Upon chunk mode there may be multiple images that will be read from the
device upon STOP_COPY.
This patch is some preparation for that mode by replacing the relevant
stuff to a better matching name.
As part of that, be stricter to recognize PRE_COPY error only when it
didn't occur on a STOP_COPY chunk.
Signed-off-by: Yishai Hadas <yishaih@xxxxxxxxxx>
---
drivers/vfio/pci/mlx5/cmd.c | 15 ++++++++-------
drivers/vfio/pci/mlx5/cmd.h | 4 ++--
2 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c
index e70d84bf2043..7b48a9b80bc6 100644
--- a/drivers/vfio/pci/mlx5/cmd.c
+++ b/drivers/vfio/pci/mlx5/cmd.c
@@ -503,7 +503,8 @@ void mlx5vf_mig_file_cleanup_cb(struct work_struct *_work)
mlx5vf_put_data_buffer(async_data->buf);
if (async_data->header_buf)
mlx5vf_put_data_buffer(async_data->header_buf);
- if (async_data->status == MLX5_CMD_STAT_BAD_RES_STATE_ERR)
+ if (!async_data->stop_copy_chunk &&
+ async_data->status == MLX5_CMD_STAT_BAD_RES_STATE_ERR)
migf->state = MLX5_MIGF_STATE_PRE_COPY_ERROR;
else
migf->state = MLX5_MIGF_STATE_ERROR;
@@ -553,7 +554,7 @@ static void mlx5vf_save_callback(int status, struct mlx5_async_work *context)
size_t image_size;
unsigned long flags;
bool initial_pre_copy = migf->state != MLX5_MIGF_STATE_PRE_COPY &&
- !async_data->last_chunk;
+ !async_data->stop_copy_chunk;
image_size = MLX5_GET(save_vhca_state_out, async_data->out,
actual_image_size);
@@ -571,7 +572,7 @@ static void mlx5vf_save_callback(int status, struct mlx5_async_work *context)
spin_unlock_irqrestore(&migf->list_lock, flags);
if (initial_pre_copy)
migf->pre_copy_initial_bytes += image_size;
- migf->state = async_data->last_chunk ?
+ migf->state = async_data->stop_copy_chunk ?
MLX5_MIGF_STATE_COMPLETE : MLX5_MIGF_STATE_PRE_COPY;
wake_up_interruptible(&migf->poll_wait);
mlx5vf_save_callback_complete(migf, async_data);
@@ -623,7 +624,7 @@ int mlx5vf_cmd_save_vhca_state(struct mlx5vf_pci_core_device *mvdev,
async_data = &migf->async_data;
async_data->buf = buf;
- async_data->last_chunk = !track;
+ async_data->stop_copy_chunk = !track;
async_data->out = kvzalloc(out_size, GFP_KERNEL);
if (!async_data->out) {
err = -ENOMEM;
@@ -631,7 +632,7 @@ int mlx5vf_cmd_save_vhca_state(struct mlx5vf_pci_core_device *mvdev,
}
if (MLX5VF_PRE_COPY_SUPP(mvdev)) {
- if (async_data->last_chunk && migf->buf_header) {
+ if (async_data->stop_copy_chunk && migf->buf_header) {
header_buf = migf->buf_header;
migf->buf_header = NULL;
} else {
@@ -644,8 +645,8 @@ int mlx5vf_cmd_save_vhca_state(struct mlx5vf_pci_core_device *mvdev,
}
}
- if (async_data->last_chunk)
- migf->state = MLX5_MIGF_STATE_SAVE_LAST;
+ if (async_data->stop_copy_chunk)
+ migf->state = MLX5_MIGF_STATE_SAVE_STOP_COPY_CHUNK;
async_data->header_buf = header_buf;
get_file(migf->filp);
diff --git a/drivers/vfio/pci/mlx5/cmd.h b/drivers/vfio/pci/mlx5/cmd.h
index 4fb37598c8e5..ac5dca5fe6b1 100644
--- a/drivers/vfio/pci/mlx5/cmd.h
+++ b/drivers/vfio/pci/mlx5/cmd.h
@@ -20,7 +20,7 @@ enum mlx5_vf_migf_state {
MLX5_MIGF_STATE_ERROR = 1,
MLX5_MIGF_STATE_PRE_COPY_ERROR,
MLX5_MIGF_STATE_PRE_COPY,
- MLX5_MIGF_STATE_SAVE_LAST,
+ MLX5_MIGF_STATE_SAVE_STOP_COPY_CHUNK,
MLX5_MIGF_STATE_COMPLETE,
};
@@ -78,7 +78,7 @@ struct mlx5vf_async_data {
struct mlx5_vhca_data_buffer *buf;
struct mlx5_vhca_data_buffer *header_buf;
int status;
- u8 last_chunk:1;
+ u8 stop_copy_chunk:1;
void *out;
};
--
2.18.1
