP_CMD_DYNAMIC_STOP))  in zip_inflate()
177 		result_ptr->s.ef = 1;  in zip_inflate()
179 	zip_ops->csum = result_ptr->s.adler32;  in zip_inflate()
181 	atomic64_add(result_ptr->s.totalbyteswritten,  in zip_inflate()
182 		     &zip_dev->stats.decomp_out_bytes);  in zip_inflate()
184 	if (zip_ops->output_len < result_ptr->s.totalbyteswritten) {  in zip_inflate()
186 			zip_ops->output_len, result_ptr->s.totalbyteswritten);  in zip_inflate()
187 		zip_ops->output_len = 0;  in zip_inflate()
189 		zip_ops->output_len = result_ptr->s.totalbyteswritten;  in zip_inflate()
192 	zip_ops->bytes_read = result_ptr->s.totalbytesread;  in zip_inflate()
193 	zip_ops->bits_processed = result_ptr->s.totalbitsprocessed;  in zip_inflate()
194 	zip_ops->end_file = result_ptr->s.ef;  in zip_inflate()
195 	if (zip_ops->end_file) {  in zip_inflate()
196 		switch (zip_ops->format) {  in zip_inflate()
198 			zip_dbg("RAW Format: %d ", zip_ops->format);  in zip_inflate()
200 			zip_ops->csum = result_ptr->s.adler32;  in zip_inflate()
204 			zip_dbg("ZLIB Format: %d ", zip_ops->format);  in zip_inflate()
205 			zip_ops->csum = result_ptr->s.adler32;  in zip_inflate()
209 			zip_dbg("GZIP Format: %d ", zip_ops->format);  in zip_inflate()
210 			zip_ops->csum = result_ptr->s.crc32;  in zip_inflate()
214 			zip_dbg("LZS Format: %d ", zip_ops->format);  in zip_inflate()
218 			zip_err("Format error:%d\n", zip_ops->format);  in zip_inflate()