diff options
Diffstat (limited to 'drivers/scsi/mvsas/mv_sas.h')
| -rw-r--r-- | drivers/scsi/mvsas/mv_sas.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h new file mode 100644 index 00000000000..7a954a95a21 --- /dev/null +++ b/drivers/scsi/mvsas/mv_sas.h @@ -0,0 +1,205 @@ +/* + mv_sas.h - Marvell 88SE6440 SAS/SATA support + + Copyright 2007 Red Hat, Inc. + Copyright 2008 Marvell. <kewei@marvell.com> + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public + License along with this program; see the file COPYING. If not, + write to the Free Software Foundation, 675 Mass Ave, Cambridge, + MA 02139, USA. + + */ + +#ifndef _MV_SAS_H_ +#define _MV_SAS_H_ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/types.h> +#include <linux/ctype.h> +#include <linux/dma-mapping.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/vmalloc.h> +#include <scsi/libsas.h> +#include <scsi/scsi_tcq.h> +#include <scsi/sas_ata.h> +#include <linux/version.h> +#include "mv_defs.h" + +#define DRV_NAME "mvsas" +#define DRV_VERSION "0.5.2" +#define _MV_DUMP 0 +#define MVS_DISABLE_NVRAM +#define MVS_DISABLE_MSI + +#define MVS_ID_NOT_MAPPED 0x7f +#define MVS_CHIP_SLOT_SZ (1U << mvi->chip->slot_width) + +#define for_each_phy(__lseq_mask, __mc, __lseq, __rest) \ + for ((__mc) = (__lseq_mask), (__lseq) = 0; \ + (__mc) != 0 && __rest; \ + (++__lseq), (__mc) >>= 1) + +struct mvs_chip_info { + u32 n_phy; + u32 srs_sz; + u32 slot_width; +}; + +struct mvs_err_info { + __le32 flags; + __le32 flags2; +}; + +struct mvs_cmd_hdr { + __le32 flags; /* PRD tbl len; SAS, SATA ctl */ + __le32 lens; /* cmd, max resp frame len */ + __le32 tags; /* targ port xfer tag; tag */ + __le32 data_len; /* data xfer len */ + __le64 cmd_tbl; /* command table address */ + __le64 open_frame; /* open addr frame address */ + __le64 status_buf; /* status buffer address */ + __le64 prd_tbl; /* PRD tbl address */ + __le32 reserved[4]; +}; + +struct mvs_port { + struct asd_sas_port sas_port; + u8 port_attached; + u8 taskfileset; + u8 wide_port_phymap; + struct list_head list; +}; + +struct mvs_phy { + struct mvs_port *port; + struct asd_sas_phy sas_phy; + struct sas_identify identify; + struct scsi_device *sdev; + u64 dev_sas_addr; + u64 att_dev_sas_addr; + u32 att_dev_info; + u32 dev_info; + u32 phy_type; + u32 phy_status; + u32 irq_status; + u32 frame_rcvd_size; + u8 frame_rcvd[32]; + u8 phy_attached; + enum sas_linkrate minimum_linkrate; + enum sas_linkrate maximum_linkrate; +}; + +struct mvs_slot_info { + struct list_head list; + struct sas_task *task; + u32 n_elem; + u32 tx; + + /* DMA buffer for storing cmd tbl, open addr frame, status buffer, + * and PRD table + */ + void *buf; + dma_addr_t buf_dma; +#if _MV_DUMP + u32 cmd_size; +#endif + + void *response; + struct mvs_port *port; +}; + +struct mvs_info { + unsigned long flags; + + /* host-wide lock */ + spinlock_t lock; + + /* our device */ + struct pci_dev *pdev; + + /* enhanced mode registers */ + void __iomem *regs; + + /* peripheral registers */ + void __iomem *peri_regs; + + u8 sas_addr[SAS_ADDR_SIZE]; + + /* SCSI/SAS glue */ + struct sas_ha_struct sas; + struct Scsi_Host *shost; + + /* TX (delivery) DMA ring */ + __le32 *tx; + dma_addr_t tx_dma; + + /* cached next-producer idx */ + u32 tx_prod; + + /* RX (completion) DMA ring */ + __le32 *rx; + dma_addr_t rx_dma; + + /* RX consumer idx */ + u32 rx_cons; + + /* RX'd FIS area */ + __le32 *rx_fis; + dma_addr_t rx_fis_dma; + + /* DMA command header slots */ + struct mvs_cmd_hdr *slot; + dma_addr_t slot_dma; + + const struct mvs_chip_info *chip; + + u8 tags[MVS_SLOTS]; + struct mvs_slot_info slot_info[MVS_SLOTS]; + /* further per-slot information */ + struct mvs_phy phy[MVS_MAX_PHYS]; + struct mvs_port port[MVS_MAX_PHYS]; +#ifdef MVS_USE_TASKLET + struct tasklet_struct tasklet; +#endif +}; + +int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, + void *funcdata); +int mvs_slave_configure(struct scsi_device *sdev); +void mvs_scan_start(struct Scsi_Host *shost); +int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time); +int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags); +int mvs_task_abort(struct sas_task *task); +void mvs_port_formed(struct asd_sas_phy *sas_phy); +int mvs_I_T_nexus_reset(struct domain_device *dev); +void mvs_int_full(struct mvs_info *mvi); +void mvs_tag_init(struct mvs_info *mvi); +int mvs_nvram_read(struct mvs_info *mvi, u32 addr, void *buf, u32 buflen); +int __devinit mvs_hw_init(struct mvs_info *mvi); +void __devinit mvs_print_info(struct mvs_info *mvi); +void mvs_hba_interrupt_enable(struct mvs_info *mvi); +void mvs_hba_interrupt_disable(struct mvs_info *mvi); +void mvs_detect_porttype(struct mvs_info *mvi, int i); +u8 mvs_assign_reg_set(struct mvs_info *mvi, struct mvs_port *port); +void mvs_enable_xmt(struct mvs_info *mvi, int PhyId); +void __devinit mvs_phy_hacks(struct mvs_info *mvi); +void mvs_free_reg_set(struct mvs_info *mvi, struct mvs_port *port); + +#endif |