diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbevf/vf.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/vf.c | 224 |
1 files changed, 217 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c index 4d613a4f2a7f..e670d3b19c3c 100644 --- a/drivers/net/ethernet/intel/ixgbevf/vf.c +++ b/drivers/net/ethernet/intel/ixgbevf/vf.c @@ -27,6 +27,12 @@ #include "vf.h" #include "ixgbevf.h" +/* On Hyper-V, to reset, we need to read from this offset + * from the PCI config space. This is the mechanism used on + * Hyper-V to support PF/VF communication. + */ +#define IXGBE_HV_RESET_OFFSET 0x201 + /** * ixgbevf_start_hw_vf - Prepare hardware for Tx/Rx * @hw: pointer to hardware structure @@ -126,6 +132,27 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw) } /** + * Hyper-V variant; the VF/PF communication is through the PCI + * config space. + */ +static s32 ixgbevf_hv_reset_hw_vf(struct ixgbe_hw *hw) +{ +#if IS_ENABLED(CONFIG_PCI_MMCONFIG) + struct ixgbevf_adapter *adapter = hw->back; + int i; + + for (i = 0; i < 6; i++) + pci_read_config_byte(adapter->pdev, + (i + IXGBE_HV_RESET_OFFSET), + &hw->mac.perm_addr[i]); + return 0; +#else + pr_err("PCI_MMCONFIG needs to be enabled for Hyper-V\n"); + return -EOPNOTSUPP; +#endif +} + +/** * ixgbevf_stop_hw_vf - Generic stop Tx/Rx units * @hw: pointer to hardware structure * @@ -258,6 +285,11 @@ static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr) return ret_val; } +static s32 ixgbevf_hv_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr) +{ + return -EOPNOTSUPP; +} + /** * ixgbevf_get_reta_locked - get the RSS redirection table (RETA) contents. * @adapter: pointer to the port handle @@ -416,6 +448,26 @@ static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, return ret_val; } +/** + * ixgbevf_hv_set_rar_vf - set device MAC address Hyper-V variant + * @hw: pointer to hardware structure + * @index: Receive address register to write + * @addr: Address to put into receive address register + * @vmdq: Unused in this implementation + * + * We don't really allow setting the device MAC address. However, + * if the address being set is the permanent MAC address we will + * permit that. + **/ +static s32 ixgbevf_hv_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, + u32 vmdq) +{ + if (ether_addr_equal(addr, hw->mac.perm_addr)) + return 0; + + return -EOPNOTSUPP; +} + static void ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw, u32 *msg, u16 size) { @@ -473,15 +525,22 @@ static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw, } /** + * Hyper-V variant - just a stub. + */ +static s32 ixgbevf_hv_update_mc_addr_list_vf(struct ixgbe_hw *hw, + struct net_device *netdev) +{ + return -EOPNOTSUPP; +} + +/** * ixgbevf_update_xcast_mode - Update Multicast mode * @hw: pointer to the HW structure - * @netdev: pointer to net device structure * @xcast_mode: new multicast mode * * Updates the Multicast Mode of VF. **/ -static s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, - struct net_device *netdev, int xcast_mode) +static s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode) { struct ixgbe_mbx_info *mbx = &hw->mbx; u32 msgbuf[2]; @@ -513,6 +572,14 @@ static s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, } /** + * Hyper-V variant - just a stub. + */ +static s32 ixgbevf_hv_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode) +{ + return -EOPNOTSUPP; +} + +/** * ixgbevf_set_vfta_vf - Set/Unset VLAN filter table address * @hw: pointer to the HW structure * @vlan: 12 bit VLAN ID @@ -551,6 +618,15 @@ mbx_err: } /** + * Hyper-V variant - just a stub. + */ +static s32 ixgbevf_hv_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on) +{ + return -EOPNOTSUPP; +} + +/** * ixgbevf_setup_mac_link_vf - Setup MAC link settings * @hw: pointer to hardware structure * @speed: Unused in this implementation @@ -656,11 +732,72 @@ out: } /** - * ixgbevf_rlpml_set_vf - Set the maximum receive packet length + * Hyper-V variant; there is no mailbox communication. + */ +static s32 ixgbevf_hv_check_mac_link_vf(struct ixgbe_hw *hw, + ixgbe_link_speed *speed, + bool *link_up, + bool autoneg_wait_to_complete) +{ + struct ixgbe_mbx_info *mbx = &hw->mbx; + struct ixgbe_mac_info *mac = &hw->mac; + u32 links_reg; + + /* If we were hit with a reset drop the link */ + if (!mbx->ops.check_for_rst(hw) || !mbx->timeout) + mac->get_link_status = true; + + if (!mac->get_link_status) + goto out; + + /* if link status is down no point in checking to see if pf is up */ + links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS); + if (!(links_reg & IXGBE_LINKS_UP)) + goto out; + + /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs + * before the link status is correct + */ + if (mac->type == ixgbe_mac_82599_vf) { + int i; + + for (i = 0; i < 5; i++) { + udelay(100); + links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS); + + if (!(links_reg & IXGBE_LINKS_UP)) + goto out; + } + } + + switch (links_reg & IXGBE_LINKS_SPEED_82599) { + case IXGBE_LINKS_SPEED_10G_82599: + *speed = IXGBE_LINK_SPEED_10GB_FULL; + break; + case IXGBE_LINKS_SPEED_1G_82599: + *speed = IXGBE_LINK_SPEED_1GB_FULL; + break; + case IXGBE_LINKS_SPEED_100_82599: + *speed = IXGBE_LINK_SPEED_100_FULL; + break; + } + + /* if we passed all the tests above then the link is up and we no + * longer need to check for link + */ + mac->get_link_status = false; + +out: + *link_up = !mac->get_link_status; + return 0; +} + +/** + * ixgbevf_set_rlpml_vf - Set the maximum receive packet length * @hw: pointer to the HW structure * @max_size: value to assign to max frame size **/ -void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size) +static void ixgbevf_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size) { u32 msgbuf[2]; @@ -670,11 +807,30 @@ void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size) } /** - * ixgbevf_negotiate_api_version - Negotiate supported API version + * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length + * @hw: pointer to the HW structure + * @max_size: value to assign to max frame size + * Hyper-V variant. + **/ +static void ixgbevf_hv_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size) +{ + u32 reg; + + /* If we are on Hyper-V, we implement this functionality + * differently. + */ + reg = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(0)); + /* CRC == 4 */ + reg |= ((max_size + 4) | IXGBE_RXDCTL_RLPML_EN); + IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(0), reg); +} + +/** + * ixgbevf_negotiate_api_version_vf - Negotiate supported API version * @hw: pointer to the HW structure * @api: integer containing requested API version **/ -int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api) +static int ixgbevf_negotiate_api_version_vf(struct ixgbe_hw *hw, int api) { int err; u32 msg[3]; @@ -703,6 +859,21 @@ int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api) return err; } +/** + * ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version + * @hw: pointer to the HW structure + * @api: integer containing requested API version + * Hyper-V version - only ixgbe_mbox_api_10 supported. + **/ +static int ixgbevf_hv_negotiate_api_version_vf(struct ixgbe_hw *hw, int api) +{ + /* Hyper-V only supports api version ixgbe_mbox_api_10 */ + if (api != ixgbe_mbox_api_10) + return IXGBE_ERR_INVALID_ARGUMENT; + + return 0; +} + int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs, unsigned int *default_tc) { @@ -769,11 +940,30 @@ static const struct ixgbe_mac_operations ixgbevf_mac_ops = { .stop_adapter = ixgbevf_stop_hw_vf, .setup_link = ixgbevf_setup_mac_link_vf, .check_link = ixgbevf_check_mac_link_vf, + .negotiate_api_version = ixgbevf_negotiate_api_version_vf, .set_rar = ixgbevf_set_rar_vf, .update_mc_addr_list = ixgbevf_update_mc_addr_list_vf, .update_xcast_mode = ixgbevf_update_xcast_mode, .set_uc_addr = ixgbevf_set_uc_addr_vf, .set_vfta = ixgbevf_set_vfta_vf, + .set_rlpml = ixgbevf_set_rlpml_vf, +}; + +static const struct ixgbe_mac_operations ixgbevf_hv_mac_ops = { + .init_hw = ixgbevf_init_hw_vf, + .reset_hw = ixgbevf_hv_reset_hw_vf, + .start_hw = ixgbevf_start_hw_vf, + .get_mac_addr = ixgbevf_get_mac_addr_vf, + .stop_adapter = ixgbevf_stop_hw_vf, + .setup_link = ixgbevf_setup_mac_link_vf, + .check_link = ixgbevf_hv_check_mac_link_vf, + .negotiate_api_version = ixgbevf_hv_negotiate_api_version_vf, + .set_rar = ixgbevf_hv_set_rar_vf, + .update_mc_addr_list = ixgbevf_hv_update_mc_addr_list_vf, + .update_xcast_mode = ixgbevf_hv_update_xcast_mode, + .set_uc_addr = ixgbevf_hv_set_uc_addr_vf, + .set_vfta = ixgbevf_hv_set_vfta_vf, + .set_rlpml = ixgbevf_hv_set_rlpml_vf, }; const struct ixgbevf_info ixgbevf_82599_vf_info = { @@ -781,17 +971,37 @@ const struct ixgbevf_info ixgbevf_82599_vf_info = { .mac_ops = &ixgbevf_mac_ops, }; +const struct ixgbevf_info ixgbevf_82599_vf_hv_info = { + .mac = ixgbe_mac_82599_vf, + .mac_ops = &ixgbevf_hv_mac_ops, +}; + const struct ixgbevf_info ixgbevf_X540_vf_info = { .mac = ixgbe_mac_X540_vf, .mac_ops = &ixgbevf_mac_ops, }; +const struct ixgbevf_info ixgbevf_X540_vf_hv_info = { + .mac = ixgbe_mac_X540_vf, + .mac_ops = &ixgbevf_hv_mac_ops, +}; + const struct ixgbevf_info ixgbevf_X550_vf_info = { .mac = ixgbe_mac_X550_vf, .mac_ops = &ixgbevf_mac_ops, }; +const struct ixgbevf_info ixgbevf_X550_vf_hv_info = { + .mac = ixgbe_mac_X550_vf, + .mac_ops = &ixgbevf_hv_mac_ops, +}; + const struct ixgbevf_info ixgbevf_X550EM_x_vf_info = { .mac = ixgbe_mac_X550EM_x_vf, .mac_ops = &ixgbevf_mac_ops, }; + +const struct ixgbevf_info ixgbevf_X550EM_x_vf_hv_info = { + .mac = ixgbe_mac_X550EM_x_vf, + .mac_ops = &ixgbevf_hv_mac_ops, +}; |