mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Longfang Liu <liulongfang@huawei.com>
To: <alex.williamson@redhat.com>, <jgg@nvidia.com>,
	<shameerali.kolothum.thodi@huawei.com>
Cc: <cohuck@redhat.com>, <linux-kernel@vger.kernel.org>,
	<linuxarm@openeuler.org>, <liulongfang@huawei.com>
Subject: [PATCH v2 2/5] hisi_acc_vfio_pci: Fix device data address combination problem
Date: Thu, 22 Sep 2022 16:39:25 +0800	[thread overview]
Message-ID: <20220922083928.58797-3-liulongfang@huawei.com> (raw)
In-Reply-To: <20220922083928.58797-1-liulongfang@huawei.com>

The queue address of the accelerator device should be combined into
a dma address in a way of combining the low and high bits.
The previous combination is wrong and needs to be modified.

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
---
 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
index 7ce656a7cf5c..0638a8a6b0c1 100644
--- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
+++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
@@ -528,12 +528,12 @@ static int vf_qm_state_save(struct hisi_acc_vf_core_device *hisi_acc_vdev,
 		return -EINVAL;
 
 	/* Every reg is 32 bit, the dma address is 64 bit. */
-	vf_data->eqe_dma = vf_data->qm_eqc_dw[2];
+	vf_data->eqe_dma = vf_data->qm_eqc_dw[1];
 	vf_data->eqe_dma <<= QM_XQC_ADDR_OFFSET;
-	vf_data->eqe_dma |= vf_data->qm_eqc_dw[1];
-	vf_data->aeqe_dma = vf_data->qm_aeqc_dw[2];
+	vf_data->eqe_dma |= vf_data->qm_eqc_dw[0];
+	vf_data->aeqe_dma = vf_data->qm_aeqc_dw[1];
 	vf_data->aeqe_dma <<= QM_XQC_ADDR_OFFSET;
-	vf_data->aeqe_dma |= vf_data->qm_aeqc_dw[1];
+	vf_data->aeqe_dma |= vf_data->qm_aeqc_dw[0];
 
 	/* Through SQC_BT/CQC_BT to get sqc and cqc address */
 	ret = qm_get_sqc(vf_qm, &vf_data->sqc_dma);
-- 
2.33.0


  parent reply	other threads:[~2022-09-22  8:43 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22  8:39 [PATCH v2 0/5] Fix some bugs and clean code issues Longfang Liu
2022-09-22  8:39 ` [PATCH v2 1/5] hisi_acc_vfio_pci: Fixes error return code issue Longfang Liu
2022-09-22  8:39 ` Longfang Liu [this message]
2022-09-22  8:39 ` [PATCH v2 3/5] hisi_acc_vfio_pci: Remove useless function parameter Longfang Liu
2022-09-23 10:30   ` Shameerali Kolothum Thodi
2022-09-24  1:45     ` liulongfang
2022-09-24  1:49       ` liulongfang
2022-09-22  8:39 ` [PATCH v2 4/5] hisi_acc_vfio_pci: Remove useless macro definitions Longfang Liu
2022-09-22  8:39 ` [PATCH v2 5/5] hisi_acc_vfio_pci: Update some log and comment formats Longfang Liu
2022-09-22 14:18 ` [PATCH v2 0/5] Fix some bugs and clean code issues Jason Gunthorpe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220922083928.58797-3-liulongfang@huawei.com \
    --to=liulongfang@huawei.com \
    --cc=alex.williamson@redhat.com \
    --cc=cohuck@redhat.com \
    --cc=jgg@nvidia.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxarm@openeuler.org \
    --cc=shameerali.kolothum.thodi@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®