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| author |   Chris Metcalf <cmetcalf@tilera.com> | 2013-08-02 12:55:15 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-06 12:55:24 -0400 |
| commit | 90d9dd66957a744831146dbb1a9e4f96a9106100 (patch) | |
| tree | 6a6755c47ff49390891ce3fcf624d37547007671 /arch/tile/include/gxio | |
| parent | tile: support LSI MEGARAID SAS HBA hybrid dma_ops (diff) | |
| download | linux-dev-90d9dd66957a744831146dbb1a9e4f96a9106100.tar.xz linux-dev-90d9dd66957a744831146dbb1a9e4f96a9106100.zip | |
tile PCI RC: support more MSI-X interrupt vectors
To support PCIe devices with higher number of MSI-X interrupt vectors,
e.g. 16 for the LSI RAID card, enhance the Gx RC stack to provide more
MSI-X vectors by using the TRIO Scatter Queues, which provide 8 more
vectors in addition to ~10 from the Map Mem regions.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/include/gxio')
| -rw-r--r-- | arch/tile/include/gxio/iorpc_trio.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/tile/include/gxio/iorpc_trio.h b/arch/tile/include/gxio/iorpc_trio.h index 58105c31228b..d95b96fd6c93 100644 --- a/arch/tile/include/gxio/iorpc_trio.h +++ b/arch/tile/include/gxio/iorpc_trio.h @@ -30,6 +30,7 @@ #define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1404) +#define GXIO_TRIO_OP_ALLOC_SCATTER_QUEUES IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140e) #define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1412) #define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1414) @@ -54,6 +55,10 @@ int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context, unsigned int flags); +int gxio_trio_alloc_scatter_queues(gxio_trio_context_t * context, + unsigned int count, unsigned int first, + unsigned int flags); + int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context, unsigned int count, unsigned int first, unsigned int flags); |