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Message-ID: <6dbb9b57-ef68-44bf-b54e-932954dcba73@intel.com>
Date: Mon, 6 Nov 2023 10:44:51 +0100
From: Wojciech Drewek <wojciech.drewek@...el.com>
To: Paul Greenwalt <paul.greenwalt@...el.com>,
<intel-wired-lan@...ts.osuosl.org>
CC: Dan Nowlin <dan.nowlin@...el.com>, Maciej <maciej.fijalkowski@...el.com>,
<netdev@...r.kernel.org>, <jesse.brandeburg@...el.com>,
<Fijalkowski@...osl.org>, <anthony.l.nguyen@...el.com>, <horms@...nel.org>,
<kuba@...nel.org>, <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH iwl-net] ice: fix DDP package download
for packages without signature segment
On 04.11.2023 19:29, Paul Greenwalt wrote:
> From: Dan Nowlin <dan.nowlin@...el.com>
>
> Commit 3cbdb0343022 ("ice: Add support for E830 DDP package segment")
> incorrectly removed support for package download for packages without a
> signature segment. These packages include the signature buffer inline
> in the configurations buffers, and do not in a signature segment.
>
> Fix package download by providing download support for both packages
> with (ice_download_pkg_with_sig_seg()) and without signature segment
> (ice_download_pkg_without_sig_seg()).
>
> Fixes: 3cbdb0343022 ("ice: Add support for E830 DDP package segment")
> Reported-by: Fijalkowski, Maciej <maciej.fijalkowski@...el.com>
> Signed-off-by: Dan Nowlin <dan.nowlin@...el.com>
> Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
> ---
> drivers/net/ethernet/intel/ice/ice_ddp.c | 106 ++++++++++++++++++++++-
> 1 file changed, 103 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c
> index cfb1580f5850..3f1a11d0252c 100644
> --- a/drivers/net/ethernet/intel/ice/ice_ddp.c
> +++ b/drivers/net/ethernet/intel/ice/ice_ddp.c
> @@ -1479,14 +1479,14 @@ ice_post_dwnld_pkg_actions(struct ice_hw *hw)
> }
>
> /**
> - * ice_download_pkg
> + * ice_download_pkg_with_sig_seg
> * @hw: pointer to the hardware structure
> * @pkg_hdr: pointer to package header
> *
> * Handles the download of a complete package.
> */
> static enum ice_ddp_state
> -ice_download_pkg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr)
> +ice_download_pkg_with_sig_seg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr)
> {
> enum ice_aq_err aq_err = hw->adminq.sq_last_status;
> enum ice_ddp_state state = ICE_DDP_PKG_ERR;
> @@ -1519,6 +1519,106 @@ ice_download_pkg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr)
> state = ice_post_dwnld_pkg_actions(hw);
>
> ice_release_global_cfg_lock(hw);
> +
> + return state;
> +}
> +
> +/**
> + * ice_dwnld_cfg_bufs
> + * @hw: pointer to the hardware structure
> + * @bufs: pointer to an array of buffers
> + * @count: the number of buffers in the array
> + *
> + * Obtains global config lock and downloads the package configuration buffers
> + * to the firmware.
> + */
> +static enum ice_ddp_state
> +ice_dwnld_cfg_bufs(struct ice_hw *hw, struct ice_buf *bufs, u32 count)
> +{
> + enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS;
> + struct ice_buf_hdr *bh;
> + int status;
> +
> + if (!bufs || !count)
> + return ICE_DDP_PKG_ERR;
> +
> + /* If the first buffer's first section has its metadata bit set
> + * then there are no buffers to be downloaded, and the operation is
> + * considered a success.
> + */
> + bh = (struct ice_buf_hdr *)bufs;
> + if (le32_to_cpu(bh->section_entry[0].type) & ICE_METADATA_BUF)
> + return ICE_DDP_PKG_SUCCESS;
> +
> + status = ice_acquire_global_cfg_lock(hw, ICE_RES_WRITE);
> + if (status) {
> + if (status == -EALREADY)
> + return ICE_DDP_PKG_ALREADY_LOADED;
> + return ice_map_aq_err_to_ddp_state(hw->adminq.sq_last_status);
> + }
> +
> + state = ice_dwnld_cfg_bufs_no_lock(hw, bufs, 0, count, true);
> + if (!state)
> + state = ice_post_dwnld_pkg_actions(hw);
> +
> + ice_release_global_cfg_lock(hw);
> +
> + return state;
> +}
> +
> +/**
> + * ice_download_pkg_without_sig_seg
> + * @hw: pointer to the hardware structure
> + * @ice_seg: pointer to the segment of the package to be downloaded
> + *
> + * Handles the download of a complete package without signature segment.
> + */
> +static enum ice_ddp_state
> +ice_download_pkg_without_sig_seg(struct ice_hw *hw, struct ice_seg *ice_seg)
> +{
> + struct ice_buf_table *ice_buf_tbl;
> + enum ice_ddp_state state;
> +
> + ice_debug(hw, ICE_DBG_PKG, "Segment format version: %d.%d.%d.%d\n",
> + ice_seg->hdr.seg_format_ver.major,
> + ice_seg->hdr.seg_format_ver.minor,
> + ice_seg->hdr.seg_format_ver.update,
> + ice_seg->hdr.seg_format_ver.draft);
> +
> + ice_debug(hw, ICE_DBG_PKG, "Seg: type 0x%X, size %d, name %s\n",
> + le32_to_cpu(ice_seg->hdr.seg_type),
> + le32_to_cpu(ice_seg->hdr.seg_size), ice_seg->hdr.seg_id);
> +
> + ice_buf_tbl = ice_find_buf_table(ice_seg);
> +
> + ice_debug(hw, ICE_DBG_PKG, "Seg buf count: %d\n",
> + le32_to_cpu(ice_buf_tbl->buf_count));
> +
> + state = ice_dwnld_cfg_bufs(hw, ice_buf_tbl->buf_array,
> + le32_to_cpu(ice_buf_tbl->buf_count));
> +
> + return state;
> +}
> +
> +/**
> + * ice_download_pkg
> + * @hw: pointer to the hardware structure
> + * @pkg_hdr: pointer to package header
> + * @ice_seg: pointer to the segment of the package to be downloaded
> + *
> + * Handles the download of a complete package.
> + */
> +static enum ice_ddp_state
> +ice_download_pkg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr,
> + struct ice_seg *ice_seg)
> +{
> + enum ice_ddp_state state;
> +
> + if (hw->pkg_has_signing_seg)
> + state = ice_download_pkg_with_sig_seg(hw, pkg_hdr);
> + else
> + state = ice_download_pkg_without_sig_seg(hw, ice_seg);
> +
> ice_post_pkg_dwnld_vlan_mode_cfg(hw);
>
> return state;
> @@ -2083,7 +2183,7 @@ enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buf, u32 len)
>
> /* initialize package hints and then download package */
> ice_init_pkg_hints(hw, seg);
> - state = ice_download_pkg(hw, pkg);
> + state = ice_download_pkg(hw, pkg, seg);
> if (state == ICE_DDP_PKG_ALREADY_LOADED) {
> ice_debug(hw, ICE_DBG_INIT,
> "package previously loaded - no work.\n");
>
> base-commit: 016b9332a3346e97a6cacffea0f9dc10e1235a75
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