diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 309 |
1 files changed, 173 insertions, 136 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index efc055b6bac4..8021c9e1fb9f 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1,4 +1,4 @@ -/******************************************************************* +/******************************************************************r * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2012 Emulex. All rights reserved. * @@ -39,8 +39,8 @@ #include "lpfc_sli4.h" #include "lpfc_nl.h" #include "lpfc_disc.h" -#include "lpfc_scsi.h" #include "lpfc.h" +#include "lpfc_scsi.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_vport.h" @@ -51,13 +51,19 @@ int _dump_buf_done; static char *dif_op_str[] = { - "SCSI_PROT_NORMAL", - "SCSI_PROT_READ_INSERT", - "SCSI_PROT_WRITE_STRIP", - "SCSI_PROT_READ_STRIP", - "SCSI_PROT_WRITE_INSERT", - "SCSI_PROT_READ_PASS", - "SCSI_PROT_WRITE_PASS", + "PROT_NORMAL", + "PROT_READ_INSERT", + "PROT_WRITE_STRIP", + "PROT_READ_STRIP", + "PROT_WRITE_INSERT", + "PROT_READ_PASS", + "PROT_WRITE_PASS", +}; + +static char *dif_grd_str[] = { + "NO_GUARD", + "DIF_CRC", + "DIX_IP", }; struct scsi_dif_tuple { @@ -1281,10 +1287,14 @@ lpfc_cmd_blksize(struct scsi_cmnd *sc) #ifdef CONFIG_SCSI_LPFC_DEBUG_FS -#define BG_ERR_INIT 1 -#define BG_ERR_TGT 2 -#define BG_ERR_SWAP 3 -#define BG_ERR_CHECK 4 +/* Return if if error injection is detected by Initiator */ +#define BG_ERR_INIT 0x1 +/* Return if if error injection is detected by Target */ +#define BG_ERR_TGT 0x2 +/* Return if if swapping CSUM<-->CRC is required for error injection */ +#define BG_ERR_SWAP 0x10 +/* Return if disabling Guard/Ref/App checking is required for error injection */ +#define BG_ERR_CHECK 0x20 /** * lpfc_bg_err_inject - Determine if we should inject an error @@ -1294,10 +1304,7 @@ lpfc_cmd_blksize(struct scsi_cmnd *sc) * @apptag: (out) BlockGuard application tag for transmitted data * @new_guard (in) Value to replace CRC with if needed * - * Returns (1) if error injection is detected by Initiator - * Returns (2) if error injection is detected by Target - * Returns (3) if swapping CSUM->CRC is required for error injection - * Returns (4) disabling Guard/Ref/App checking is required for error injection + * Returns BG_ERR_* bit mask or 0 if request ignored **/ static int lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, @@ -1305,6 +1312,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, { struct scatterlist *sgpe; /* s/g prot entry */ struct scatterlist *sgde; /* s/g data entry */ + struct lpfc_scsi_buf *lpfc_cmd = NULL; struct scsi_dif_tuple *src = NULL; uint32_t op = scsi_get_prot_op(sc); uint32_t blksize; @@ -1336,6 +1344,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, blockoff = numblks; src = (struct scsi_dif_tuple *)sg_virt(sgpe); src += blockoff; + lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; } } @@ -1344,56 +1353,71 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, if (phba->lpfc_injerr_wref_cnt) { switch (op) { case SCSI_PROT_WRITE_PASS: - if (blockoff && src) { - /* Insert error in middle of the IO */ + if (src) { + /* + * For WRITE_PASS, force the error + * to be sent on the wire. It should + * be detected by the Target. + * If blockoff != 0 error will be + * inserted in middle of the IO. + */ lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9076 BLKGRD: Injecting reftag error: " "write lba x%lx + x%x oldrefTag x%x\n", (unsigned long)lba, blockoff, - src->ref_tag); + be32_to_cpu(src->ref_tag)); /* - * NOTE, this will change ref tag in - * the memory location forever! + * Save the old ref_tag so we can + * restore it on completion. */ - src->ref_tag = 0xDEADBEEF; + if (lpfc_cmd) { + lpfc_cmd->prot_data_type = + LPFC_INJERR_REFTAG; + lpfc_cmd->prot_data_segment = + src; + lpfc_cmd->prot_data = + src->ref_tag; + } + src->ref_tag = cpu_to_be32(0xDEADBEEF); phba->lpfc_injerr_wref_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_CHECK; + rc = BG_ERR_TGT | BG_ERR_CHECK; + break; } /* Drop thru */ - case SCSI_PROT_WRITE_STRIP: + case SCSI_PROT_WRITE_INSERT: /* - * For WRITE_STRIP and WRITE_PASS, - * force the error on data - * being copied from SLI-Host to SLI-Port. + * For WRITE_INSERT, force the error + * to be sent on the wire. It should be + * detected by the Target. */ + /* DEADBEEF will be the reftag on the wire */ *reftag = 0xDEADBEEF; phba->lpfc_injerr_wref_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_INIT; + rc = BG_ERR_TGT | BG_ERR_CHECK; lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9077 BLKGRD: Injecting reftag error: " + "9078 BLKGRD: Injecting reftag error: " "write lba x%lx\n", (unsigned long)lba); break; - case SCSI_PROT_WRITE_INSERT: + case SCSI_PROT_WRITE_STRIP: /* - * For WRITE_INSERT, force the - * error to be sent on the wire. It should be - * detected by the Target. + * For WRITE_STRIP and WRITE_PASS, + * force the error on data + * being copied from SLI-Host to SLI-Port. */ - /* DEADBEEF will be the reftag on the wire */ *reftag = 0xDEADBEEF; phba->lpfc_injerr_wref_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_TGT; + rc = BG_ERR_INIT; lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "9078 BLKGRD: Injecting reftag error: " + "9077 BLKGRD: Injecting reftag error: " "write lba x%lx\n", (unsigned long)lba); break; } @@ -1432,55 +1456,71 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, switch (op) { case SCSI_PROT_WRITE_PASS: if (blockoff && src) { - /* Insert error in middle of the IO */ + /* + * For WRITE_PASS, force the error + * to be sent on the wire. It should + * be detected by the Target. + * If blockoff != 0 error will be + * inserted in middle of the IO. + */ + lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9080 BLKGRD: Injecting apptag error: " "write lba x%lx + x%x oldappTag x%x\n", (unsigned long)lba, blockoff, - src->app_tag); + be16_to_cpu(src->app_tag)); /* - * NOTE, this will change app tag in - * the memory location forever! + * Save the old app_tag so we can + * restore it on completion. */ - src->app_tag = 0xDEAD; + if (lpfc_cmd) { + lpfc_cmd->prot_data_type = + LPFC_INJERR_APPTAG; + lpfc_cmd->prot_data_segment = + src; + lpfc_cmd->prot_data = + src->app_tag; + } + src->app_tag = cpu_to_be16(0xDEAD); phba->lpfc_injerr_wapp_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_CHECK; + rc = BG_ERR_TGT | BG_ERR_CHECK; break; } /* Drop thru */ - case SCSI_PROT_WRITE_STRIP: + case SCSI_PROT_WRITE_INSERT: /* - * For WRITE_STRIP and WRITE_PASS, - * force the error on data - * being copied from SLI-Host to SLI-Port. + * For WRITE_INSERT, force the + * error to be sent on the wire. It should be + * detected by the Target. */ + /* DEAD will be the apptag on the wire */ *apptag = 0xDEAD; phba->lpfc_injerr_wapp_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_INIT; + rc = BG_ERR_TGT; + rc = BG_ERR_TGT | BG_ERR_CHECK; lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "0812 BLKGRD: Injecting apptag error: " + "0813 BLKGRD: Injecting apptag error: " "write lba x%lx\n", (unsigned long)lba); break; - case SCSI_PROT_WRITE_INSERT: + case SCSI_PROT_WRITE_STRIP: /* - * For WRITE_INSERT, force the - * error to be sent on the wire. It should be - * detected by the Target. + * For WRITE_STRIP and WRITE_PASS, + * force the error on data + * being copied from SLI-Host to SLI-Port. */ - /* DEAD will be the apptag on the wire */ *apptag = 0xDEAD; phba->lpfc_injerr_wapp_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_TGT; + rc = BG_ERR_INIT; lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "0813 BLKGRD: Injecting apptag error: " + "0812 BLKGRD: Injecting apptag error: " "write lba x%lx\n", (unsigned long)lba); break; } @@ -1519,57 +1559,39 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, if (phba->lpfc_injerr_wgrd_cnt) { switch (op) { case SCSI_PROT_WRITE_PASS: - if (blockoff && src) { - /* Insert error in middle of the IO */ - - lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "0815 BLKGRD: Injecting guard error: " - "write lba x%lx + x%x oldgrdTag x%x\n", - (unsigned long)lba, blockoff, - src->guard_tag); - - /* - * NOTE, this will change guard tag in - * the memory location forever! - */ - src->guard_tag = 0xDEAD; - phba->lpfc_injerr_wgrd_cnt--; - phba->lpfc_injerr_lba = - LPFC_INJERR_LBA_OFF; - rc = BG_ERR_CHECK; - break; - } + rc = BG_ERR_CHECK; /* Drop thru */ - case SCSI_PROT_WRITE_STRIP: + + case SCSI_PROT_WRITE_INSERT: /* - * For WRITE_STRIP and WRITE_PASS, - * force the error on data - * being copied from SLI-Host to SLI-Port. + * For WRITE_INSERT, force the + * error to be sent on the wire. It should be + * detected by the Target. */ phba->lpfc_injerr_wgrd_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_SWAP; + rc |= BG_ERR_TGT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "0816 BLKGRD: Injecting guard error: " + "0817 BLKGRD: Injecting guard error: " "write lba x%lx\n", (unsigned long)lba); break; - case SCSI_PROT_WRITE_INSERT: + case SCSI_PROT_WRITE_STRIP: /* - * For WRITE_INSERT, force the - * error to be sent on the wire. It should be - * detected by the Target. + * For WRITE_STRIP and WRITE_PASS, + * force the error on data + * being copied from SLI-Host to SLI-Port. */ phba->lpfc_injerr_wgrd_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_SWAP; + rc = BG_ERR_INIT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ lpfc_printf_log(phba, KERN_ERR, LOG_BG, - "0817 BLKGRD: Injecting guard error: " + "0816 BLKGRD: Injecting guard error: " "write lba x%lx\n", (unsigned long)lba); break; } @@ -1589,11 +1611,10 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, * error on data being read off the wire. It * should force an IO error to the driver. */ - *apptag = 0xDEAD; phba->lpfc_injerr_rgrd_cnt--; phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; - rc = BG_ERR_SWAP; + rc = BG_ERR_INIT | BG_ERR_SWAP; /* Signals the caller to swap CRC->CSUM */ lpfc_printf_log(phba, KERN_ERR, LOG_BG, @@ -1722,7 +1743,7 @@ lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, case SCSI_PROT_READ_PASS: case SCSI_PROT_WRITE_PASS: - *txop = BG_OP_IN_CRC_OUT_CRC; + *txop = BG_OP_IN_CRC_OUT_CSUM; *rxop = BG_OP_IN_CRC_OUT_CRC; break; @@ -1741,7 +1762,7 @@ lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, case SCSI_PROT_READ_PASS: case SCSI_PROT_WRITE_PASS: - *txop = BG_OP_IN_CSUM_OUT_CRC; + *txop = BG_OP_IN_CSUM_OUT_CSUM; *rxop = BG_OP_IN_CRC_OUT_CSUM; break; @@ -1819,9 +1840,9 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, 0, 1); if (rc) { - if (rc == BG_ERR_SWAP) + if (rc & BG_ERR_SWAP) lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); - if (rc == BG_ERR_CHECK) + if (rc & BG_ERR_CHECK) checking = 0; } #endif @@ -1966,9 +1987,9 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, 0, 1); if (rc) { - if (rc == BG_ERR_SWAP) + if (rc & BG_ERR_SWAP) lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); - if (rc == BG_ERR_CHECK) + if (rc & BG_ERR_CHECK) checking = 0; } #endif @@ -2174,9 +2195,9 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, 0, 1); if (rc) { - if (rc == BG_ERR_SWAP) + if (rc & BG_ERR_SWAP) lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); - if (rc == BG_ERR_CHECK) + if (rc & BG_ERR_CHECK) checking = 0; } #endif @@ -2314,9 +2335,9 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, 0, 1); if (rc) { - if (rc == BG_ERR_SWAP) + if (rc & BG_ERR_SWAP) lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); - if (rc == BG_ERR_CHECK) + if (rc & BG_ERR_CHECK) checking = 0; } #endif @@ -3460,6 +3481,37 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, /* pick up SLI4 exhange busy status from HBA */ lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS + if (lpfc_cmd->prot_data_type) { + struct scsi_dif_tuple *src = NULL; + + src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; + /* + * Used to restore any changes to protection + * data for error injection. + */ + switch (lpfc_cmd->prot_data_type) { + case LPFC_INJERR_REFTAG: + src->ref_tag = + lpfc_cmd->prot_data; + break; + case LPFC_INJERR_APPTAG: + src->app_tag = + (uint16_t)lpfc_cmd->prot_data; + break; + case LPFC_INJERR_GUARD: + src->guard_tag = + (uint16_t)lpfc_cmd->prot_data; + break; + default: + break; + } + + lpfc_cmd->prot_data = 0; + lpfc_cmd->prot_data_type = 0; + lpfc_cmd->prot_data_segment = NULL; + } +#endif if (pnode && NLP_CHK_NODE_ACT(pnode)) atomic_dec(&pnode->cmd_pending); @@ -4119,63 +4171,48 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { if (vport->phba->cfg_enable_bg) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9033 BLKGRD: rcvd protected cmd:%02x op:%02x " - "str=%s\n", - cmnd->cmnd[0], scsi_get_prot_op(cmnd), - dif_op_str[scsi_get_prot_op(cmnd)]); - lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9034 BLKGRD: CDB: %02x %02x %02x %02x %02x " - "%02x %02x %02x %02x %02x\n", - cmnd->cmnd[0], cmnd->cmnd[1], cmnd->cmnd[2], - cmnd->cmnd[3], cmnd->cmnd[4], cmnd->cmnd[5], - cmnd->cmnd[6], cmnd->cmnd[7], cmnd->cmnd[8], - cmnd->cmnd[9]); + "9033 BLKGRD: rcvd protected cmd:%02x op=%s " + "guard=%s\n", cmnd->cmnd[0], + dif_op_str[scsi_get_prot_op(cmnd)], + dif_grd_str[scsi_host_get_guard(shost)]); if (cmnd->cmnd[0] == READ_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9035 BLKGRD: READ @ sector %llu, " - "count %u\n", + "cnt %u, rpt %d\n", (unsigned long long)scsi_get_lba(cmnd), - blk_rq_sectors(cmnd->request)); + blk_rq_sectors(cmnd->request), + (cmnd->cmnd[1]>>5)); else if (cmnd->cmnd[0] == WRITE_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9036 BLKGRD: WRITE @ sector %llu, " - "count %u cmd=%p\n", + "cnt %u, wpt %d\n", (unsigned long long)scsi_get_lba(cmnd), blk_rq_sectors(cmnd->request), - cmnd); + (cmnd->cmnd[1]>>5)); } err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); } else { if (vport->phba->cfg_enable_bg) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9038 BLKGRD: rcvd unprotected cmd:" - "%02x op:%02x str=%s\n", - cmnd->cmnd[0], scsi_get_prot_op(cmnd), - dif_op_str[scsi_get_prot_op(cmnd)]); - lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9039 BLKGRD: CDB: %02x %02x %02x " - "%02x %02x %02x %02x %02x %02x %02x\n", - cmnd->cmnd[0], cmnd->cmnd[1], - cmnd->cmnd[2], cmnd->cmnd[3], - cmnd->cmnd[4], cmnd->cmnd[5], - cmnd->cmnd[6], cmnd->cmnd[7], - cmnd->cmnd[8], cmnd->cmnd[9]); + "9038 BLKGRD: rcvd unprotected cmd:" + "%02x op=%s guard=%s\n", cmnd->cmnd[0], + dif_op_str[scsi_get_prot_op(cmnd)], + dif_grd_str[scsi_host_get_guard(shost)]); if (cmnd->cmnd[0] == READ_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9040 dbg: READ @ sector %llu, " - "count %u\n", + "cnt %u, rpt %d\n", (unsigned long long)scsi_get_lba(cmnd), - blk_rq_sectors(cmnd->request)); + blk_rq_sectors(cmnd->request), + (cmnd->cmnd[1]>>5)); else if (cmnd->cmnd[0] == WRITE_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9041 dbg: WRITE @ sector %llu, " - "count %u cmd=%p\n", - (unsigned long long)scsi_get_lba(cmnd), - blk_rq_sectors(cmnd->request), cmnd); - else - lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, - "9042 dbg: parser not implemented\n"); + "9041 dbg: WRITE @ sector %llu, " + "cnt %u, wpt %d\n", + (unsigned long long)scsi_get_lba(cmnd), + blk_rq_sectors(cmnd->request), + (cmnd->cmnd[1]>>5)); } err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); } |
