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hw: Add support for LSI SAS1068 (mptsas) device

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This adds the SAS1068 device, a SAS disk controller used in VMware that
is oldish but widely supported and has decent performance.  Unlike
megasas, it presents itself as a SAS controller and not as a RAID
controller.  The device corresponds to the mptsas kernel driver in
Linux.

A few small things in the device setup are based on Don Slutz's old
patch, but the device emulation was written from scratch based on Don's
SeaBIOS patch and on the FreeBSD and Linux drivers.  It is 2400 lines
shorter than Don's patch (and roughly the same size as MegaSAS---also
because it doesn't support the similar SPI controller), implements SCSI
task management functions (with asynchronous cancellation), supports
big-endian hosts, has complete support for migration and follows the
QEMU coding standards much more closely.

To write the driver, I first split Don's patch in two parts, with
the configuration bits in one file and the rest in a separate file.
I first left mptconfig.c in place and rewrote the rest, then deleted
mptconfig.c as well.  The configuration pages are still based mostly on
VirtualBox's, though not exactly the same.  However, the implementation
is completely different.  The contents of the pages themselves should
not be copyrightable.

Signed-off-by: Don Slutz <Don@CloudSwitch.com>
Message-Id: <1347382813-5662-1-git-send-email-Don@CloudSwitch.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-10-27 18:26:06 +01:00
parent 9fd7e85938
commit e351b82611
9 changed files with 3827 additions and 0 deletions
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@ -726,6 +726,28 @@ lm32_uart_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
lm32_uart_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
lm32_uart_irq_state(int level) "irq state %d"
# hw/scsi/mptsas.c
mptsas_command_complete(void *dev, uint32_t ctx, uint32_t status, uint32_t resid) "dev %p context 0x%08x status %x resid %d"
mptsas_diag_read(void *dev, uint32_t addr, uint32_t val) "dev %p addr 0x%08x value 0x%08x"
mptsas_diag_write(void *dev, uint32_t addr, uint32_t val) "dev %p addr 0x%08x value 0x%08x"
mptsas_irq_intx(void *dev, int level) "dev %p level %d"
mptsas_irq_msi(void *dev) "dev %p "
mptsas_mmio_read(void *dev, uint32_t addr, uint32_t val) "dev %p addr 0x%08x value 0x%x"
mptsas_mmio_unhandled_read(void *dev, uint32_t addr) "dev %p addr 0x%08x"
mptsas_mmio_unhandled_write(void *dev, uint32_t addr, uint32_t val) "dev %p addr 0x%08x value 0x%x"
mptsas_mmio_write(void *dev, uint32_t addr, uint32_t val) "dev %p addr 0x%08x value 0x%x"
mptsas_process_message(void *dev, int msg, uint32_t ctx) "dev %p cmd %d context 0x%08x\n"
mptsas_process_scsi_io_request(void *dev, int bus, int target, int lun, uint64_t len) "dev %p dev %d:%d:%d length %"PRIu64""
mptsas_reset(void *dev) "dev %p "
mptsas_scsi_overflow(void *dev, uint32_t ctx, uint64_t req, uint64_t found) "dev %p context 0x%08x: %"PRIu64"/%"PRIu64""
mptsas_sgl_overflow(void *dev, uint32_t ctx, uint64_t req, uint64_t found) "dev %p context 0x%08x: %"PRIu64"/%"PRIu64""
mptsas_unhandled_cmd(void *dev, uint32_t ctx, uint8_t msg_cmd) "dev %p context 0x%08x: Unhandled cmd %x"
mptsas_unhandled_doorbell_cmd(void *dev, int cmd) "dev %p value 0x%08x"
# hw/scsi/mptconfig.c
mptsas_config_sas_device(void *dev, int address, int port, int phy_handle, int dev_handle, int page) "dev %p address %d (port %d, handles: phy %d dev %d) page %d"
mptsas_config_sas_phy(void *dev, int address, int port, int phy_handle, int dev_handle, int page) "dev %p address %d (port %d, handles: phy %d dev %d) page %d"
# hw/scsi/megasas.c
megasas_init_firmware(uint64_t pa) "pa %" PRIx64 " "
megasas_init_queue(uint64_t queue_pa, int queue_len, uint64_t head, uint64_t tail, uint32_t flags) "queue at %" PRIx64 " len %d head %" PRIx64 " tail %" PRIx64 " flags %x"