Re: [dpdk-dev] [PATCH v6 1/3] net/ice: load OS default package

["Zhang, Qi Z" <qi.z.zhang@intel.com>]

> -----Original Message-----
> From: Yang, Qiming
> Sent: Monday, March 25, 2019 5:01 PM
> To: dev@dpdk.org
> Cc: Zhang, Qi Z <qi.z.zhang@intel.com>; Yang, Qiming <qiming.yang@intel.com>
> Subject: [PATCH v6 1/3] net/ice: load OS default package
> 
> This patch enables package downloading to the device. The package is to be in
> the /lib/firmware/intel/ice/ddp directory and named ice.pkg.
> The package is shared by the kernel driver and the DPDK PMD.
> 
> There is no per device package be supported so far, all the devices can only
> download the same package. This limitation will be removed in the future.
> 
> Signed-off-by: Qiming Yang <qiming.yang@intel.com>
> ---
>  doc/guides/nics/ice.rst                |  9 ++++
>  doc/guides/rel_notes/release_19_05.rst |  4 ++
>  drivers/net/ice/ice_ethdev.c           | 77
> ++++++++++++++++++++++++++++++++++
>  3 files changed, 90 insertions(+)
> 
> diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst index
> 3998d5e..6410ec5 100644
> --- a/doc/guides/nics/ice.rst
> +++ b/doc/guides/nics/ice.rst
> @@ -84,6 +84,15 @@ To start ``testpmd``, and add vlan 10 to port 0:
>  Limitations or Known issues
>  ---------------------------
> 
> +The Intel E810 requires a programmable pipeline package be downloaded
> +by the driver to support normal operations. The E810 has a limited
> +functionality built in to allow PXE boot and other use cases, but the
> +driver must download a package file during the driver initialization
> +stage. The file must be in the /lib/firmware/intel/ice/ddp directory
> +and it must be named ice.pkg. A symbolic link to this file is also ok.
> +The same package file is used by both the kernel driver and the DPDK PMD.
> +
> +
>  19.02 limitation
>  ~~~~~~~~~~~~~~~~
> 
> diff --git a/doc/guides/rel_notes/release_19_05.rst
> b/doc/guides/rel_notes/release_19_05.rst
> index 61a2c73..b73938a 100644
> --- a/doc/guides/rel_notes/release_19_05.rst
> +++ b/doc/guides/rel_notes/release_19_05.rst
> @@ -91,6 +91,10 @@ New Features
> 
>    * Added promiscuous mode support.
> 
> +* **Updated the ice driver.**
> +
> +  * Added package download support.
> +
> 
>  Removed Items
>  -------------
> diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index
> a23c63a..c2a03c3 100644
> --- a/drivers/net/ice/ice_ethdev.c
> +++ b/drivers/net/ice/ice_ethdev.c
> @@ -4,12 +4,19 @@
> 
>  #include <rte_ethdev_pci.h>
> 
> +	
Unnecessary empty line.

> +#include <stdio.h>
> +#include <sys/types.h>
> +#include <sys/stat.h>
> +#include <unistd.h>
> +
>  #include "base/ice_sched.h"
>  #include "ice_ethdev.h"
>  #include "ice_rxtx.h"
> 
>  #define ICE_MAX_QP_NUM "max_queue_pair_num"
>  #define ICE_DFLT_OUTER_TAG_TYPE ICE_AQ_VSI_OUTER_TAG_VLAN_9100
> +#define ICE_DFLT_PKG_FILE "/lib/firmware/intel/ice/ddp/ice.pkg"
> 
>  int ice_logtype_init;
>  int ice_logtype_driver;
> @@ -1259,6 +1266,69 @@ ice_pf_setup(struct ice_pf *pf)
>  	return 0;
>  }
> 
> +static int ice_load_pkg(struct rte_eth_dev *dev) {
> +	struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> +	const char *pkg_file = ICE_DFLT_PKG_FILE;
> +	int err;
> +	uint8_t *buf;
> +	int buf_len;
> +	FILE *file;
> +	struct stat fstat;
> +
> +	file = fopen(pkg_file, "rb");
> +	if (!file)  {
> +		PMD_INIT_LOG(ERR, "failed to open file: %s\n", pkg_file);
> +		return -1;
> +	}
> +
> +	err = stat(pkg_file, &fstat);
> +	if (err) {
> +		PMD_INIT_LOG(ERR, "failed to get file stats\n");
> +		fclose(file);
> +		return err;
> +	}
> +
> +	buf_len = fstat.st_size;
> +	buf = rte_malloc(NULL, buf_len, 0);
> +
> +	if (!buf) {
> +		PMD_INIT_LOG(ERR, "failed to allocate buf of size %d"
> +				  "for package\n", buf_len);

No need to split a string.

> +		fclose(file);
> +		return -1;
> +	}
> +
> +	err = fread(buf, buf_len, 1, file);
> +	if (err != 1) {
> +		PMD_INIT_LOG(ERR, "failed to read package data\n");
> +		fclose(file);
> +		err = -1;
> +		goto fail_exit;
> +	}
> +
> +	fclose(file);
> +
> +	err = ice_copy_and_init_pkg(hw, buf, buf_len);
> +	if (err) {
> +		PMD_INIT_LOG(ERR, "ice_copy_and_init_hw failed: %d\n", err);
> +		goto fail_exit;
> +	}
> +	err = ice_init_hw_tbls(hw);
> +	if (err) {
> +		PMD_INIT_LOG(ERR, "ice_init_hw_tbls failed: %d\n", err);
> +		goto fail_init_tbls;
> +	}
> +
> +	return 0;
> +
> +fail_init_tbls:
> +	rte_free(hw->pkg_copy);
> +fail_exit:
> +	rte_free(buf);
> +	return err;
> +}
> +
>  static int
>  ice_dev_init(struct rte_eth_dev *dev)
>  {
> @@ -1298,6 +1368,12 @@ ice_dev_init(struct rte_eth_dev *dev)
>  		return -EINVAL;
>  	}
> 
> +	ret = ice_load_pkg(dev);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failed to load the DDP package");
> +		goto err_load_pkg;
> +	}
> +
>  	PMD_INIT_LOG(INFO, "FW %d.%d.%05d API %d.%d",
>  		     hw->fw_maj_ver, hw->fw_min_ver, hw->fw_build,
>  		     hw->api_maj_ver, hw->api_min_ver); @@ -1343,6 +1419,7 @@
> ice_dev_init(struct rte_eth_dev *dev)
>  err_msix_pool_init:
>  	rte_free(dev->data->mac_addrs);
>  err_init_mac:
> +err_load_pkg:
>  	ice_sched_cleanup_all(hw);
>  	rte_free(hw->port_info);
>  	ice_shutdown_all_ctrlq(hw);
> --
> 2.9.5