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Commit acd6859b authored by James Smart's avatar James Smart Committed by James Bottomley
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[SCSI] lpfc 8.3.29: T10 Diff fixes and enhancements 



T10 Diff fixes and enhancements:

- Add SLI4 Lancer support for T10 DIF / BlockGuard (121980)
- Fix SLI4 BlockGuard behavior when protection data is generated by HBA (121980)
- Enhance debugfs for injecting T10 DIF errors (123966, 132966)
- Fix Incorrect usage of bghm for BlockGuard errors (127022)

Signed-off-by: default avatarAlex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 6b5151fd

drivers/scsi/lpfc/lpfc.h

+10 −3
Original line number Diff line number Diff line
@@ -534,6 +534,7 @@ struct lpfc_hba { 
	void (*lpfc_scsi_prep_cmnd)

		(struct lpfc_vport *, struct lpfc_scsi_buf *,

		 struct lpfc_nodelist *);



	/* IOCB interface function jump table entries */

	int (*__lpfc_sli_issue_iocb)

		(struct lpfc_hba *, uint32_t,
@@ -541,8 +542,6 @@ struct lpfc_hba { 
	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,

			 struct lpfc_iocbq *);

	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);





	IOCB_t * (*lpfc_get_iocb_from_iocbq)

		(struct lpfc_iocbq *);

	void (*lpfc_scsi_cmd_iocb_cmpl)
@@ -551,10 +550,12 @@ struct lpfc_hba { 
	/* MBOX interface function jump table entries */

	int (*lpfc_sli_issue_mbox)

		(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);



	/* Slow-path IOCB process function jump table entries */

	void (*lpfc_sli_handle_slow_ring_event)

		(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,

		 uint32_t mask);



	/* INIT device interface function jump table entries */

	int (*lpfc_sli_hbq_to_firmware)

		(struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
@@ -573,6 +574,10 @@ struct lpfc_hba { 
	int (*lpfc_selective_reset)

		(struct lpfc_hba *);



	int (*lpfc_bg_scsi_prep_dma_buf)

		(struct lpfc_hba *, struct lpfc_scsi_buf *);

	/* Add new entries here */



	/* SLI4 specific HBA data structure */

	struct lpfc_sli4_hba sli4_hba;
@@ -838,6 +843,7 @@ struct lpfc_hba { 
	struct dentry *debug_writeGuard; /* inject write guard_tag errors */

	struct dentry *debug_writeApp;   /* inject write app_tag errors */

	struct dentry *debug_writeRef;   /* inject write ref_tag errors */

	struct dentry *debug_readGuard;  /* inject read guard_tag errors */

	struct dentry *debug_readApp;    /* inject read app_tag errors */

	struct dentry *debug_readRef;    /* inject read ref_tag errors */
@@ -845,10 +851,11 @@ struct lpfc_hba { 
	uint32_t lpfc_injerr_wgrd_cnt;

	uint32_t lpfc_injerr_wapp_cnt;

	uint32_t lpfc_injerr_wref_cnt;

	uint32_t lpfc_injerr_rgrd_cnt;

	uint32_t lpfc_injerr_rapp_cnt;

	uint32_t lpfc_injerr_rref_cnt;

	sector_t lpfc_injerr_lba;

#define LPFC_INJERR_LBA_OFF	(sector_t)0xffffffffffffffff

#define LPFC_INJERR_LBA_OFF	(sector_t)(-1)



	struct dentry *debug_slow_ring_trc;

	struct lpfc_debugfs_trc *slow_ring_trc;

drivers/scsi/lpfc/lpfc_debugfs.c

+19 −0
Original line number Diff line number Diff line
@@ -1019,6 +1019,8 @@ lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 
		cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wapp_cnt);

	else if (dent == phba->debug_writeRef)

		cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wref_cnt);

	else if (dent == phba->debug_readGuard)

		cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rgrd_cnt);

	else if (dent == phba->debug_readApp)

		cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rapp_cnt);

	else if (dent == phba->debug_readRef)
@@ -1057,6 +1059,8 @@ lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 
		phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;

	else if (dent == phba->debug_writeRef)

		phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;

	else if (dent == phba->debug_readGuard)

		phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;

	else if (dent == phba->debug_readApp)

		phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;

	else if (dent == phba->debug_readRef)
@@ -3978,6 +3982,17 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) 
			goto debug_failed;

		}



		snprintf(name, sizeof(name), "readGuardInjErr");

		phba->debug_readGuard =

			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,

			phba->hba_debugfs_root,

			phba, &lpfc_debugfs_op_dif_err);

		if (!phba->debug_readGuard) {

			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,

				"0808 Cannot create debugfs readGuard\n");

			goto debug_failed;

		}



		snprintf(name, sizeof(name), "readAppInjErr");

		phba->debug_readApp =

			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
@@ -4318,6 +4333,10 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport) 
			debugfs_remove(phba->debug_writeRef); /* writeRef */

			phba->debug_writeRef = NULL;

		}

		if (phba->debug_readGuard) {

			debugfs_remove(phba->debug_readGuard); /* readGuard */

			phba->debug_readGuard = NULL;

		}

		if (phba->debug_readApp) {

			debugfs_remove(phba->debug_readApp); /* readApp */

			phba->debug_readApp = NULL;

drivers/scsi/lpfc/lpfc_hw4.h

+21 −2
Original line number Diff line number Diff line
@@ -321,6 +321,10 @@ struct lpfc_cqe { 
#define CQE_STATUS_CMD_REJECT		0xb

#define CQE_STATUS_FCP_TGT_LENCHECK	0xc

#define CQE_STATUS_NEED_BUFF_ENTRY	0xf

#define CQE_STATUS_DI_ERROR		0x16



/* Used when mapping CQE status to IOCB */

#define LPFC_IOCB_STATUS_MASK		0xf



/* Status returned by hardware (valid only if status = CQE_STATUS_SUCCESS). */

#define CQE_HW_STATUS_NO_ERR		0x0
@@ -348,6 +352,21 @@ struct lpfc_wcqe_complete { 
#define lpfc_wcqe_c_hw_status_WORD	word0

	uint32_t total_data_placed;

	uint32_t parameter;

#define lpfc_wcqe_c_bg_edir_SHIFT	5

#define lpfc_wcqe_c_bg_edir_MASK	0x00000001

#define lpfc_wcqe_c_bg_edir_WORD	parameter

#define lpfc_wcqe_c_bg_tdpv_SHIFT	3

#define lpfc_wcqe_c_bg_tdpv_MASK	0x00000001

#define lpfc_wcqe_c_bg_tdpv_WORD	parameter

#define lpfc_wcqe_c_bg_re_SHIFT		2

#define lpfc_wcqe_c_bg_re_MASK		0x00000001

#define lpfc_wcqe_c_bg_re_WORD		parameter

#define lpfc_wcqe_c_bg_ae_SHIFT		1

#define lpfc_wcqe_c_bg_ae_MASK		0x00000001

#define lpfc_wcqe_c_bg_ae_WORD		parameter

#define lpfc_wcqe_c_bg_ge_SHIFT		0

#define lpfc_wcqe_c_bg_ge_MASK		0x00000001

#define lpfc_wcqe_c_bg_ge_WORD		parameter

	uint32_t word3;

#define lpfc_wcqe_c_valid_SHIFT		lpfc_cqe_valid_SHIFT

#define lpfc_wcqe_c_valid_MASK		lpfc_cqe_valid_MASK

drivers/scsi/lpfc/lpfc_init.c

+9 −1
Original line number Diff line number Diff line
@@ -4380,6 +4380,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 
	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};

	struct lpfc_mqe *mqe;

	int longs, sli_family;

	int sges_per_segment;



	/* Before proceed, wait for POST done and device ready */

	rc = lpfc_sli4_post_status_check(phba);
@@ -4443,6 +4444,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 
	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;

	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;



	/* With BlockGuard we can have multiple SGEs per Data Segemnt */

	sges_per_segment = 1;

	if (phba->cfg_enable_bg)

		sges_per_segment = 2;



	/*

	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size

	 * used to create the sg_dma_buf_pool must be dynamically calculated.
@@ -4451,7 +4457,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 
	 * sgl sizes of must be a power of 2.

	 */

	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +

		    ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));

		    (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *

		    sizeof(struct sli4_sge)));



	sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);

	max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
@@ -4468,6 +4475,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 
	default:

		break;

	}



	for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;

	     dma_buf_size < max_buf_size && buf_size > dma_buf_size;

	     dma_buf_size = dma_buf_size << 1)

drivers/scsi/lpfc/lpfc_scsi.c

+1000 −178

File changed.

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