| Message ID | 1447157983-13519-1-git-send-email-hch@lst.de (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
> + > + /* > + * This device supports the IB "base memory management extension", > + * which includes support for fast registrations (IB_WR_REG_MR, > + * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should > + * also be set by any iWarp device which must support FRs to comply > + * to the iWarp verbs spec. iWarp devices also support the > + * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the > + * stag. > + */ Kinda weird that READ_WITH_INV came in without a device cap for it. Looks good, Reviewed-by: Sagi Grimberg <sagig@mellanox.com> -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Nov 10, 2015 at 01:19:43PM +0100, Christoph Hellwig wrote: > Just IB_DEVICE_LOCAL_DMA_LKEY and IB_DEVICE_MEM_MGT_EXTENSIONS for now > as I'm most familar with those. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Looks right to me Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 45ce36e..6034f92 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -120,6 +120,14 @@ enum ib_device_cap_flags { IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), IB_DEVICE_SRQ_RESIZE = (1<<13), IB_DEVICE_N_NOTIFY_CQ = (1<<14), + + /* + * This device supports a per-device lkey or stag that can be + * used without performing a memory registration for the local + * memory. Note that ULPs should never check this flag, but + * instead of use the local_dma_lkey flag in the ib_pd structure, + * which will always contain a usable lkey. + */ IB_DEVICE_LOCAL_DMA_LKEY = (1<<15), IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */ IB_DEVICE_MEM_WINDOW = (1<<17), @@ -133,6 +141,16 @@ enum ib_device_cap_flags { IB_DEVICE_UD_IP_CSUM = (1<<18), IB_DEVICE_UD_TSO = (1<<19), IB_DEVICE_XRC = (1<<20), + + /* + * This device supports the IB "base memory management extension", + * which includes support for fast registrations (IB_WR_REG_MR, + * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should + * also be set by any iWarp device which must support FRs to comply + * to the iWarp verbs spec. iWarp devices also support the + * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the + * stag. + */ IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21), IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22), IB_DEVICE_MEM_WINDOW_TYPE_2A = (1<<23),
Just IB_DEVICE_LOCAL_DMA_LKEY and IB_DEVICE_MEM_MGT_EXTENSIONS for now as I'm most familar with those. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/rdma/ib_verbs.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)