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From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, eagostini@nvidia.com
Subject: [PATCH 0/2] add API to get GPU physical address
Date: Thu,  5 Sep 2024 21:16:12 -0700	[thread overview]
Message-ID: <20240906041614.36962-1-ajit.khaparde@broadcom.com> (raw)

Add API to get the physical address of the peer GPU.
This should allow some NIC hardware to directly use the
physical address for DMA instead of the CUDA Unified Memory
provided by current mem_map calls.

A dependent code change has been pushed to the gdrcopy tree
on github. The pull request is open here.
https://github.com/NVIDIA/gdrcopy/pull/304

Please review.

Thanks

Ajit Khaparde (2):
  gpudev: add API to get GPU physical address
  gpu/cuda: extend cuda code to get PA of GPU

 drivers/gpu/cuda/common.h  |   2 +
 drivers/gpu/cuda/cuda.c    | 117 ++++++++++++++++++++++++++++++-------
 drivers/gpu/cuda/gdrcopy.c |  50 ++++++++++++++++
 lib/gpudev/gpudev.c        |  61 +++++++++++++++++++
 lib/gpudev/gpudev_driver.h |   6 ++
 lib/gpudev/rte_gpudev.h    |  49 ++++++++++++++++
 lib/gpudev/version.map     |   2 +
 7 files changed, 265 insertions(+), 22 deletions(-)

-- 
2.39.3 (Apple Git-146)


             reply	other threads:[~2024-09-06  4:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-06  4:16 Ajit Khaparde [this message]
2024-09-06  4:16 ` [PATCH 1/2] gpudev: " Ajit Khaparde
2024-09-06  4:16 ` [PATCH 2/2] gpu/cuda: extend cuda code to get PA of GPU Ajit Khaparde

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