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>
Acked-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

doc/guides/nics/ice.rst

@@ -102,6 +102,15 @@ 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
 ~~~~~~~~~~~~~~~~
 

doc/guides/rel_notes/release_19_05.rst

@@ -103,6 +103,7 @@ New Features
 * **Updated the ice driver.**
 
   * Added support of SSE and AVX2 instructions in Rx and Tx paths.
+  * Added package download support.
 
 * **Updated the QuickAssist Technology PMD.**
 

drivers/net/ice/ice_ethdev.c

@@ -4,12 +4,18 @@
 
 #include <rte_ethdev_pci.h>
 
+#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 +1265,69 @@ 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);
+		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 +1367,12 @@ 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 +1418,7 @@ 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);