diff options
Diffstat (limited to 'drivers/scsi/isci/host.h')
| -rw-r--r-- | drivers/scsi/isci/host.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 062101a39f79..646051afd3cb 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -369,6 +369,9 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) #define ISCI_TAG_SEQ(tag) (((tag) >> 12) & (SCI_MAX_SEQ-1)) #define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) +/* interrupt coalescing baseline: 9 == 3 to 5us interrupt delay per command */ +#define ISCI_COALESCE_BASE 9 + /* expander attached sata devices require 3 rnc slots */ static inline int sci_remote_device_node_count(struct isci_remote_device *idev) { @@ -437,6 +440,18 @@ static inline bool is_c0(struct pci_dev *pdev) return false; } +/* set hw control for 'activity', even though active enclosures seem to drive + * the activity led on their own. Skip setting FSENG control on 'status' due + * to unexpected operation and 'error' due to not being a supported automatic + * FSENG output + */ +#define SGPIO_HW_CONTROL 0x00000443 + +static inline int isci_gpio_count(struct isci_host *ihost) +{ + return ARRAY_SIZE(ihost->scu_registers->peg0.sgpio.output_data_select); +} + void sci_controller_post_request(struct isci_host *ihost, u32 request); void sci_controller_release_frame(struct isci_host *ihost, @@ -539,4 +554,7 @@ void sci_port_configuration_agent_construct( enum sci_status sci_port_configuration_agent_initialize( struct isci_host *ihost, struct sci_port_configuration_agent *port_agent); + +int isci_gpio_write(struct sas_ha_struct *, u8 reg_type, u8 reg_index, + u8 reg_count, u8 *write_data); #endif |