As first introduced in "[RFC PATCH 0/6] isci: initial driver release (part1: intro and lldd) " [1], the isci driver is split into an lldd layer that interfaces with libsas and a core layer that interfaces with the hardware. Quoting from the original introduction: Driver overview: The hardware accelerates all the protocol fast paths (SSP, STP FPDMA and UDMA), and relies on the the driver for everything else. One example is legacy sata pio reads which are managed "manually" by their own state machine in the driver. The driver submits the read and when the data fis comes back the hardware, not having acceleration for pio operations, assigns it to an unidentified frame queue. The core then associates that frame with the pending pio request, copies the data into the location specified by the original sgl, and completes the command up to the lldd. Since the initial import the core has shed about 10k lines of code. The todo list has also shrunk, we have eliminated the os abstractions (formerly in drivers/scsi/isci/deprecated.c), and usages of phys_to_virt and virt_to_phys have been replaced with proper dma api and kmap calls. The full driver and history is available in git: git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git master The libsas-pending branch contains proposed libsas fixes (pending acceptance into scsi-misc): git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git libsas-pending The x86-pending branch contains a proposed api for mapping bios roms so the driver can retrieve configuration parameters (pending acceptance into -tip): git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git x86-pending -- Dan for the isci driver team [1]: http://marc.info/?l=linux-scsi&m=129703780424729&w=2 --- Dan Williams (10): isci/core: controller isci/core: phy isci/core: port isci/core: remote device isci/core: remote node context isci/core: stp isci/core: request (general, ssp and smp) isci/core: unsolicited frame handling and registers isci/core: base state machine and memory descriptors isci/core: common definitions and utility functions drivers/scsi/isci/core/intel_ata.h | 554 +++ drivers/scsi/isci/core/intel_sas.h | 948 +++++ drivers/scsi/isci/core/intel_sat.h | 95 drivers/scsi/isci/core/intel_sata.h | 280 + drivers/scsi/isci/core/intel_scsi.h | 474 ++ drivers/scsi/isci/core/sati_device.h | 156 + drivers/scsi/isci/core/sati_translator_sequence.h | 304 ++ drivers/scsi/isci/core/sati_types.h | 145 + drivers/scsi/isci/core/sci_base_controller.h | 306 ++ .../isci/core/sci_base_memory_descriptor_list.c | 159 + .../isci/core/sci_base_memory_descriptor_list.h | 153 + drivers/scsi/isci/core/sci_base_phy.h | 200 + drivers/scsi/isci/core/sci_base_port.h | 203 + drivers/scsi/isci/core/sci_base_remote_device.h | 274 + drivers/scsi/isci/core/sci_base_request.h | 195 + drivers/scsi/isci/core/sci_base_state.h | 90 drivers/scsi/isci/core/sci_base_state_machine.c | 182 + drivers/scsi/isci/core/sci_base_state_machine.h | 141 + drivers/scsi/isci/core/sci_controller.h | 98 + drivers/scsi/isci/core/sci_controller_constants.h | 215 + .../scsi/isci/core/sci_memory_descriptor_list.h | 168 + drivers/scsi/isci/core/sci_object.h | 98 + drivers/scsi/isci/core/sci_pool.h | 199 + drivers/scsi/isci/core/sci_status.h | 409 ++ drivers/scsi/isci/core/sci_util.c | 101 + drivers/scsi/isci/core/sci_util.h | 108 + drivers/scsi/isci/core/scic_config_parameters.h | 346 ++ drivers/scsi/isci/core/scic_controller.h | 495 +++ drivers/scsi/isci/core/scic_io_request.h | 511 +++ drivers/scsi/isci/core/scic_phy.h | 305 ++ drivers/scsi/isci/core/scic_port.h | 195 + drivers/scsi/isci/core/scic_remote_device.h | 294 ++ drivers/scsi/isci/core/scic_sds_controller.c | 3804 ++++++++++++++++++++ drivers/scsi/isci/core/scic_sds_controller.h | 722 ++++ .../scsi/isci/core/scic_sds_controller_registers.h | 463 ++ drivers/scsi/isci/core/scic_sds_pci.h | 94 drivers/scsi/isci/core/scic_sds_phy.c | 2726 ++++++++++++++ drivers/scsi/isci/core/scic_sds_phy.h | 476 +++ drivers/scsi/isci/core/scic_sds_phy_registers.h | 248 + drivers/scsi/isci/core/scic_sds_port.c | 2915 +++++++++++++++ drivers/scsi/isci/core/scic_sds_port.h | 499 +++ .../isci/core/scic_sds_port_configuration_agent.c | 863 +++++ .../isci/core/scic_sds_port_configuration_agent.h | 108 + drivers/scsi/isci/core/scic_sds_port_registers.h | 147 + drivers/scsi/isci/core/scic_sds_remote_device.c | 2079 +++++++++++ drivers/scsi/isci/core/scic_sds_remote_device.h | 570 +++ .../scsi/isci/core/scic_sds_remote_node_context.c | 1247 +++++++ .../scsi/isci/core/scic_sds_remote_node_context.h | 323 ++ .../scsi/isci/core/scic_sds_remote_node_table.c | 600 +++ .../scsi/isci/core/scic_sds_remote_node_table.h | 195 + drivers/scsi/isci/core/scic_sds_request.c | 2174 +++++++++++ drivers/scsi/isci/core/scic_sds_request.h | 469 ++ .../scsi/isci/core/scic_sds_smp_remote_device.c | 325 ++ drivers/scsi/isci/core/scic_sds_smp_request.c | 669 ++++ drivers/scsi/isci/core/scic_sds_smp_request.h | 69 drivers/scsi/isci/core/scic_sds_ssp_request.c | 268 + .../scsi/isci/core/scic_sds_stp_packet_request.c | 834 ++++ .../scsi/isci/core/scic_sds_stp_packet_request.h | 153 + drivers/scsi/isci/core/scic_sds_stp_pio_request.h | 116 + .../scsi/isci/core/scic_sds_stp_remote_device.c | 908 +++++ drivers/scsi/isci/core/scic_sds_stp_request.c | 1941 ++++++++++ drivers/scsi/isci/core/scic_sds_stp_request.h | 221 + .../isci/core/scic_sds_unsolicited_frame_control.c | 383 ++ .../isci/core/scic_sds_unsolicited_frame_control.h | 286 ++ drivers/scsi/isci/core/scic_task_request.h | 147 + drivers/scsi/isci/core/scu_completion_codes.h | 283 + drivers/scsi/isci/core/scu_constants.h | 151 + drivers/scsi/isci/core/scu_event_codes.h | 336 ++ drivers/scsi/isci/core/scu_registers.h | 1830 ++++++++++ drivers/scsi/isci/core/scu_remote_node_context.h | 229 + drivers/scsi/isci/core/scu_task_context.h | 942 +++++ drivers/scsi/isci/core/scu_unsolicited_frame.h | 117 + drivers/scsi/isci/core/scu_viit_data.h | 178 + 73 files changed, 39509 insertions(+), 0 deletions(-) create mode 100644 drivers/scsi/isci/core/intel_ata.h create mode 100644 drivers/scsi/isci/core/intel_sas.h create mode 100644 drivers/scsi/isci/core/intel_sat.h create mode 100644 drivers/scsi/isci/core/intel_sata.h create mode 100644 drivers/scsi/isci/core/intel_scsi.h create mode 100644 drivers/scsi/isci/core/sati_device.h create mode 100644 drivers/scsi/isci/core/sati_translator_sequence.h create mode 100644 drivers/scsi/isci/core/sati_types.h create mode 100644 drivers/scsi/isci/core/sci_base_controller.h create mode 100644 drivers/scsi/isci/core/sci_base_memory_descriptor_list.c create mode 100644 drivers/scsi/isci/core/sci_base_memory_descriptor_list.h create mode 100644 drivers/scsi/isci/core/sci_base_phy.h create mode 100644 drivers/scsi/isci/core/sci_base_port.h create mode 100644 drivers/scsi/isci/core/sci_base_remote_device.h create mode 100644 drivers/scsi/isci/core/sci_base_request.h create mode 100644 drivers/scsi/isci/core/sci_base_state.h create mode 100644 drivers/scsi/isci/core/sci_base_state_machine.c create mode 100644 drivers/scsi/isci/core/sci_base_state_machine.h create mode 100644 drivers/scsi/isci/core/sci_controller.h create mode 100644 drivers/scsi/isci/core/sci_controller_constants.h create mode 100644 drivers/scsi/isci/core/sci_memory_descriptor_list.h create mode 100644 drivers/scsi/isci/core/sci_object.h create mode 100644 drivers/scsi/isci/core/sci_pool.h create mode 100644 drivers/scsi/isci/core/sci_status.h create mode 100644 drivers/scsi/isci/core/sci_util.c create mode 100644 drivers/scsi/isci/core/sci_util.h create mode 100644 drivers/scsi/isci/core/scic_config_parameters.h create mode 100644 drivers/scsi/isci/core/scic_controller.h create mode 100644 drivers/scsi/isci/core/scic_io_request.h create mode 100644 drivers/scsi/isci/core/scic_phy.h create mode 100644 drivers/scsi/isci/core/scic_port.h create mode 100644 drivers/scsi/isci/core/scic_remote_device.h create mode 100644 drivers/scsi/isci/core/scic_sds_controller.c create mode 100644 drivers/scsi/isci/core/scic_sds_controller.h create mode 100644 drivers/scsi/isci/core/scic_sds_controller_registers.h create mode 100644 drivers/scsi/isci/core/scic_sds_pci.h create mode 100644 drivers/scsi/isci/core/scic_sds_phy.c create mode 100644 drivers/scsi/isci/core/scic_sds_phy.h create mode 100644 drivers/scsi/isci/core/scic_sds_phy_registers.h create mode 100644 drivers/scsi/isci/core/scic_sds_port.c create mode 100644 drivers/scsi/isci/core/scic_sds_port.h create mode 100644 drivers/scsi/isci/core/scic_sds_port_configuration_agent.c create mode 100644 drivers/scsi/isci/core/scic_sds_port_configuration_agent.h create mode 100644 drivers/scsi/isci/core/scic_sds_port_registers.h create mode 100644 drivers/scsi/isci/core/scic_sds_remote_device.c create mode 100644 drivers/scsi/isci/core/scic_sds_remote_device.h create mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_context.c create mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_context.h create mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_table.c create mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_table.h create mode 100644 drivers/scsi/isci/core/scic_sds_request.c create mode 100644 drivers/scsi/isci/core/scic_sds_request.h create mode 100644 drivers/scsi/isci/core/scic_sds_smp_remote_device.c create mode 100644 drivers/scsi/isci/core/scic_sds_smp_request.c create mode 100644 drivers/scsi/isci/core/scic_sds_smp_request.h create mode 100644 drivers/scsi/isci/core/scic_sds_ssp_request.c create mode 100644 drivers/scsi/isci/core/scic_sds_stp_packet_request.c create mode 100644 drivers/scsi/isci/core/scic_sds_stp_packet_request.h create mode 100644 drivers/scsi/isci/core/scic_sds_stp_pio_request.h create mode 100644 drivers/scsi/isci/core/scic_sds_stp_remote_device.c create mode 100644 drivers/scsi/isci/core/scic_sds_stp_request.c create mode 100644 drivers/scsi/isci/core/scic_sds_stp_request.h create mode 100644 drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.c create mode 100644 drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.h create mode 100644 drivers/scsi/isci/core/scic_task_request.h create mode 100644 drivers/scsi/isci/core/scu_completion_codes.h create mode 100644 drivers/scsi/isci/core/scu_constants.h create mode 100644 drivers/scsi/isci/core/scu_event_codes.h create mode 100644 drivers/scsi/isci/core/scu_registers.h create mode 100644 drivers/scsi/isci/core/scu_remote_node_context.h create mode 100644 drivers/scsi/isci/core/scu_task_context.h create mode 100644 drivers/scsi/isci/core/scu_unsolicited_frame.h create mode 100644 drivers/scsi/isci/core/scu_viit_data.h -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
