esp_scsi.c (63ce2499947683dcc026373e24a4cb5a9d086e7d) esp_scsi.c (70f23fd66bc821a0e99647f70a809e277cc93c4c)
1/* esp_scsi.c: ESP SCSI driver.
2 *
3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
4 */
5
6#include <linux/kernel.h>
7#include <linux/types.h>
8#include <linux/slab.h>

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703
704 cmd = ent->cmd;
705 dev = cmd->device;
706 tgt = dev->id;
707 lun = dev->lun;
708 tp = &esp->target[tgt];
709 lp = dev->hostdata;
710
1/* esp_scsi.c: ESP SCSI driver.
2 *
3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
4 */
5
6#include <linux/kernel.h>
7#include <linux/types.h>
8#include <linux/slab.h>

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703
704 cmd = ent->cmd;
705 dev = cmd->device;
706 tgt = dev->id;
707 lun = dev->lun;
708 tp = &esp->target[tgt];
709 lp = dev->hostdata;
710
711 list_move(&ent->list, &esp->active_cmds);
711 list_del(&ent->list);
712 list_add(&ent->list, &esp->active_cmds);
712
713 esp->active_cmd = ent;
714
715 esp_map_dma(esp, cmd);
716 esp_save_pointers(esp, ent);
717
718 esp_check_command_len(esp, cmd);
719

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1053 }
1054
1055 /* DMA in the tag bytes... */
1056 esp->command_block[0] = 0xff;
1057 esp->command_block[1] = 0xff;
1058 esp->ops->send_dma_cmd(esp, esp->command_block_dma,
1059 2, 2, 1, ESP_CMD_DMA | ESP_CMD_TI);
1060
713
714 esp->active_cmd = ent;
715
716 esp_map_dma(esp, cmd);
717 esp_save_pointers(esp, ent);
718
719 esp_check_command_len(esp, cmd);
720

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1054 }
1055
1056 /* DMA in the tag bytes... */
1057 esp->command_block[0] = 0xff;
1058 esp->command_block[1] = 0xff;
1059 esp->ops->send_dma_cmd(esp, esp->command_block_dma,
1060 2, 2, 1, ESP_CMD_DMA | ESP_CMD_TI);
1061
1061 /* ACK the msssage. */
1062 /* ACK the message. */
1062 scsi_esp_cmd(esp, ESP_CMD_MOK);
1063
1064 for (i = 0; i < ESP_RESELECT_TAG_LIMIT; i++) {
1065 if (esp->ops->irq_pending(esp)) {
1066 esp->sreg = esp_read8(ESP_STATUS);
1067 esp->ireg = esp_read8(ESP_INTRPT);
1068 if (esp->ireg & ESP_INTR_FDONE)
1069 break;

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1238 SCSI_SENSE_BUFFERSIZE,
1239 DMA_FROM_DEVICE);
1240 ent->sense_ptr = NULL;
1241 }
1242
1243 /* Now that the state is unwound properly, put back onto
1244 * the issue queue. This command is no longer active.
1245 */
1063 scsi_esp_cmd(esp, ESP_CMD_MOK);
1064
1065 for (i = 0; i < ESP_RESELECT_TAG_LIMIT; i++) {
1066 if (esp->ops->irq_pending(esp)) {
1067 esp->sreg = esp_read8(ESP_STATUS);
1068 esp->ireg = esp_read8(ESP_INTRPT);
1069 if (esp->ireg & ESP_INTR_FDONE)
1070 break;

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1239 SCSI_SENSE_BUFFERSIZE,
1240 DMA_FROM_DEVICE);
1241 ent->sense_ptr = NULL;
1242 }
1243
1244 /* Now that the state is unwound properly, put back onto
1245 * the issue queue. This command is no longer active.
1246 */
1246 list_move(&ent->list, &esp->queued_cmds);
1247 list_del(&ent->list);
1248 list_add(&ent->list, &esp->queued_cmds);
1247 esp->active_cmd = NULL;
1248
1249 /* Return value ignored by caller, it directly invokes
1250 * esp_reconnect().
1251 */
1252 return 0;
1253 }
1254

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1250
1251 /* Return value ignored by caller, it directly invokes
1252 * esp_reconnect().
1253 */
1254 return 0;
1255 }
1256

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