[dpdk-dev] [PATCH v6 2/6] net/i40e: add dynamic device profile processing

[Xing, Beilei]

> -----Original Message-----
> From: Wu, Jingjing
> Sent: Wednesday, March 29, 2017 9:17 PM
> To: Xing, Beilei <beilei.xing at intel.com>
> Cc: Zhang, Helin <helin.zhang at intel.com>; Iremonger, Bernard
> <bernard.iremonger at intel.com>; dev at dpdk.org
> Subject: RE: [PATCH v6 2/6] net/i40e: add dynamic device profile processing
> 
> Looks good to me, only minor comments like below:
> 
> > -----Original Message-----
> > From: Xing, Beilei
> > Sent: Wednesday, March 29, 2017 8:27 PM
> > To: Wu, Jingjing <jingjing.wu at intel.com>
> > Cc: Zhang, Helin <helin.zhang at intel.com>; Iremonger, Bernard
> > <bernard.iremonger at intel.com>; dev at dpdk.org
> > Subject: [PATCH v6 2/6] net/i40e: add dynamic device profile
> > processing
> >
> > Add support for adding a dynamic device profile.
> >
> > Signed-off-by: Beilei Xing <beilei.xing at intel.com>
> > ---
> >  drivers/net/i40e/i40e_ethdev.c            | 199
> > ++++++++++++++++++++++++++++++
> >  drivers/net/i40e/rte_pmd_i40e.h           |  58 +++++++++
> >  drivers/net/i40e/rte_pmd_i40e_version.map |   1 +
> >  3 files changed, 258 insertions(+)
> >
> > diff --git a/drivers/net/i40e/i40e_ethdev.c
> > b/drivers/net/i40e/i40e_ethdev.c index 2063603..764764f 100644
> > --- a/drivers/net/i40e/i40e_ethdev.c
> > +++ b/drivers/net/i40e/i40e_ethdev.c
> > @@ -11708,3 +11708,202 @@ rte_pmd_i40e_set_tc_strict_prio(uint8_t
> > port, uint8_t tc_map)
> >
> >  	return ret;
> >  }
> > +
> > +static void
> > +i40e_generate_profile_info_sec(char *name, struct i40e_ddp_version
> *version,
> > +			       uint32_t track_id, uint8_t *profile_info_sec,
> > +			       bool add)
> > +{
> > +	struct i40e_profile_section_header *sec = NULL;
> > +	struct i40e_profile_info *pinfo;
> > +
> > +	sec = (struct i40e_profile_section_header *)profile_info_sec;
> > +	sec->tbl_size = 1;
> > +	sec->data_end = sizeof(struct i40e_profile_section_header) +
> > +		sizeof(struct i40e_profile_info);
> > +	sec->section.type = SECTION_TYPE_INFO;
> > +	sec->section.offset = sizeof(struct i40e_profile_section_header);
> > +	sec->section.size = sizeof(struct i40e_profile_info);
> > +	pinfo = (struct i40e_profile_info *)(profile_info_sec +
> > +					     sec->section.offset);
> > +	pinfo->track_id = track_id;
> > +	memcpy(pinfo->name, name, I40E_DDP_NAME_SIZE);
> > +	memcpy(&pinfo->version, version, sizeof(struct i40e_ddp_version));
> > +	if (add)
> > +		pinfo->op = I40E_DDP_ADD_TRACKID;
> > +	else
> > +		pinfo->op = I40E_DDP_REMOVE_TRACKID; }
> > +
> > +static enum i40e_status_code
> > +i40e_add_rm_profile_info(struct i40e_hw *hw, uint8_t
> > +*profile_info_sec) {
> > +	enum i40e_status_code status = I40E_SUCCESS;
> > +	struct i40e_profile_section_header *sec;
> > +	uint32_t track_id;
> > +	uint32_t offset = 0, info = 0;
> 
> Cannot set more than one vars in one line according to the coding style.
> uint32_t offset = 0;
> uint32_t info = 0;
> 

OK, thanks.
> 
> 
> > +/* Check if the profile info exists */ static int
> > +i40e_check_profile_info(uint8_t port, uint8_t *profile_info_sec) {
> > +	struct rte_eth_dev *dev = &rte_eth_devices[port];
> > +	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data-
> > >dev_private);
> > +	uint8_t *buff;
> > +	struct rte_pmd_i40e_profile_list *p_list;
> > +	struct rte_pmd_i40e_profile_info *pinfo, *p;
> > +	uint32_t i;
> > +	int ret;
> > +
> > +	buff = rte_zmalloc("pinfo_list",
> > +			   (I40E_PROFILE_INFO_SIZE *
> > I40E_MAX_PROFILE_NUM + 4),
> > +			   0);
> > +	if (!buff) {
> > +		PMD_DRV_LOG(ERR, "failed to allocate memory");
> > +		return -1;
> > +	}
> > +
> > +	ret = i40e_aq_get_ddp_list(hw, (void *)buff,
> > +		      (I40E_PROFILE_INFO_SIZE * I40E_MAX_PROFILE_NUM + 4),
> > +		      0, NULL);
> > +	if (ret) {
> > +		PMD_DRV_LOG(ERR, "Failed to get profile info list.");
> > +		rte_free(buff);
> > +		return -1;
> > +	}
> > +	p_list = (struct rte_pmd_i40e_profile_list *)buff;
> > +	pinfo = (struct rte_pmd_i40e_profile_info *)(profile_info_sec +
> > +			     sizeof(struct i40e_profile_section_header));
> > +	for (i = 0; i < p_list->p_count; i++) {
> > +		p = &p_list->p_info[i];
> > +		if ((pinfo->track_id == p->track_id) &&
> > +		    !memcmp(&pinfo->version, &p->version,
> > +			    sizeof(struct i40e_ddp_version)) &&
> > +		    !memcmp(&pinfo->name, &p->name,
> > +			    I40E_DDP_NAME_SIZE)) {
> > +			PMD_DRV_LOG(INFO, "Profile exists.");
> > +			rte_free(buff);
> > +			return 1;
> > +		}
> > +	}
> > +
> > +	rte_free(buff);
> > +	return 0;
> > +}
> > +
> > +int
> > +rte_pmd_i40e_process_ddp_package(uint8_t port, uint8_t *buff,
> > +				 uint32_t size,
> > +				 enum rte_pmd_i40e_package_op op) {
> > +	struct rte_eth_dev *dev;
> > +	struct i40e_hw *hw;
> > +	struct i40e_package_header *pkg_hdr;
> > +	struct i40e_generic_seg_header *profile_seg_hdr;
> > +	struct i40e_generic_seg_header *metadata_seg_hdr;
> > +	uint32_t track_id;
> > +	uint8_t *profile_info_sec;
> > +	int is_exist;
> > +	enum i40e_status_code status = I40E_SUCCESS;
> > +
> > +	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
> > +
> > +	dev = &rte_eth_devices[port];
> > +
> > +	if (!is_device_supported(dev, &rte_i40e_pmd))
> > +		return -ENOTSUP;
> > +
> > +	hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > +
> > +	if (size < (sizeof(struct i40e_package_header) +
> > +		    sizeof(struct i40e_metadata_segment) +
> > +		    sizeof(uint32_t) * 2)) {
> > +		PMD_DRV_LOG(ERR, "Buff is invalid.");
> > +		return -EINVAL;
> > +	}
> > +
> > +	pkg_hdr = (struct i40e_package_header *)buff;
> > +
> > +	if (!pkg_hdr) {
> > +		PMD_DRV_LOG(ERR, "Failed to fill the package structure");
> > +		return -EINVAL;
> > +	}
> > +
> > +	if (pkg_hdr->segment_count < 2) {
> > +		PMD_DRV_LOG(ERR, "Segment_count should be 2 at least.");
> > +		return -EINVAL;
> > +	}
> > +
> > +	/* Find metadata segment */
> > +	metadata_seg_hdr =
> > i40e_find_segment_in_package(SEGMENT_TYPE_METADATA,
> > +							pkg_hdr);
> > +	if (!metadata_seg_hdr) {
> > +		PMD_DRV_LOG(ERR, "Failed to find metadata segment
> > header");
> > +		return -EINVAL;
> > +	}
> > +	track_id = ((struct i40e_metadata_segment
> > +*)metadata_seg_hdr)->track_id;
> > +
> > +	/* Find profile segment */
> > +	profile_seg_hdr = i40e_find_segment_in_package(SEGMENT_TYPE_I40E,
> > +						       pkg_hdr);
> > +	if (!profile_seg_hdr) {
> > +		PMD_DRV_LOG(ERR, "Failed to find profile segment header");
> > +		return -EINVAL;
> > +	}
> > +
> > +	profile_info_sec = rte_zmalloc("i40e_profile_info",
> > +			       sizeof(struct i40e_profile_section_header) +
> > +			       sizeof(struct i40e_profile_info),
> > +			       0);
> > +	if (!profile_info_sec) {
> > +		PMD_DRV_LOG(ERR, "Failed to allocate memory");
> > +		return -EINVAL;
> > +	}
> > +
> > +	if (op == RTE_PMD_I40E_PKG_OP_WR_ADD) {
> > +		/* Check if the profile exists */
> > +		i40e_generate_profile_info_sec(
> > +		     ((struct i40e_profile_segment *)profile_seg_hdr)->name,
> > +		     &((struct i40e_profile_segment *)profile_seg_hdr)->version,
> > +		     track_id, profile_info_sec, 1);
> > +		is_exist = i40e_check_profile_info(port, profile_info_sec);
> > +		if (is_exist) {
> 
> The i40e_check_profile_info also has a return value like "-1".
> It doesn't mean profile exists, right?

Yes, only "1" means profile exists.

> 
> > +			PMD_DRV_LOG(ERR, "Profile already exists.");
> > +			rte_free(profile_info_sec);
> > +			return 1;
> > +		}
> > +
> > +		/* Write profile to HW */
> > +		status = i40e_write_profile(hw,
> > +				 (struct i40e_profile_segment *)profile_seg_hdr,
> > +				 track_id);
> > +		if (status)
> > +			PMD_DRV_LOG(ERR, "Failed to write profile.");
> > +
> > +		/* Add profile info to info list */
> > +		status = i40e_add_rm_profile_info(hw, profile_info_sec);
> If i40e_write_profile failed, do we still need to add profile info?
No, I missed the condition, thanks for catching it.

> 
>