3bda4941ce
to map, and technically this isn't allowed. Functionally, it works OK (at least on x86) to call bus_dmamap_load with a NULL data pointer and zero length, so this is primarily for correctness and consistency with other drivers. While here, remove check in isci_io_request_construct for nseg==0. Previously, bus_dmamap_load would pass nseg==1, even for case where buffer is NULL and length = 0, which allowed CAM_DIR_NONE CCBs to get processed. This check is not correct though, and needed to be removed both for the changes elsewhere in this patch, as well as jeff's preliminary bus_dmamap_load_ccb patch (which uncovered all of this in the first place). MFC after: 3 days |
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|---|---|---|
| .. | ||
| scil | ||
| environment.h | ||
| isci_controller.c | ||
| isci_domain.c | ||
| isci_interrupt.c | ||
| isci_io_request.c | ||
| isci_logger.c | ||
| isci_oem_parameters.c | ||
| isci_remote_device.c | ||
| isci_sysctl.c | ||
| isci_task_request.c | ||
| isci_timer.c | ||
| isci.c | ||
| isci.h | ||
| README | ||
| sci_environment.h | ||
| types.h | ||
FreeBSD Driver for Intel(R) C600 SAS Controller =============================================== This driver has been developed for use with FreeBSD, version 9.0 and later. This driver uses an OS-agnostic abstraction layer library named SCIL that is published by Intel specifically for the C600 SAS controller. The SAS controller has no firmware, so the driver is extensive and using SCIL minimizes the development and maintenance cost of the driver. The FreeBSD implementation files are in the isci directory, and SCIL files are in the isci/scil subdirectory. As Intel publishes new versions of SCIL (to add features or fix bugs), the isci/scil subdirectory will be updated appropriately.