Function ixgbe_vf_set_multicast

dpdk/drivers/net/ixgbe/ixgbe_pf.c:481–530

}

static int
ixgbe_vf_set_multicast(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
{
	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct ixgbe_vf_info *vfinfo =
		*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
	int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
		IXGBE_VT_MSGINFO_SHIFT;
	uint16_t *hash_list = (uint16_t *)&msgbuf[1];
	uint32_t mta_idx;
	uint32_t mta_shift;
	const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F;
	const uint32_t IXGBE_MTA_BIT_SHIFT = 5;
	const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1;
	uint32_t reg_val;
	int i;
	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));

	/* Disable multicast promiscuous first */
	ixgbe_disable_vf_mc_promisc(dev, vf);

	/* only so many hash values supported */
	nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES);

	/* store the mc entries  */
	vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries;
	for (i = 0; i < nb_entries; i++) {
		vfinfo->vf_mc_hashes[i] = hash_list[i];
	}

	if (nb_entries == 0) {
		vmolr &= ~IXGBE_VMOLR_ROMPE;
		IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
		return 0;
	}

	for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
		mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT)
				& IXGBE_MTA_INDEX_MASK;
		mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK;
		reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx));
		reg_val |= (1 << mta_shift);
		IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val);
	}

	vmolr |= IXGBE_VMOLR_ROMPE;
	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);

	return 0;
}

static int
ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)