diff options
| -rw-r--r-- | sys/dev/e1000/if_em.c | 166 |
1 files changed, 126 insertions, 40 deletions
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c index 6e3a8f73190f..7900e550c55f 100644 --- a/sys/dev/e1000/if_em.c +++ b/sys/dev/e1000/if_em.c @@ -297,6 +297,11 @@ static void em_if_debug(if_ctx_t ctx); static void em_update_stats_counters(struct adapter *); static void em_add_hw_stats(struct adapter *adapter); static int em_if_set_promisc(if_ctx_t ctx, int flags); +static bool em_if_vlan_filter_capable(struct adapter *); +static bool em_if_vlan_filter_used(struct adapter *); +static void em_if_vlan_filter_enable(struct adapter *); +static void em_if_vlan_filter_disable(struct adapter *); +static void em_if_vlan_filter_write(struct adapter *); static void em_setup_vlan_hw_support(struct adapter *); static int em_sysctl_nvm_info(SYSCTL_HANDLER_ARGS); static void em_print_nvm_info(struct adapter *); @@ -906,6 +911,9 @@ em_if_attach_pre(if_ctx_t ctx) scctx->isc_capabilities = scctx->isc_capenable = LEM_CAPS; if (hw->mac.type < e1000_82543) scctx->isc_capenable &= ~(IFCAP_HWCSUM|IFCAP_VLAN_HWCSUM); + /* 82541ER doesn't do HW tagging */ + if (hw->device_id == E1000_DEV_ID_82541ER || hw->device_id == E1000_DEV_ID_82541ER_LOM) + scctx->isc_capenable &= ~IFCAP_VLAN_HWTAGGING; /* INTx only */ scctx->isc_msix_bar = 0; } @@ -1335,23 +1343,8 @@ em_if_init(if_ctx_t ctx) adapter->rx_mbuf_sz = iflib_get_rx_mbuf_sz(ctx); em_initialize_receive_unit(ctx); - /* Use real VLAN Filter support? */ - if (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) { - if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER) - /* Use real VLAN Filter support */ - em_setup_vlan_hw_support(adapter); - else { - u32 ctrl; - ctrl = E1000_READ_REG(&adapter->hw, E1000_CTRL); - ctrl |= E1000_CTRL_VME; - E1000_WRITE_REG(&adapter->hw, E1000_CTRL, ctrl); - } - } else { - u32 ctrl; - ctrl = E1000_READ_REG(&adapter->hw, E1000_CTRL); - ctrl &= ~E1000_CTRL_VME; - E1000_WRITE_REG(&adapter->hw, E1000_CTRL, ctrl); - } + /* Set up VLAN support and filter */ + em_setup_vlan_hw_support(adapter); /* Don't lose promiscuous settings */ em_if_set_promisc(ctx, if_getflags(ifp)); @@ -1670,14 +1663,19 @@ em_if_set_promisc(if_ctx_t ctx, int flags) if (flags & IFF_PROMISC) { reg_rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); + em_if_vlan_filter_disable(adapter); /* Turn this on if you want to see bad packets */ if (em_debug_sbp) reg_rctl |= E1000_RCTL_SBP; E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl); - } else if (flags & IFF_ALLMULTI) { - reg_rctl |= E1000_RCTL_MPE; - reg_rctl &= ~E1000_RCTL_UPE; - E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl); + } else { + if (flags & IFF_ALLMULTI) { + reg_rctl |= E1000_RCTL_MPE; + reg_rctl &= ~E1000_RCTL_UPE; + E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl); + } + if (em_if_vlan_filter_used(adapter)) + em_if_vlan_filter_enable(adapter); } return (0); } @@ -3323,7 +3321,11 @@ em_initialize_receive_unit(if_ctx_t ctx) /* are we on a vlan? */ if (ifp->if_vlantrunk != NULL) psize += VLAN_TAG_SIZE; - E1000_WRITE_REG(hw, E1000_RLPML, psize); + + if (adapter->vf_ifp) + e1000_rlpml_set_vf(hw, pszie); + else + E1000_WRITE_REG(hw, E1000_RLPML, psize); } /* Set maximum packet buffer len */ @@ -3420,6 +3422,7 @@ em_if_vlan_register(if_ctx_t ctx, u16 vtag) bit = vtag & 0x1F; adapter->shadow_vfta[index] |= (1 << bit); ++adapter->num_vlans; + em_if_vlan_filter_write(adapter); } static void @@ -3432,41 +3435,121 @@ em_if_vlan_unregister(if_ctx_t ctx, u16 vtag) bit = vtag & 0x1F; adapter->shadow_vfta[index] &= ~(1 << bit); --adapter->num_vlans; + em_if_vlan_filter_write(adapter); +} + +static bool +em_if_vlan_filter_capable(struct adapter *adapter) +{ + if_softc_ctx_t scctx = adapter->shared; + + if ((scctx->isc_capenable & IFCAP_VLAN_HWFILTER) && + !em_disable_crc_stripping) + return (true); + + return (false); +} + +static bool +em_if_vlan_filter_used(struct adapter *adapter) +{ + if (!em_if_vlan_filter_capable(adapter)) + return (false); + + for (int i = 0; i < EM_VFTA_SIZE; i++) + if (adapter->shadow_vfta[i] != 0) + return (true); + + return (false); +} + +static void +em_if_vlan_filter_enable(struct adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 reg; + + reg = E1000_READ_REG(hw, E1000_RCTL); + reg &= ~E1000_RCTL_CFIEN; + reg |= E1000_RCTL_VFE; + E1000_WRITE_REG(hw, E1000_RCTL, reg); +} + +static void +em_if_vlan_filter_disable(struct adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 reg; + + reg = E1000_READ_REG(hw, E1000_RCTL); + reg &= ~(E1000_RCTL_VFE | E1000_RCTL_CFIEN); + E1000_WRITE_REG(hw, E1000_RCTL, reg); +} + +static void +em_if_vlan_filter_write(struct adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->vf_ifp) + return; + + /* Disable interrupts for lem-class devices during the filter change */ + if (hw->mac.type < em_mac_min) + em_if_intr_disable(adapter->ctx); + + for (int i = 0; i < EM_VFTA_SIZE; i++) + if (adapter->shadow_vfta[i] != 0) { + /* XXXKB: incomplete VF support, we return early above */ + if (adapter->vf_ifp) + e1000_vfta_set_vf(hw, adapter->shadow_vfta[i], TRUE); + else + e1000_write_vfta(hw, i, adapter->shadow_vfta[i]); + } + + /* Re-enable interrupts for lem-class devices */ + if (hw->mac.type < em_mac_min) + em_if_intr_enable(adapter->ctx); } static void em_setup_vlan_hw_support(struct adapter *adapter) { + if_softc_ctx_t scctx = adapter->shared; struct e1000_hw *hw = &adapter->hw; u32 reg; - /* - * We get here thru init_locked, meaning - * a soft reset, this has already cleared - * the VFTA and other state, so if there - * have been no vlan's registered do nothing. + /* XXXKB: Return early if we are a VF until VF decap and filter management + * is ready and tested. */ - if (adapter->num_vlans == 0) + if (adapter->vf_ifp) + return; + + if (scctx->isc_capenable & IFCAP_VLAN_HWTAGGING && + !em_disable_crc_stripping) { + reg = E1000_READ_REG(hw, E1000_CTRL); + reg |= E1000_CTRL_VME; + E1000_WRITE_REG(hw, E1000_CTRL, reg); + } else { + reg = E1000_READ_REG(hw, E1000_CTRL); + reg &= ~E1000_CTRL_VME; + E1000_WRITE_REG(hw, E1000_CTRL, reg); + } + + /* If we aren't doing HW filtering, we're done */ + if (!em_if_vlan_filter_capable(adapter)) { + em_if_vlan_filter_disable(adapter); return; + } /* * A soft reset zero's out the VFTA, so * we need to repopulate it now. */ - for (int i = 0; i < EM_VFTA_SIZE; i++) - if (adapter->shadow_vfta[i] != 0) - E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, - i, adapter->shadow_vfta[i]); - - reg = E1000_READ_REG(hw, E1000_CTRL); - reg |= E1000_CTRL_VME; - E1000_WRITE_REG(hw, E1000_CTRL, reg); + em_if_vlan_filter_write(adapter); /* Enable the Filter Table */ - reg = E1000_READ_REG(hw, E1000_RCTL); - reg &= ~E1000_RCTL_CFIEN; - reg |= E1000_RCTL_VFE; - E1000_WRITE_REG(hw, E1000_RCTL, reg); + em_if_vlan_filter_enable(adapter); } static void @@ -3481,6 +3564,7 @@ em_if_intr_enable(if_ctx_t ctx) ims_mask |= adapter->ims; } E1000_WRITE_REG(hw, E1000_IMS, ims_mask); + E1000_WRITE_FLUSH(hw); } static void @@ -3492,6 +3576,7 @@ em_if_intr_disable(if_ctx_t ctx) if (adapter->intr_type == IFLIB_INTR_MSIX) E1000_WRITE_REG(hw, EM_EIAC, 0); E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff); + E1000_WRITE_FLUSH(hw); } static void @@ -4101,6 +4186,7 @@ em_if_needs_restart(if_ctx_t ctx __unused, enum iflib_restart_event event) { switch (event) { case IFLIB_RESTART_VLAN_CONFIG: + return (false); default: return (true); } |