freebsd-dev/sys/dev/ixl/if_iavf.c
Eric Joyner cf1509179c em/ix/ixv/ixl/iavf: Implement ifdi_needs_restart iflib method
Pursuant to r360398, implement driver-specific versions of the
ifdi_needs_restart iflib device method.

Some (if not most?) Intel network cards don't need reinitializing when a
VLAN is added or removed from the device hardware, so these implement
ifdi_needs_restart in a way that tell iflib not to bring the interface
up or down when a VLAN is added or removed, regardless of whether the
VLAN_HWFILTER interface capability flag is set or not.

This could potentially solve several PRs relating to link flaps that
occur when VLANs are added/removed to devices.

Signed-off-by: Eric Joyner <erj@freebsd.org>

PR:		240818, 241785
Reviewed by:	gallatin@, olivier@
MFC after:	3 days
MFC with:	r360398
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D24659
2020-05-11 17:42:04 +00:00

2455 lines
63 KiB
C

/******************************************************************************
Copyright (c) 2013-2018, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
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notice, this list of conditions and the following disclaimer in the
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contributors may be used to endorse or promote products derived from
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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******************************************************************************/
/*$FreeBSD$*/
#include "iavf.h"
/*********************************************************************
* Driver version
*********************************************************************/
#define IAVF_DRIVER_VERSION_MAJOR 2
#define IAVF_DRIVER_VERSION_MINOR 0
#define IAVF_DRIVER_VERSION_BUILD 0
#define IAVF_DRIVER_VERSION_STRING \
__XSTRING(IAVF_DRIVER_VERSION_MAJOR) "." \
__XSTRING(IAVF_DRIVER_VERSION_MINOR) "." \
__XSTRING(IAVF_DRIVER_VERSION_BUILD) "-k"
/*********************************************************************
* PCI Device ID Table
*
* Used by probe to select devices to load on
*
* ( Vendor ID, Device ID, Branding String )
*********************************************************************/
static pci_vendor_info_t iavf_vendor_info_array[] =
{
PVID(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_VF, "Intel(R) Ethernet Virtual Function 700 Series"),
PVID(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_X722_VF, "Intel(R) Ethernet Virtual Function 700 Series (X722)"),
PVID(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_ADAPTIVE_VF, "Intel(R) Ethernet Adaptive Virtual Function"),
/* required last entry */
PVID_END
};
/*********************************************************************
* Function prototypes
*********************************************************************/
static void *iavf_register(device_t dev);
static int iavf_if_attach_pre(if_ctx_t ctx);
static int iavf_if_attach_post(if_ctx_t ctx);
static int iavf_if_detach(if_ctx_t ctx);
static int iavf_if_shutdown(if_ctx_t ctx);
static int iavf_if_suspend(if_ctx_t ctx);
static int iavf_if_resume(if_ctx_t ctx);
static int iavf_if_msix_intr_assign(if_ctx_t ctx, int msix);
static void iavf_if_enable_intr(if_ctx_t ctx);
static void iavf_if_disable_intr(if_ctx_t ctx);
static int iavf_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid);
static int iavf_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid);
static int iavf_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets);
static int iavf_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets);
static void iavf_if_queues_free(if_ctx_t ctx);
static void iavf_if_update_admin_status(if_ctx_t ctx);
static void iavf_if_multi_set(if_ctx_t ctx);
static int iavf_if_mtu_set(if_ctx_t ctx, uint32_t mtu);
static void iavf_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr);
static int iavf_if_media_change(if_ctx_t ctx);
static int iavf_if_promisc_set(if_ctx_t ctx, int flags);
static void iavf_if_timer(if_ctx_t ctx, uint16_t qid);
static void iavf_if_vlan_register(if_ctx_t ctx, u16 vtag);
static void iavf_if_vlan_unregister(if_ctx_t ctx, u16 vtag);
static uint64_t iavf_if_get_counter(if_ctx_t ctx, ift_counter cnt);
static void iavf_if_stop(if_ctx_t ctx);
static bool iavf_if_needs_restart(if_ctx_t ctx, enum iflib_restart_event event);
static int iavf_allocate_pci_resources(struct iavf_sc *);
static int iavf_reset_complete(struct i40e_hw *);
static int iavf_setup_vc(struct iavf_sc *);
static int iavf_reset(struct iavf_sc *);
static int iavf_vf_config(struct iavf_sc *);
static void iavf_init_filters(struct iavf_sc *);
static void iavf_free_pci_resources(struct iavf_sc *);
static void iavf_free_filters(struct iavf_sc *);
static void iavf_setup_interface(device_t, struct iavf_sc *);
static void iavf_add_device_sysctls(struct iavf_sc *);
static void iavf_enable_adminq_irq(struct i40e_hw *);
static void iavf_disable_adminq_irq(struct i40e_hw *);
static void iavf_enable_queue_irq(struct i40e_hw *, int);
static void iavf_disable_queue_irq(struct i40e_hw *, int);
static void iavf_config_rss(struct iavf_sc *);
static void iavf_stop(struct iavf_sc *);
static int iavf_add_mac_filter(struct iavf_sc *, u8 *, u16);
static int iavf_del_mac_filter(struct iavf_sc *sc, u8 *macaddr);
static int iavf_msix_que(void *);
static int iavf_msix_adminq(void *);
//static void iavf_del_multi(struct iavf_sc *sc);
static void iavf_init_multi(struct iavf_sc *sc);
static void iavf_configure_itr(struct iavf_sc *sc);
static int iavf_sysctl_rx_itr(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_tx_itr(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_current_speed(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_sw_filter_list(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_queue_interrupt_table(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_vf_reset(SYSCTL_HANDLER_ARGS);
static int iavf_sysctl_vflr_reset(SYSCTL_HANDLER_ARGS);
static void iavf_save_tunables(struct iavf_sc *);
static enum i40e_status_code
iavf_process_adminq(struct iavf_sc *, u16 *);
static int iavf_send_vc_msg(struct iavf_sc *sc, u32 op);
static int iavf_send_vc_msg_sleep(struct iavf_sc *sc, u32 op);
/*********************************************************************
* FreeBSD Device Interface Entry Points
*********************************************************************/
static device_method_t iavf_methods[] = {
/* Device interface */
DEVMETHOD(device_register, iavf_register),
DEVMETHOD(device_probe, iflib_device_probe),
DEVMETHOD(device_attach, iflib_device_attach),
DEVMETHOD(device_detach, iflib_device_detach),
DEVMETHOD(device_shutdown, iflib_device_shutdown),
DEVMETHOD_END
};
static driver_t iavf_driver = {
"iavf", iavf_methods, sizeof(struct iavf_sc),
};
devclass_t iavf_devclass;
DRIVER_MODULE(iavf, pci, iavf_driver, iavf_devclass, 0, 0);
MODULE_PNP_INFO("U32:vendor;U32:device;U32:subvendor;U32:subdevice;U32:revision",
pci, iavf, iavf_vendor_info_array,
nitems(iavf_vendor_info_array) - 1);
MODULE_VERSION(iavf, 1);
MODULE_DEPEND(iavf, pci, 1, 1, 1);
MODULE_DEPEND(iavf, ether, 1, 1, 1);
MODULE_DEPEND(iavf, iflib, 1, 1, 1);
MALLOC_DEFINE(M_IAVF, "iavf", "iavf driver allocations");
static device_method_t iavf_if_methods[] = {
DEVMETHOD(ifdi_attach_pre, iavf_if_attach_pre),
DEVMETHOD(ifdi_attach_post, iavf_if_attach_post),
DEVMETHOD(ifdi_detach, iavf_if_detach),
DEVMETHOD(ifdi_shutdown, iavf_if_shutdown),
DEVMETHOD(ifdi_suspend, iavf_if_suspend),
DEVMETHOD(ifdi_resume, iavf_if_resume),
DEVMETHOD(ifdi_init, iavf_if_init),
DEVMETHOD(ifdi_stop, iavf_if_stop),
DEVMETHOD(ifdi_msix_intr_assign, iavf_if_msix_intr_assign),
DEVMETHOD(ifdi_intr_enable, iavf_if_enable_intr),
DEVMETHOD(ifdi_intr_disable, iavf_if_disable_intr),
DEVMETHOD(ifdi_rx_queue_intr_enable, iavf_if_rx_queue_intr_enable),
DEVMETHOD(ifdi_tx_queue_intr_enable, iavf_if_tx_queue_intr_enable),
DEVMETHOD(ifdi_tx_queues_alloc, iavf_if_tx_queues_alloc),
DEVMETHOD(ifdi_rx_queues_alloc, iavf_if_rx_queues_alloc),
DEVMETHOD(ifdi_queues_free, iavf_if_queues_free),
DEVMETHOD(ifdi_update_admin_status, iavf_if_update_admin_status),
DEVMETHOD(ifdi_multi_set, iavf_if_multi_set),
DEVMETHOD(ifdi_mtu_set, iavf_if_mtu_set),
DEVMETHOD(ifdi_media_status, iavf_if_media_status),
DEVMETHOD(ifdi_media_change, iavf_if_media_change),
DEVMETHOD(ifdi_promisc_set, iavf_if_promisc_set),
DEVMETHOD(ifdi_timer, iavf_if_timer),
DEVMETHOD(ifdi_vlan_register, iavf_if_vlan_register),
DEVMETHOD(ifdi_vlan_unregister, iavf_if_vlan_unregister),
DEVMETHOD(ifdi_get_counter, iavf_if_get_counter),
DEVMETHOD(ifdi_needs_restart, iavf_if_needs_restart),
DEVMETHOD_END
};
static driver_t iavf_if_driver = {
"iavf_if", iavf_if_methods, sizeof(struct iavf_sc)
};
/*
** TUNEABLE PARAMETERS:
*/
static SYSCTL_NODE(_hw, OID_AUTO, iavf, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"iavf driver parameters");
/*
* Different method for processing TX descriptor
* completion.
*/
static int iavf_enable_head_writeback = 0;
TUNABLE_INT("hw.iavf.enable_head_writeback",
&iavf_enable_head_writeback);
SYSCTL_INT(_hw_iavf, OID_AUTO, enable_head_writeback, CTLFLAG_RDTUN,
&iavf_enable_head_writeback, 0,
"For detecting last completed TX descriptor by hardware, use value written by HW instead of checking descriptors");
static int iavf_core_debug_mask = 0;
TUNABLE_INT("hw.iavf.core_debug_mask",
&iavf_core_debug_mask);
SYSCTL_INT(_hw_iavf, OID_AUTO, core_debug_mask, CTLFLAG_RDTUN,
&iavf_core_debug_mask, 0,
"Display debug statements that are printed in non-shared code");
static int iavf_shared_debug_mask = 0;
TUNABLE_INT("hw.iavf.shared_debug_mask",
&iavf_shared_debug_mask);
SYSCTL_INT(_hw_iavf, OID_AUTO, shared_debug_mask, CTLFLAG_RDTUN,
&iavf_shared_debug_mask, 0,
"Display debug statements that are printed in shared code");
int iavf_rx_itr = IXL_ITR_8K;
TUNABLE_INT("hw.iavf.rx_itr", &iavf_rx_itr);
SYSCTL_INT(_hw_iavf, OID_AUTO, rx_itr, CTLFLAG_RDTUN,
&iavf_rx_itr, 0, "RX Interrupt Rate");
int iavf_tx_itr = IXL_ITR_4K;
TUNABLE_INT("hw.iavf.tx_itr", &iavf_tx_itr);
SYSCTL_INT(_hw_iavf, OID_AUTO, tx_itr, CTLFLAG_RDTUN,
&iavf_tx_itr, 0, "TX Interrupt Rate");
extern struct if_txrx ixl_txrx_hwb;
extern struct if_txrx ixl_txrx_dwb;
static struct if_shared_ctx iavf_sctx_init = {
.isc_magic = IFLIB_MAGIC,
.isc_q_align = PAGE_SIZE,/* max(DBA_ALIGN, PAGE_SIZE) */
.isc_tx_maxsize = IXL_TSO_SIZE + sizeof(struct ether_vlan_header),
.isc_tx_maxsegsize = IXL_MAX_DMA_SEG_SIZE,
.isc_tso_maxsize = IXL_TSO_SIZE + sizeof(struct ether_vlan_header),
.isc_tso_maxsegsize = IXL_MAX_DMA_SEG_SIZE,
.isc_rx_maxsize = 16384,
.isc_rx_nsegments = IXL_MAX_RX_SEGS,
.isc_rx_maxsegsize = IXL_MAX_DMA_SEG_SIZE,
.isc_nfl = 1,
.isc_ntxqs = 1,
.isc_nrxqs = 1,
.isc_admin_intrcnt = 1,
.isc_vendor_info = iavf_vendor_info_array,
.isc_driver_version = IAVF_DRIVER_VERSION_STRING,
.isc_driver = &iavf_if_driver,
.isc_flags = IFLIB_NEED_SCRATCH | IFLIB_NEED_ZERO_CSUM | IFLIB_TSO_INIT_IP | IFLIB_IS_VF,
.isc_nrxd_min = {IXL_MIN_RING},
.isc_ntxd_min = {IXL_MIN_RING},
.isc_nrxd_max = {IXL_MAX_RING},
.isc_ntxd_max = {IXL_MAX_RING},
.isc_nrxd_default = {IXL_DEFAULT_RING},
.isc_ntxd_default = {IXL_DEFAULT_RING},
};
if_shared_ctx_t iavf_sctx = &iavf_sctx_init;
/*** Functions ***/
static void *
iavf_register(device_t dev)
{
return (iavf_sctx);
}
static int
iavf_allocate_pci_resources(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
device_t dev = iflib_get_dev(sc->vsi.ctx);
int rid;
/* Map BAR0 */
rid = PCIR_BAR(0);
sc->pci_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE);
if (!(sc->pci_mem)) {
device_printf(dev, "Unable to allocate bus resource: PCI memory\n");
return (ENXIO);
}
/* Save off the PCI information */
hw->vendor_id = pci_get_vendor(dev);
hw->device_id = pci_get_device(dev);
hw->revision_id = pci_read_config(dev, PCIR_REVID, 1);
hw->subsystem_vendor_id =
pci_read_config(dev, PCIR_SUBVEND_0, 2);
hw->subsystem_device_id =
pci_read_config(dev, PCIR_SUBDEV_0, 2);
hw->bus.device = pci_get_slot(dev);
hw->bus.func = pci_get_function(dev);
/* Save off register access information */
sc->osdep.mem_bus_space_tag =
rman_get_bustag(sc->pci_mem);
sc->osdep.mem_bus_space_handle =
rman_get_bushandle(sc->pci_mem);
sc->osdep.mem_bus_space_size = rman_get_size(sc->pci_mem);
sc->osdep.flush_reg = I40E_VFGEN_RSTAT;
sc->osdep.dev = dev;
sc->hw.hw_addr = (u8 *) &sc->osdep.mem_bus_space_handle;
sc->hw.back = &sc->osdep;
return (0);
}
static int
iavf_if_attach_pre(if_ctx_t ctx)
{
device_t dev;
struct iavf_sc *sc;
struct i40e_hw *hw;
struct ixl_vsi *vsi;
if_softc_ctx_t scctx;
int error = 0;
dev = iflib_get_dev(ctx);
sc = iflib_get_softc(ctx);
vsi = &sc->vsi;
vsi->back = sc;
sc->dev = dev;
hw = &sc->hw;
vsi->dev = dev;
vsi->hw = &sc->hw;
vsi->num_vlans = 0;
vsi->ctx = ctx;
vsi->media = iflib_get_media(ctx);
vsi->shared = scctx = iflib_get_softc_ctx(ctx);
iavf_save_tunables(sc);
/* Do PCI setup - map BAR0, etc */
if (iavf_allocate_pci_resources(sc)) {
device_printf(dev, "%s: Allocation of PCI resources failed\n",
__func__);
error = ENXIO;
goto err_early;
}
iavf_dbg_init(sc, "Allocated PCI resources and MSI-X vectors\n");
/*
* XXX: This is called by init_shared_code in the PF driver,
* but the rest of that function does not support VFs.
*/
error = i40e_set_mac_type(hw);
if (error) {
device_printf(dev, "%s: set_mac_type failed: %d\n",
__func__, error);
goto err_pci_res;
}
error = iavf_reset_complete(hw);
if (error) {
device_printf(dev, "%s: Device is still being reset\n",
__func__);
goto err_pci_res;
}
iavf_dbg_init(sc, "VF Device is ready for configuration\n");
/* Sets up Admin Queue */
error = iavf_setup_vc(sc);
if (error) {
device_printf(dev, "%s: Error setting up PF comms, %d\n",
__func__, error);
goto err_pci_res;
}
iavf_dbg_init(sc, "PF API version verified\n");
/* Need API version before sending reset message */
error = iavf_reset(sc);
if (error) {
device_printf(dev, "VF reset failed; reload the driver\n");
goto err_aq;
}
iavf_dbg_init(sc, "VF reset complete\n");
/* Ask for VF config from PF */
error = iavf_vf_config(sc);
if (error) {
device_printf(dev, "Error getting configuration from PF: %d\n",
error);
goto err_aq;
}
device_printf(dev,
"VSIs %d, QPs %d, MSI-X %d, RSS sizes: key %d lut %d\n",
sc->vf_res->num_vsis,
sc->vf_res->num_queue_pairs,
sc->vf_res->max_vectors,
sc->vf_res->rss_key_size,
sc->vf_res->rss_lut_size);
iavf_dbg_info(sc, "Capabilities=%b\n",
sc->vf_res->vf_cap_flags, IAVF_PRINTF_VF_OFFLOAD_FLAGS);
/* got VF config message back from PF, now we can parse it */
for (int i = 0; i < sc->vf_res->num_vsis; i++) {
/* XXX: We only use the first VSI we find */
if (sc->vf_res->vsi_res[i].vsi_type == I40E_VSI_SRIOV)
sc->vsi_res = &sc->vf_res->vsi_res[i];
}
if (!sc->vsi_res) {
device_printf(dev, "%s: no LAN VSI found\n", __func__);
error = EIO;
goto err_res_buf;
}
vsi->id = sc->vsi_res->vsi_id;
iavf_dbg_init(sc, "Resource Acquisition complete\n");
/* If no mac address was assigned just make a random one */
if (!iavf_check_ether_addr(hw->mac.addr)) {
u8 addr[ETHER_ADDR_LEN];
arc4rand(&addr, sizeof(addr), 0);
addr[0] &= 0xFE;
addr[0] |= 0x02;
bcopy(addr, hw->mac.addr, sizeof(addr));
}
bcopy(hw->mac.addr, hw->mac.perm_addr, ETHER_ADDR_LEN);
iflib_set_mac(ctx, hw->mac.addr);
/* Allocate filter lists */
iavf_init_filters(sc);
/* Fill out more iflib parameters */
scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max =
sc->vsi_res->num_queue_pairs;
if (vsi->enable_head_writeback) {
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0]
* sizeof(struct i40e_tx_desc) + sizeof(u32), DBA_ALIGN);
scctx->isc_txrx = &ixl_txrx_hwb;
} else {
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0]
* sizeof(struct i40e_tx_desc), DBA_ALIGN);
scctx->isc_txrx = &ixl_txrx_dwb;
}
scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0]
* sizeof(union i40e_32byte_rx_desc), DBA_ALIGN);
scctx->isc_msix_bar = PCIR_BAR(IXL_MSIX_BAR);
scctx->isc_tx_nsegments = IXL_MAX_TX_SEGS;
scctx->isc_tx_tso_segments_max = IXL_MAX_TSO_SEGS;
scctx->isc_tx_tso_size_max = IXL_TSO_SIZE;
scctx->isc_tx_tso_segsize_max = IXL_MAX_DMA_SEG_SIZE;
scctx->isc_rss_table_size = IXL_RSS_VSI_LUT_SIZE;
scctx->isc_tx_csum_flags = CSUM_OFFLOAD;
scctx->isc_capabilities = scctx->isc_capenable = IXL_CAPS;
return (0);
err_res_buf:
free(sc->vf_res, M_IAVF);
err_aq:
i40e_shutdown_adminq(hw);
err_pci_res:
iavf_free_pci_resources(sc);
err_early:
return (error);
}
static int
iavf_if_attach_post(if_ctx_t ctx)
{
device_t dev;
struct iavf_sc *sc;
struct i40e_hw *hw;
struct ixl_vsi *vsi;
int error = 0;
INIT_DBG_DEV(dev, "begin");
dev = iflib_get_dev(ctx);
sc = iflib_get_softc(ctx);
vsi = &sc->vsi;
vsi->ifp = iflib_get_ifp(ctx);
hw = &sc->hw;
/* Save off determined number of queues for interface */
vsi->num_rx_queues = vsi->shared->isc_nrxqsets;
vsi->num_tx_queues = vsi->shared->isc_ntxqsets;
/* Setup the stack interface */
iavf_setup_interface(dev, sc);
INIT_DBG_DEV(dev, "Interface setup complete");
/* Initialize statistics & add sysctls */
bzero(&sc->vsi.eth_stats, sizeof(struct i40e_eth_stats));
iavf_add_device_sysctls(sc);
sc->init_state = IAVF_INIT_READY;
atomic_store_rel_32(&sc->queues_enabled, 0);
/* We want AQ enabled early for init */
iavf_enable_adminq_irq(hw);
INIT_DBG_DEV(dev, "end");
return (error);
}
/**
* XXX: iflib always ignores the return value of detach()
* -> This means that this isn't allowed to fail
*/
static int
iavf_if_detach(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct i40e_hw *hw = &sc->hw;
device_t dev = sc->dev;
enum i40e_status_code status;
INIT_DBG_DEV(dev, "begin");
/* Remove all the media and link information */
ifmedia_removeall(vsi->media);
iavf_disable_adminq_irq(hw);
status = i40e_shutdown_adminq(&sc->hw);
if (status != I40E_SUCCESS) {
device_printf(dev,
"i40e_shutdown_adminq() failed with status %s\n",
i40e_stat_str(hw, status));
}
free(sc->vf_res, M_IAVF);
iavf_free_pci_resources(sc);
iavf_free_filters(sc);
INIT_DBG_DEV(dev, "end");
return (0);
}
static int
iavf_if_shutdown(if_ctx_t ctx)
{
return (0);
}
static int
iavf_if_suspend(if_ctx_t ctx)
{
return (0);
}
static int
iavf_if_resume(if_ctx_t ctx)
{
return (0);
}
static int
iavf_send_vc_msg_sleep(struct iavf_sc *sc, u32 op)
{
int error = 0;
if_ctx_t ctx = sc->vsi.ctx;
error = ixl_vc_send_cmd(sc, op);
if (error != 0) {
iavf_dbg_vc(sc, "Error sending %b: %d\n", op, IAVF_FLAGS, error);
return (error);
}
/* Don't wait for a response if the device is being detached. */
if (!iflib_in_detach(ctx)) {
iavf_dbg_vc(sc, "Sleeping for op %b\n", op, IAVF_FLAGS);
error = sx_sleep(ixl_vc_get_op_chan(sc, op),
iflib_ctx_lock_get(ctx), PRI_MAX, "iavf_vc", IAVF_AQ_TIMEOUT);
if (error == EWOULDBLOCK)
device_printf(sc->dev, "%b timed out\n", op, IAVF_FLAGS);
}
return (error);
}
static int
iavf_send_vc_msg(struct iavf_sc *sc, u32 op)
{
int error = 0;
error = ixl_vc_send_cmd(sc, op);
if (error != 0)
iavf_dbg_vc(sc, "Error sending %b: %d\n", op, IAVF_FLAGS, error);
return (error);
}
static void
iavf_init_queues(struct ixl_vsi *vsi)
{
struct ixl_tx_queue *tx_que = vsi->tx_queues;
struct ixl_rx_queue *rx_que = vsi->rx_queues;
struct rx_ring *rxr;
for (int i = 0; i < vsi->num_tx_queues; i++, tx_que++)
ixl_init_tx_ring(vsi, tx_que);
for (int i = 0; i < vsi->num_rx_queues; i++, rx_que++) {
rxr = &rx_que->rxr;
rxr->mbuf_sz = iflib_get_rx_mbuf_sz(vsi->ctx);
wr32(vsi->hw, rxr->tail, 0);
}
}
void
iavf_if_init(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct i40e_hw *hw = &sc->hw;
struct ifnet *ifp = iflib_get_ifp(ctx);
u8 tmpaddr[ETHER_ADDR_LEN];
int error = 0;
INIT_DBG_IF(ifp, "begin");
MPASS(sx_xlocked(iflib_ctx_lock_get(ctx)));
error = iavf_reset_complete(hw);
if (error) {
device_printf(sc->dev, "%s: VF reset failed\n",
__func__);
}
if (!i40e_check_asq_alive(hw)) {
iavf_dbg_info(sc, "ASQ is not alive, re-initializing AQ\n");
pci_enable_busmaster(sc->dev);
i40e_shutdown_adminq(hw);
i40e_init_adminq(hw);
}
/* Make sure queues are disabled */
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_DISABLE_QUEUES);
bcopy(IF_LLADDR(ifp), tmpaddr, ETHER_ADDR_LEN);
if (!cmp_etheraddr(hw->mac.addr, tmpaddr) &&
(i40e_validate_mac_addr(tmpaddr) == I40E_SUCCESS)) {
error = iavf_del_mac_filter(sc, hw->mac.addr);
if (error == 0)
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_DEL_MAC_FILTER);
bcopy(tmpaddr, hw->mac.addr, ETH_ALEN);
}
error = iavf_add_mac_filter(sc, hw->mac.addr, 0);
if (!error || error == EEXIST)
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_ADD_MAC_FILTER);
iflib_set_mac(ctx, hw->mac.addr);
/* Prepare the queues for operation */
iavf_init_queues(vsi);
/* Set initial ITR values */
iavf_configure_itr(sc);
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_CONFIGURE_QUEUES);
/* Set up RSS */
iavf_config_rss(sc);
/* Map vectors */
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_MAP_VECTORS);
/* Init SW TX ring indices */
if (vsi->enable_head_writeback)
ixl_init_tx_cidx(vsi);
else
ixl_init_tx_rsqs(vsi);
/* Configure promiscuous mode */
iavf_if_promisc_set(ctx, if_getflags(ifp));
/* Enable queues */
iavf_send_vc_msg_sleep(sc, IAVF_FLAG_AQ_ENABLE_QUEUES);
sc->init_state = IAVF_RUNNING;
}
/*
* iavf_attach() helper function; initializes the admin queue
* and attempts to establish contact with the PF by
* retrying the initial "API version" message several times
* or until the PF responds.
*/
static int
iavf_setup_vc(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
device_t dev = sc->dev;
int error = 0, ret_error = 0, asq_retries = 0;
bool send_api_ver_retried = 0;
/* Need to set these AQ paramters before initializing AQ */
hw->aq.num_arq_entries = IXL_AQ_LEN;
hw->aq.num_asq_entries = IXL_AQ_LEN;
hw->aq.arq_buf_size = IXL_AQ_BUF_SZ;
hw->aq.asq_buf_size = IXL_AQ_BUF_SZ;
for (int i = 0; i < IAVF_AQ_MAX_ERR; i++) {
/* Initialize admin queue */
error = i40e_init_adminq(hw);
if (error) {
device_printf(dev, "%s: init_adminq failed: %d\n",
__func__, error);
ret_error = 1;
continue;
}
iavf_dbg_init(sc, "Initialized Admin Queue; starting"
" send_api_ver attempt %d", i+1);
retry_send:
/* Send VF's API version */
error = iavf_send_api_ver(sc);
if (error) {
i40e_shutdown_adminq(hw);
ret_error = 2;
device_printf(dev, "%s: unable to send api"
" version to PF on attempt %d, error %d\n",
__func__, i+1, error);
}
asq_retries = 0;
while (!i40e_asq_done(hw)) {
if (++asq_retries > IAVF_AQ_MAX_ERR) {
i40e_shutdown_adminq(hw);
device_printf(dev, "Admin Queue timeout "
"(waiting for send_api_ver), %d more tries...\n",
IAVF_AQ_MAX_ERR - (i + 1));
ret_error = 3;
break;
}
i40e_msec_pause(10);
}
if (asq_retries > IAVF_AQ_MAX_ERR)
continue;
iavf_dbg_init(sc, "Sent API version message to PF");
/* Verify that the VF accepts the PF's API version */
error = iavf_verify_api_ver(sc);
if (error == ETIMEDOUT) {
if (!send_api_ver_retried) {
/* Resend message, one more time */
send_api_ver_retried = true;
device_printf(dev,
"%s: Timeout while verifying API version on first"
" try!\n", __func__);
goto retry_send;
} else {
device_printf(dev,
"%s: Timeout while verifying API version on second"
" try!\n", __func__);
ret_error = 4;
break;
}
}
if (error) {
device_printf(dev,
"%s: Unable to verify API version,"
" error %s\n", __func__, i40e_stat_str(hw, error));
ret_error = 5;
}
break;
}
if (ret_error >= 4)
i40e_shutdown_adminq(hw);
return (ret_error);
}
/*
* iavf_attach() helper function; asks the PF for this VF's
* configuration, and saves the information if it receives it.
*/
static int
iavf_vf_config(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
device_t dev = sc->dev;
int bufsz, error = 0, ret_error = 0;
int asq_retries, retried = 0;
retry_config:
error = iavf_send_vf_config_msg(sc);
if (error) {
device_printf(dev,
"%s: Unable to send VF config request, attempt %d,"
" error %d\n", __func__, retried + 1, error);
ret_error = 2;
}
asq_retries = 0;
while (!i40e_asq_done(hw)) {
if (++asq_retries > IAVF_AQ_MAX_ERR) {
device_printf(dev, "%s: Admin Queue timeout "
"(waiting for send_vf_config_msg), attempt %d\n",
__func__, retried + 1);
ret_error = 3;
goto fail;
}
i40e_msec_pause(10);
}
iavf_dbg_init(sc, "Sent VF config message to PF, attempt %d\n",
retried + 1);
if (!sc->vf_res) {
bufsz = sizeof(struct virtchnl_vf_resource) +
(I40E_MAX_VF_VSI * sizeof(struct virtchnl_vsi_resource));
sc->vf_res = malloc(bufsz, M_IAVF, M_NOWAIT);
if (!sc->vf_res) {
device_printf(dev,
"%s: Unable to allocate memory for VF configuration"
" message from PF on attempt %d\n", __func__, retried + 1);
ret_error = 1;
goto fail;
}
}
/* Check for VF config response */
error = iavf_get_vf_config(sc);
if (error == ETIMEDOUT) {
/* The 1st time we timeout, send the configuration message again */
if (!retried) {
retried++;
goto retry_config;
}
device_printf(dev,
"%s: iavf_get_vf_config() timed out waiting for a response\n",
__func__);
}
if (error) {
device_printf(dev,
"%s: Unable to get VF configuration from PF after %d tries!\n",
__func__, retried + 1);
ret_error = 4;
}
goto done;
fail:
free(sc->vf_res, M_IAVF);
done:
return (ret_error);
}
static int
iavf_if_msix_intr_assign(if_ctx_t ctx, int msix)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct ixl_rx_queue *rx_que = vsi->rx_queues;
struct ixl_tx_queue *tx_que = vsi->tx_queues;
int err, i, rid, vector = 0;
char buf[16];
MPASS(vsi->shared->isc_nrxqsets > 0);
MPASS(vsi->shared->isc_ntxqsets > 0);
/* Admin Que is vector 0*/
rid = vector + 1;
err = iflib_irq_alloc_generic(ctx, &vsi->irq, rid, IFLIB_INTR_ADMIN,
iavf_msix_adminq, sc, 0, "aq");
if (err) {
iflib_irq_free(ctx, &vsi->irq);
device_printf(iflib_get_dev(ctx),
"Failed to register Admin Que handler");
return (err);
}
/* Now set up the stations */
for (i = 0, vector = 1; i < vsi->shared->isc_nrxqsets; i++, vector++, rx_que++) {
rid = vector + 1;
snprintf(buf, sizeof(buf), "rxq%d", i);
err = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid,
IFLIB_INTR_RX, iavf_msix_que, rx_que, rx_que->rxr.me, buf);
/* XXX: Does the driver work as expected if there are fewer num_rx_queues than
* what's expected in the iflib context? */
if (err) {
device_printf(iflib_get_dev(ctx),
"Failed to allocate queue RX int vector %d, err: %d\n", i, err);
vsi->num_rx_queues = i + 1;
goto fail;
}
rx_que->msix = vector;
}
bzero(buf, sizeof(buf));
for (i = 0; i < vsi->shared->isc_ntxqsets; i++, tx_que++) {
snprintf(buf, sizeof(buf), "txq%d", i);
iflib_softirq_alloc_generic(ctx,
&vsi->rx_queues[i % vsi->shared->isc_nrxqsets].que_irq,
IFLIB_INTR_TX, tx_que, tx_que->txr.me, buf);
/* TODO: Maybe call a strategy function for this to figure out which
* interrupts to map Tx queues to. I don't know if there's an immediately
* better way than this other than a user-supplied map, though. */
tx_que->msix = (i % vsi->shared->isc_nrxqsets) + 1;
}
return (0);
fail:
iflib_irq_free(ctx, &vsi->irq);
rx_que = vsi->rx_queues;
for (int i = 0; i < vsi->num_rx_queues; i++, rx_que++)
iflib_irq_free(ctx, &rx_que->que_irq);
return (err);
}
/* Enable all interrupts */
static void
iavf_if_enable_intr(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
iavf_enable_intr(vsi);
}
/* Disable all interrupts */
static void
iavf_if_disable_intr(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
iavf_disable_intr(vsi);
}
static int
iavf_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct i40e_hw *hw = vsi->hw;
struct ixl_rx_queue *rx_que = &vsi->rx_queues[rxqid];
iavf_enable_queue_irq(hw, rx_que->msix - 1);
return (0);
}
static int
iavf_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct i40e_hw *hw = vsi->hw;
struct ixl_tx_queue *tx_que = &vsi->tx_queues[txqid];
iavf_enable_queue_irq(hw, tx_que->msix - 1);
return (0);
}
static int
iavf_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
if_softc_ctx_t scctx = vsi->shared;
struct ixl_tx_queue *que;
int i, j, error = 0;
MPASS(scctx->isc_ntxqsets > 0);
MPASS(ntxqs == 1);
MPASS(scctx->isc_ntxqsets == ntxqsets);
/* Allocate queue structure memory */
if (!(vsi->tx_queues =
(struct ixl_tx_queue *) malloc(sizeof(struct ixl_tx_queue) *ntxqsets, M_IAVF, M_NOWAIT | M_ZERO))) {
device_printf(iflib_get_dev(ctx), "Unable to allocate TX ring memory\n");
return (ENOMEM);
}
for (i = 0, que = vsi->tx_queues; i < ntxqsets; i++, que++) {
struct tx_ring *txr = &que->txr;
txr->me = i;
que->vsi = vsi;
if (!vsi->enable_head_writeback) {
/* Allocate report status array */
if (!(txr->tx_rsq = malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_IAVF, M_NOWAIT))) {
device_printf(iflib_get_dev(ctx), "failed to allocate tx_rsq memory\n");
error = ENOMEM;
goto fail;
}
/* Init report status array */
for (j = 0; j < scctx->isc_ntxd[0]; j++)
txr->tx_rsq[j] = QIDX_INVALID;
}
/* get the virtual and physical address of the hardware queues */
txr->tail = I40E_QTX_TAIL1(txr->me);
txr->tx_base = (struct i40e_tx_desc *)vaddrs[i * ntxqs];
txr->tx_paddr = paddrs[i * ntxqs];
txr->que = que;
}
return (0);
fail:
iavf_if_queues_free(ctx);
return (error);
}
static int
iavf_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nrxqs, int nrxqsets)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct ixl_rx_queue *que;
int i, error = 0;
#ifdef INVARIANTS
if_softc_ctx_t scctx = vsi->shared;
MPASS(scctx->isc_nrxqsets > 0);
MPASS(nrxqs == 1);
MPASS(scctx->isc_nrxqsets == nrxqsets);
#endif
/* Allocate queue structure memory */
if (!(vsi->rx_queues =
(struct ixl_rx_queue *) malloc(sizeof(struct ixl_rx_queue) *
nrxqsets, M_IAVF, M_NOWAIT | M_ZERO))) {
device_printf(iflib_get_dev(ctx), "Unable to allocate RX ring memory\n");
error = ENOMEM;
goto fail;
}
for (i = 0, que = vsi->rx_queues; i < nrxqsets; i++, que++) {
struct rx_ring *rxr = &que->rxr;
rxr->me = i;
que->vsi = vsi;
/* get the virtual and physical address of the hardware queues */
rxr->tail = I40E_QRX_TAIL1(rxr->me);
rxr->rx_base = (union i40e_rx_desc *)vaddrs[i * nrxqs];
rxr->rx_paddr = paddrs[i * nrxqs];
rxr->que = que;
}
return (0);
fail:
iavf_if_queues_free(ctx);
return (error);
}
static void
iavf_if_queues_free(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
if (!vsi->enable_head_writeback) {
struct ixl_tx_queue *que;
int i = 0;
for (i = 0, que = vsi->tx_queues; i < vsi->shared->isc_ntxqsets; i++, que++) {
struct tx_ring *txr = &que->txr;
if (txr->tx_rsq != NULL) {
free(txr->tx_rsq, M_IAVF);
txr->tx_rsq = NULL;
}
}
}
if (vsi->tx_queues != NULL) {
free(vsi->tx_queues, M_IAVF);
vsi->tx_queues = NULL;
}
if (vsi->rx_queues != NULL) {
free(vsi->rx_queues, M_IAVF);
vsi->rx_queues = NULL;
}
}
static int
iavf_check_aq_errors(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
device_t dev = sc->dev;
u32 reg, oldreg;
u8 aq_error = false;
/* check for Admin queue errors */
oldreg = reg = rd32(hw, hw->aq.arq.len);
if (reg & I40E_VF_ARQLEN1_ARQVFE_MASK) {
device_printf(dev, "ARQ VF Error detected\n");
reg &= ~I40E_VF_ARQLEN1_ARQVFE_MASK;
aq_error = true;
}
if (reg & I40E_VF_ARQLEN1_ARQOVFL_MASK) {
device_printf(dev, "ARQ Overflow Error detected\n");
reg &= ~I40E_VF_ARQLEN1_ARQOVFL_MASK;
aq_error = true;
}
if (reg & I40E_VF_ARQLEN1_ARQCRIT_MASK) {
device_printf(dev, "ARQ Critical Error detected\n");
reg &= ~I40E_VF_ARQLEN1_ARQCRIT_MASK;
aq_error = true;
}
if (oldreg != reg)
wr32(hw, hw->aq.arq.len, reg);
oldreg = reg = rd32(hw, hw->aq.asq.len);
if (reg & I40E_VF_ATQLEN1_ATQVFE_MASK) {
device_printf(dev, "ASQ VF Error detected\n");
reg &= ~I40E_VF_ATQLEN1_ATQVFE_MASK;
aq_error = true;
}
if (reg & I40E_VF_ATQLEN1_ATQOVFL_MASK) {
device_printf(dev, "ASQ Overflow Error detected\n");
reg &= ~I40E_VF_ATQLEN1_ATQOVFL_MASK;
aq_error = true;
}
if (reg & I40E_VF_ATQLEN1_ATQCRIT_MASK) {
device_printf(dev, "ASQ Critical Error detected\n");
reg &= ~I40E_VF_ATQLEN1_ATQCRIT_MASK;
aq_error = true;
}
if (oldreg != reg)
wr32(hw, hw->aq.asq.len, reg);
if (aq_error) {
device_printf(dev, "WARNING: Stopping VF!\n");
/*
* A VF reset might not be enough to fix a problem here;
* a PF reset could be required.
*/
sc->init_state = IAVF_RESET_REQUIRED;
iavf_stop(sc);
iavf_request_reset(sc);
}
return (aq_error ? EIO : 0);
}
static enum i40e_status_code
iavf_process_adminq(struct iavf_sc *sc, u16 *pending)
{
enum i40e_status_code status = I40E_SUCCESS;
struct i40e_arq_event_info event;
struct i40e_hw *hw = &sc->hw;
struct virtchnl_msg *v_msg;
int error = 0, loop = 0;
u32 reg;
error = iavf_check_aq_errors(sc);
if (error)
return (I40E_ERR_ADMIN_QUEUE_CRITICAL_ERROR);
event.buf_len = IXL_AQ_BUF_SZ;
event.msg_buf = sc->aq_buffer;
bzero(event.msg_buf, IXL_AQ_BUF_SZ);
v_msg = (struct virtchnl_msg *)&event.desc;
/* clean and process any events */
do {
status = i40e_clean_arq_element(hw, &event, pending);
/*
* Also covers normal case when i40e_clean_arq_element()
* returns "I40E_ERR_ADMIN_QUEUE_NO_WORK"
*/
if (status)
break;
iavf_vc_completion(sc, v_msg->v_opcode,
v_msg->v_retval, event.msg_buf, event.msg_len);
bzero(event.msg_buf, IXL_AQ_BUF_SZ);
} while (*pending && (loop++ < IXL_ADM_LIMIT));
/* Re-enable admin queue interrupt cause */
reg = rd32(hw, I40E_VFINT_ICR0_ENA1);
reg |= I40E_VFINT_ICR0_ENA1_ADMINQ_MASK;
wr32(hw, I40E_VFINT_ICR0_ENA1, reg);
return (status);
}
static void
iavf_if_update_admin_status(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct i40e_hw *hw = &sc->hw;
u16 pending;
iavf_process_adminq(sc, &pending);
iavf_update_link_status(sc);
/*
* If there are still messages to process, reschedule.
* Otherwise, re-enable the Admin Queue interrupt.
*/
if (pending > 0)
iflib_admin_intr_deferred(ctx);
else
iavf_enable_adminq_irq(hw);
}
static u_int
iavf_mc_filter_apply(void *arg, struct sockaddr_dl *sdl, u_int count __unused)
{
struct iavf_sc *sc = arg;
int error;
error = iavf_add_mac_filter(sc, (u8*)LLADDR(sdl), IXL_FILTER_MC);
return (!error);
}
static void
iavf_if_multi_set(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
IOCTL_DEBUGOUT("iavf_if_multi_set: begin");
if (__predict_false(if_llmaddr_count(iflib_get_ifp(ctx)) >=
MAX_MULTICAST_ADDR)) {
/* Delete MC filters and enable mulitcast promisc instead */
iavf_init_multi(sc);
sc->promisc_flags |= FLAG_VF_MULTICAST_PROMISC;
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_CONFIGURE_PROMISC);
return;
}
/* If there aren't too many filters, delete existing MC filters */
iavf_init_multi(sc);
/* And (re-)install filters for all mcast addresses */
if (if_foreach_llmaddr(iflib_get_ifp(ctx), iavf_mc_filter_apply, sc) >
0)
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_ADD_MAC_FILTER);
}
static int
iavf_if_mtu_set(if_ctx_t ctx, uint32_t mtu)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)");
if (mtu > IXL_MAX_FRAME - ETHER_HDR_LEN - ETHER_CRC_LEN -
ETHER_VLAN_ENCAP_LEN)
return (EINVAL);
vsi->shared->isc_max_frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN +
ETHER_VLAN_ENCAP_LEN;
return (0);
}
static void
iavf_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr)
{
#ifdef IXL_DEBUG
struct ifnet *ifp = iflib_get_ifp(ctx);
#endif
struct iavf_sc *sc = iflib_get_softc(ctx);
INIT_DBG_IF(ifp, "begin");
iavf_update_link_status(sc);
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (!sc->link_up)
return;
ifmr->ifm_status |= IFM_ACTIVE;
/* Hardware is always full-duplex */
ifmr->ifm_active |= IFM_FDX;
/* Based on the link speed reported by the PF over the AdminQ, choose a
* PHY type to report. This isn't 100% correct since we don't really
* know the underlying PHY type of the PF, but at least we can report
* a valid link speed...
*/
switch (sc->link_speed) {
case VIRTCHNL_LINK_SPEED_100MB:
ifmr->ifm_active |= IFM_100_TX;
break;
case VIRTCHNL_LINK_SPEED_1GB:
ifmr->ifm_active |= IFM_1000_T;
break;
case VIRTCHNL_LINK_SPEED_10GB:
ifmr->ifm_active |= IFM_10G_SR;
break;
case VIRTCHNL_LINK_SPEED_20GB:
case VIRTCHNL_LINK_SPEED_25GB:
ifmr->ifm_active |= IFM_25G_SR;
break;
case VIRTCHNL_LINK_SPEED_40GB:
ifmr->ifm_active |= IFM_40G_SR4;
break;
default:
ifmr->ifm_active |= IFM_UNKNOWN;
break;
}
INIT_DBG_IF(ifp, "end");
}
static int
iavf_if_media_change(if_ctx_t ctx)
{
struct ifmedia *ifm = iflib_get_media(ctx);
INIT_DEBUGOUT("ixl_media_change: begin");
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
if_printf(iflib_get_ifp(ctx), "Media change is not supported.\n");
return (ENODEV);
}
static int
iavf_if_promisc_set(if_ctx_t ctx, int flags)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ifnet *ifp = iflib_get_ifp(ctx);
sc->promisc_flags = 0;
if (flags & IFF_ALLMULTI || if_llmaddr_count(ifp) >=
MAX_MULTICAST_ADDR)
sc->promisc_flags |= FLAG_VF_MULTICAST_PROMISC;
if (flags & IFF_PROMISC)
sc->promisc_flags |= FLAG_VF_UNICAST_PROMISC;
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_CONFIGURE_PROMISC);
return (0);
}
static void
iavf_if_timer(if_ctx_t ctx, uint16_t qid)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct i40e_hw *hw = &sc->hw;
u32 val;
if (qid != 0)
return;
/* Check for when PF triggers a VF reset */
val = rd32(hw, I40E_VFGEN_RSTAT) &
I40E_VFGEN_RSTAT_VFR_STATE_MASK;
if (val != VIRTCHNL_VFR_VFACTIVE
&& val != VIRTCHNL_VFR_COMPLETED) {
iavf_dbg_info(sc, "reset in progress! (%d)\n", val);
return;
}
/* Fire off the adminq task */
iflib_admin_intr_deferred(ctx);
/* Update stats */
iavf_request_stats(sc);
}
static void
iavf_if_vlan_register(if_ctx_t ctx, u16 vtag)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct iavf_vlan_filter *v;
if ((vtag == 0) || (vtag > 4095)) /* Invalid */
return;
++vsi->num_vlans;
v = malloc(sizeof(struct iavf_vlan_filter), M_IAVF, M_WAITOK | M_ZERO);
SLIST_INSERT_HEAD(sc->vlan_filters, v, next);
v->vlan = vtag;
v->flags = IXL_FILTER_ADD;
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_ADD_VLAN_FILTER);
}
static void
iavf_if_vlan_unregister(if_ctx_t ctx, u16 vtag)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
struct iavf_vlan_filter *v;
int i = 0;
if ((vtag == 0) || (vtag > 4095)) /* Invalid */
return;
SLIST_FOREACH(v, sc->vlan_filters, next) {
if (v->vlan == vtag) {
v->flags = IXL_FILTER_DEL;
++i;
--vsi->num_vlans;
}
}
if (i)
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_DEL_VLAN_FILTER);
}
static uint64_t
iavf_if_get_counter(if_ctx_t ctx, ift_counter cnt)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
struct ixl_vsi *vsi = &sc->vsi;
if_t ifp = iflib_get_ifp(ctx);
switch (cnt) {
case IFCOUNTER_IPACKETS:
return (vsi->ipackets);
case IFCOUNTER_IERRORS:
return (vsi->ierrors);
case IFCOUNTER_OPACKETS:
return (vsi->opackets);
case IFCOUNTER_OERRORS:
return (vsi->oerrors);
case IFCOUNTER_COLLISIONS:
/* Collisions are by standard impossible in 40G/10G Ethernet */
return (0);
case IFCOUNTER_IBYTES:
return (vsi->ibytes);
case IFCOUNTER_OBYTES:
return (vsi->obytes);
case IFCOUNTER_IMCASTS:
return (vsi->imcasts);
case IFCOUNTER_OMCASTS:
return (vsi->omcasts);
case IFCOUNTER_IQDROPS:
return (vsi->iqdrops);
case IFCOUNTER_OQDROPS:
return (vsi->oqdrops);
case IFCOUNTER_NOPROTO:
return (vsi->noproto);
default:
return (if_get_counter_default(ifp, cnt));
}
}
/* iavf_if_needs_restart - Tell iflib when the driver needs to be reinitialized
* @ctx: iflib context
* @event: event code to check
*
* Defaults to returning true for every event.
*
* @returns true if iflib needs to reinit the interface
*/
static bool
iavf_if_needs_restart(if_ctx_t ctx __unused, enum iflib_restart_event event)
{
switch (event) {
case IFLIB_RESTART_VLAN_CONFIG:
/* This case must return true if VLAN anti-spoof checks are
* enabled by the PF driver for the VF.
*/
default:
return (true);
}
}
static void
iavf_free_pci_resources(struct iavf_sc *sc)
{
struct ixl_vsi *vsi = &sc->vsi;
struct ixl_rx_queue *rx_que = vsi->rx_queues;
device_t dev = sc->dev;
/* We may get here before stations are set up */
if (rx_que == NULL)
goto early;
/* Release all interrupts */
iflib_irq_free(vsi->ctx, &vsi->irq);
for (int i = 0; i < vsi->num_rx_queues; i++, rx_que++)
iflib_irq_free(vsi->ctx, &rx_que->que_irq);
early:
if (sc->pci_mem != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->pci_mem), sc->pci_mem);
}
/*
** Requests a VF reset from the PF.
**
** Requires the VF's Admin Queue to be initialized.
*/
static int
iavf_reset(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
device_t dev = sc->dev;
int error = 0;
/* Ask the PF to reset us if we are initiating */
if (sc->init_state != IAVF_RESET_PENDING)
iavf_request_reset(sc);
i40e_msec_pause(100);
error = iavf_reset_complete(hw);
if (error) {
device_printf(dev, "%s: VF reset failed\n",
__func__);
return (error);
}
pci_enable_busmaster(dev);
error = i40e_shutdown_adminq(hw);
if (error) {
device_printf(dev, "%s: shutdown_adminq failed: %d\n",
__func__, error);
return (error);
}
error = i40e_init_adminq(hw);
if (error) {
device_printf(dev, "%s: init_adminq failed: %d\n",
__func__, error);
return (error);
}
iavf_enable_adminq_irq(hw);
return (0);
}
static int
iavf_reset_complete(struct i40e_hw *hw)
{
u32 reg;
/* Wait up to ~10 seconds */
for (int i = 0; i < 100; i++) {
reg = rd32(hw, I40E_VFGEN_RSTAT) &
I40E_VFGEN_RSTAT_VFR_STATE_MASK;
if ((reg == VIRTCHNL_VFR_VFACTIVE) ||
(reg == VIRTCHNL_VFR_COMPLETED))
return (0);
i40e_msec_pause(100);
}
return (EBUSY);
}
static void
iavf_setup_interface(device_t dev, struct iavf_sc *sc)
{
struct ixl_vsi *vsi = &sc->vsi;
if_ctx_t ctx = vsi->ctx;
struct ifnet *ifp = iflib_get_ifp(ctx);
INIT_DBG_DEV(dev, "begin");
vsi->shared->isc_max_frame_size =
ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN
+ ETHER_VLAN_ENCAP_LEN;
#if __FreeBSD_version >= 1100000
if_setbaudrate(ifp, IF_Gbps(40));
#else
if_initbaudrate(ifp, IF_Gbps(40));
#endif
ifmedia_add(vsi->media, IFM_ETHER | IFM_AUTO, 0, NULL);
ifmedia_set(vsi->media, IFM_ETHER | IFM_AUTO);
}
/*
** Get a new filter and add it to the mac filter list.
*/
static struct iavf_mac_filter *
iavf_get_mac_filter(struct iavf_sc *sc)
{
struct iavf_mac_filter *f;
f = malloc(sizeof(struct iavf_mac_filter),
M_IAVF, M_NOWAIT | M_ZERO);
if (f)
SLIST_INSERT_HEAD(sc->mac_filters, f, next);
return (f);
}
/*
** Find the filter with matching MAC address
*/
static struct iavf_mac_filter *
iavf_find_mac_filter(struct iavf_sc *sc, u8 *macaddr)
{
struct iavf_mac_filter *f;
bool match = FALSE;
SLIST_FOREACH(f, sc->mac_filters, next) {
if (cmp_etheraddr(f->macaddr, macaddr)) {
match = TRUE;
break;
}
}
if (!match)
f = NULL;
return (f);
}
/*
** Admin Queue interrupt handler
*/
static int
iavf_msix_adminq(void *arg)
{
struct iavf_sc *sc = arg;
struct i40e_hw *hw = &sc->hw;
u32 reg, mask;
bool do_task = FALSE;
++sc->admin_irq;
reg = rd32(hw, I40E_VFINT_ICR01);
/*
* For masking off interrupt causes that need to be handled before
* they can be re-enabled
*/
mask = rd32(hw, I40E_VFINT_ICR0_ENA1);
/* Check on the cause */
if (reg & I40E_VFINT_ICR0_ADMINQ_MASK) {
mask &= ~I40E_VFINT_ICR0_ENA_ADMINQ_MASK;
do_task = TRUE;
}
wr32(hw, I40E_VFINT_ICR0_ENA1, mask);
iavf_enable_adminq_irq(hw);
if (do_task)
return (FILTER_SCHEDULE_THREAD);
else
return (FILTER_HANDLED);
}
void
iavf_enable_intr(struct ixl_vsi *vsi)
{
struct i40e_hw *hw = vsi->hw;
struct ixl_rx_queue *que = vsi->rx_queues;
iavf_enable_adminq_irq(hw);
for (int i = 0; i < vsi->num_rx_queues; i++, que++)
iavf_enable_queue_irq(hw, que->rxr.me);
}
void
iavf_disable_intr(struct ixl_vsi *vsi)
{
struct i40e_hw *hw = vsi->hw;
struct ixl_rx_queue *que = vsi->rx_queues;
for (int i = 0; i < vsi->num_rx_queues; i++, que++)
iavf_disable_queue_irq(hw, que->rxr.me);
}
static void
iavf_disable_adminq_irq(struct i40e_hw *hw)
{
wr32(hw, I40E_VFINT_DYN_CTL01, 0);
wr32(hw, I40E_VFINT_ICR0_ENA1, 0);
/* flush */
rd32(hw, I40E_VFGEN_RSTAT);
}
static void
iavf_enable_adminq_irq(struct i40e_hw *hw)
{
wr32(hw, I40E_VFINT_DYN_CTL01,
I40E_VFINT_DYN_CTL01_INTENA_MASK |
I40E_VFINT_DYN_CTL01_ITR_INDX_MASK);
wr32(hw, I40E_VFINT_ICR0_ENA1, I40E_VFINT_ICR0_ENA1_ADMINQ_MASK);
/* flush */
rd32(hw, I40E_VFGEN_RSTAT);
}
static void
iavf_enable_queue_irq(struct i40e_hw *hw, int id)
{
u32 reg;
reg = I40E_VFINT_DYN_CTLN1_INTENA_MASK |
I40E_VFINT_DYN_CTLN1_CLEARPBA_MASK |
I40E_VFINT_DYN_CTLN1_ITR_INDX_MASK;
wr32(hw, I40E_VFINT_DYN_CTLN1(id), reg);
}
static void
iavf_disable_queue_irq(struct i40e_hw *hw, int id)
{
wr32(hw, I40E_VFINT_DYN_CTLN1(id),
I40E_VFINT_DYN_CTLN1_ITR_INDX_MASK);
rd32(hw, I40E_VFGEN_RSTAT);
}
static void
iavf_configure_tx_itr(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
struct ixl_vsi *vsi = &sc->vsi;
struct ixl_tx_queue *que = vsi->tx_queues;
vsi->tx_itr_setting = sc->tx_itr;
for (int i = 0; i < vsi->num_tx_queues; i++, que++) {
struct tx_ring *txr = &que->txr;
wr32(hw, I40E_VFINT_ITRN1(IXL_TX_ITR, i),
vsi->tx_itr_setting);
txr->itr = vsi->tx_itr_setting;
txr->latency = IXL_AVE_LATENCY;
}
}
static void
iavf_configure_rx_itr(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
struct ixl_vsi *vsi = &sc->vsi;
struct ixl_rx_queue *que = vsi->rx_queues;
vsi->rx_itr_setting = sc->rx_itr;
for (int i = 0; i < vsi->num_rx_queues; i++, que++) {
struct rx_ring *rxr = &que->rxr;
wr32(hw, I40E_VFINT_ITRN1(IXL_RX_ITR, i),
vsi->rx_itr_setting);
rxr->itr = vsi->rx_itr_setting;
rxr->latency = IXL_AVE_LATENCY;
}
}
/*
* Get initial ITR values from tunable values.
*/
static void
iavf_configure_itr(struct iavf_sc *sc)
{
iavf_configure_tx_itr(sc);
iavf_configure_rx_itr(sc);
}
/*
** Provide a update to the queue RX
** interrupt moderation value.
*/
static void
iavf_set_queue_rx_itr(struct ixl_rx_queue *que)
{
struct ixl_vsi *vsi = que->vsi;
struct i40e_hw *hw = vsi->hw;
struct rx_ring *rxr = &que->rxr;
/* Idle, do nothing */
if (rxr->bytes == 0)
return;
/* Update the hardware if needed */
if (rxr->itr != vsi->rx_itr_setting) {
rxr->itr = vsi->rx_itr_setting;
wr32(hw, I40E_VFINT_ITRN1(IXL_RX_ITR,
que->rxr.me), rxr->itr);
}
}
static int
iavf_msix_que(void *arg)
{
struct ixl_rx_queue *rx_que = arg;
++rx_que->irqs;
iavf_set_queue_rx_itr(rx_que);
// iavf_set_queue_tx_itr(que);
return (FILTER_SCHEDULE_THREAD);
}
/*********************************************************************
* Multicast Initialization
*
* This routine is called by init to reset a fresh state.
*
**********************************************************************/
static void
iavf_init_multi(struct iavf_sc *sc)
{
struct iavf_mac_filter *f;
int mcnt = 0;
/* First clear any multicast filters */
SLIST_FOREACH(f, sc->mac_filters, next) {
if ((f->flags & IXL_FILTER_USED)
&& (f->flags & IXL_FILTER_MC)) {
f->flags |= IXL_FILTER_DEL;
mcnt++;
}
}
if (mcnt > 0)
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_DEL_MAC_FILTER);
}
/*
** Note: this routine updates the OS on the link state
** the real check of the hardware only happens with
** a link interrupt.
*/
void
iavf_update_link_status(struct iavf_sc *sc)
{
struct ixl_vsi *vsi = &sc->vsi;
u64 baudrate;
if (sc->link_up){
if (vsi->link_active == FALSE) {
vsi->link_active = TRUE;
baudrate = ixl_max_vc_speed_to_value(sc->link_speed);
iavf_dbg_info(sc, "baudrate: %lu\n", baudrate);
iflib_link_state_change(vsi->ctx, LINK_STATE_UP, baudrate);
}
} else { /* Link down */
if (vsi->link_active == TRUE) {
vsi->link_active = FALSE;
iflib_link_state_change(vsi->ctx, LINK_STATE_DOWN, 0);
}
}
}
/*********************************************************************
*
* This routine disables all traffic on the adapter by issuing a
* global reset on the MAC and deallocates TX/RX buffers.
*
**********************************************************************/
static void
iavf_stop(struct iavf_sc *sc)
{
struct ifnet *ifp;
ifp = sc->vsi.ifp;
iavf_disable_intr(&sc->vsi);
if (atomic_load_acq_32(&sc->queues_enabled))
iavf_send_vc_msg_sleep(sc, IAVF_FLAG_AQ_DISABLE_QUEUES);
}
static void
iavf_if_stop(if_ctx_t ctx)
{
struct iavf_sc *sc = iflib_get_softc(ctx);
iavf_stop(sc);
}
static void
iavf_config_rss_reg(struct iavf_sc *sc)
{
struct i40e_hw *hw = &sc->hw;
struct ixl_vsi *vsi = &sc->vsi;
u32 lut = 0;
u64 set_hena = 0, hena;
int i, j, que_id;
u32 rss_seed[IXL_RSS_KEY_SIZE_REG];
#ifdef RSS
u32 rss_hash_config;
#endif
/* Don't set up RSS if using a single queue */
if (vsi->num_rx_queues == 1) {
wr32(hw, I40E_VFQF_HENA(0), 0);
wr32(hw, I40E_VFQF_HENA(1), 0);
ixl_flush(hw);
return;
}
#ifdef RSS
/* Fetch the configured RSS key */
rss_getkey((uint8_t *) &rss_seed);
#else
ixl_get_default_rss_key(rss_seed);
#endif
/* Fill out hash function seed */
for (i = 0; i < IXL_RSS_KEY_SIZE_REG; i++)
wr32(hw, I40E_VFQF_HKEY(i), rss_seed[i]);
/* Enable PCTYPES for RSS: */
#ifdef RSS
rss_hash_config = rss_gethashconfig();
if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP);
if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6)
set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP);
#else
set_hena = IXL_DEFAULT_RSS_HENA_XL710;
#endif
hena = (u64)rd32(hw, I40E_VFQF_HENA(0)) |
((u64)rd32(hw, I40E_VFQF_HENA(1)) << 32);
hena |= set_hena;
wr32(hw, I40E_VFQF_HENA(0), (u32)hena);
wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32));
/* Populate the LUT with max no. of queues in round robin fashion */
for (i = 0, j = 0; i < IXL_RSS_VSI_LUT_SIZE; i++, j++) {
if (j == vsi->num_rx_queues)
j = 0;
#ifdef RSS
/*
* Fetch the RSS bucket id for the given indirection entry.
* Cap it at the number of configured buckets (which is
* num_rx_queues.)
*/
que_id = rss_get_indirection_to_bucket(i);
que_id = que_id % vsi->num_rx_queues;
#else
que_id = j;
#endif
/* lut = 4-byte sliding window of 4 lut entries */
lut = (lut << 8) | (que_id & IXL_RSS_VF_LUT_ENTRY_MASK);
/* On i = 3, we have 4 entries in lut; write to the register */
if ((i & 3) == 3) {
wr32(hw, I40E_VFQF_HLUT(i >> 2), lut);
DDPRINTF(sc->dev, "HLUT(%2d): %#010x", i, lut);
}
}
ixl_flush(hw);
}
static void
iavf_config_rss_pf(struct iavf_sc *sc)
{
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_CONFIG_RSS_KEY);
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_SET_RSS_HENA);
iavf_send_vc_msg(sc, IAVF_FLAG_AQ_CONFIG_RSS_LUT);
}
/*
** iavf_config_rss - setup RSS
**
** RSS keys and table are cleared on VF reset.
*/
static void
iavf_config_rss(struct iavf_sc *sc)
{
if (sc->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_REG) {
iavf_dbg_info(sc, "Setting up RSS using VF registers...");
iavf_config_rss_reg(sc);
} else if (sc->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
iavf_dbg_info(sc, "Setting up RSS using messages to PF...");
iavf_config_rss_pf(sc);
} else
device_printf(sc->dev, "VF does not support RSS capability sent by PF.\n");
}
/*
** This routine adds new MAC filters to the sc's list;
** these are later added in hardware by sending a virtual
** channel message.
*/
static int
iavf_add_mac_filter(struct iavf_sc *sc, u8 *macaddr, u16 flags)
{
struct iavf_mac_filter *f;
/* Does one already exist? */
f = iavf_find_mac_filter(sc, macaddr);
if (f != NULL) {
iavf_dbg_filter(sc, "exists: " MAC_FORMAT "\n",
MAC_FORMAT_ARGS(macaddr));
return (EEXIST);
}
/* If not, get a new empty filter */
f = iavf_get_mac_filter(sc);
if (f == NULL) {
device_printf(sc->dev, "%s: no filters available!!\n",
__func__);
return (ENOMEM);
}
iavf_dbg_filter(sc, "marked: " MAC_FORMAT "\n",
MAC_FORMAT_ARGS(macaddr));
bcopy(macaddr, f->macaddr, ETHER_ADDR_LEN);
f->flags |= (IXL_FILTER_ADD | IXL_FILTER_USED);
f->flags |= flags;
return (0);
}
/*
** Marks a MAC filter for deletion.
*/
static int
iavf_del_mac_filter(struct iavf_sc *sc, u8 *macaddr)
{
struct iavf_mac_filter *f;
f = iavf_find_mac_filter(sc, macaddr);
if (f == NULL)
return (ENOENT);
f->flags |= IXL_FILTER_DEL;
return (0);
}
/*
* Re-uses the name from the PF driver.
*/
static void
iavf_add_device_sysctls(struct iavf_sc *sc)
{
struct ixl_vsi *vsi = &sc->vsi;
device_t dev = sc->dev;
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
struct sysctl_oid_list *ctx_list =
SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
struct sysctl_oid *debug_node;
struct sysctl_oid_list *debug_list;
SYSCTL_ADD_PROC(ctx, ctx_list,
OID_AUTO, "current_speed",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_current_speed, "A", "Current Port Speed");
SYSCTL_ADD_PROC(ctx, ctx_list,
OID_AUTO, "tx_itr",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_tx_itr, "I",
"Immediately set TX ITR value for all queues");
SYSCTL_ADD_PROC(ctx, ctx_list,
OID_AUTO, "rx_itr",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_rx_itr, "I",
"Immediately set RX ITR value for all queues");
/* Add sysctls meant to print debug information, but don't list them
* in "sysctl -a" output. */
debug_node = SYSCTL_ADD_NODE(ctx, ctx_list,
OID_AUTO, "debug", CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_NEEDGIANT,
NULL, "Debug Sysctls");
debug_list = SYSCTL_CHILDREN(debug_node);
SYSCTL_ADD_UINT(ctx, debug_list,
OID_AUTO, "shared_debug_mask", CTLFLAG_RW,
&sc->hw.debug_mask, 0, "Shared code debug message level");
SYSCTL_ADD_UINT(ctx, debug_list,
OID_AUTO, "core_debug_mask", CTLFLAG_RW,
&sc->dbg_mask, 0, "Non-shared code debug message level");
SYSCTL_ADD_PROC(ctx, debug_list,
OID_AUTO, "filter_list",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_sw_filter_list, "A", "SW Filter List");
SYSCTL_ADD_PROC(ctx, debug_list,
OID_AUTO, "queue_interrupt_table",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_queue_interrupt_table, "A", "View MSI-X indices for TX/RX queues");
SYSCTL_ADD_PROC(ctx, debug_list,
OID_AUTO, "do_vf_reset",
CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_vf_reset, "A", "Request a VF reset from PF");
SYSCTL_ADD_PROC(ctx, debug_list,
OID_AUTO, "do_vflr_reset",
CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
sc, 0, iavf_sysctl_vflr_reset, "A", "Request a VFLR reset from HW");
/* Add stats sysctls */
ixl_add_vsi_sysctls(dev, vsi, ctx, "vsi");
ixl_add_queues_sysctls(dev, vsi);
}
static void
iavf_init_filters(struct iavf_sc *sc)
{
sc->mac_filters = malloc(sizeof(struct mac_list),
M_IAVF, M_WAITOK | M_ZERO);
SLIST_INIT(sc->mac_filters);
sc->vlan_filters = malloc(sizeof(struct vlan_list),
M_IAVF, M_WAITOK | M_ZERO);
SLIST_INIT(sc->vlan_filters);
}
static void
iavf_free_filters(struct iavf_sc *sc)
{
struct iavf_mac_filter *f;
struct iavf_vlan_filter *v;
while (!SLIST_EMPTY(sc->mac_filters)) {
f = SLIST_FIRST(sc->mac_filters);
SLIST_REMOVE_HEAD(sc->mac_filters, next);
free(f, M_IAVF);
}
free(sc->mac_filters, M_IAVF);
while (!SLIST_EMPTY(sc->vlan_filters)) {
v = SLIST_FIRST(sc->vlan_filters);
SLIST_REMOVE_HEAD(sc->vlan_filters, next);
free(v, M_IAVF);
}
free(sc->vlan_filters, M_IAVF);
}
char *
iavf_vc_speed_to_string(enum virtchnl_link_speed link_speed)
{
int index;
char *speeds[] = {
"Unknown",
"100 Mbps",
"1 Gbps",
"10 Gbps",
"40 Gbps",
"20 Gbps",
"25 Gbps",
};
switch (link_speed) {
case VIRTCHNL_LINK_SPEED_100MB:
index = 1;
break;
case VIRTCHNL_LINK_SPEED_1GB:
index = 2;
break;
case VIRTCHNL_LINK_SPEED_10GB:
index = 3;
break;
case VIRTCHNL_LINK_SPEED_40GB:
index = 4;
break;
case VIRTCHNL_LINK_SPEED_20GB:
index = 5;
break;
case VIRTCHNL_LINK_SPEED_25GB:
index = 6;
break;
case VIRTCHNL_LINK_SPEED_UNKNOWN:
default:
index = 0;
break;
}
return speeds[index];
}
static int
iavf_sysctl_current_speed(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
int error = 0;
error = sysctl_handle_string(oidp,
iavf_vc_speed_to_string(sc->link_speed),
8, req);
return (error);
}
/*
* Sanity check and save off tunable values.
*/
static void
iavf_save_tunables(struct iavf_sc *sc)
{
device_t dev = sc->dev;
/* Save tunable information */
sc->dbg_mask = iavf_core_debug_mask;
sc->hw.debug_mask = iavf_shared_debug_mask;
sc->vsi.enable_head_writeback = !!(iavf_enable_head_writeback);
if (iavf_tx_itr < 0 || iavf_tx_itr > IXL_MAX_ITR) {
device_printf(dev, "Invalid tx_itr value of %d set!\n",
iavf_tx_itr);
device_printf(dev, "tx_itr must be between %d and %d, "
"inclusive\n",
0, IXL_MAX_ITR);
device_printf(dev, "Using default value of %d instead\n",
IXL_ITR_4K);
sc->tx_itr = IXL_ITR_4K;
} else
sc->tx_itr = iavf_tx_itr;
if (iavf_rx_itr < 0 || iavf_rx_itr > IXL_MAX_ITR) {
device_printf(dev, "Invalid rx_itr value of %d set!\n",
iavf_rx_itr);
device_printf(dev, "rx_itr must be between %d and %d, "
"inclusive\n",
0, IXL_MAX_ITR);
device_printf(dev, "Using default value of %d instead\n",
IXL_ITR_8K);
sc->rx_itr = IXL_ITR_8K;
} else
sc->rx_itr = iavf_rx_itr;
}
/*
* Used to set the Tx ITR value for all of the VF's queues.
* Writes to the ITR registers immediately.
*/
static int
iavf_sysctl_tx_itr(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
device_t dev = sc->dev;
int requested_tx_itr;
int error = 0;
requested_tx_itr = sc->tx_itr;
error = sysctl_handle_int(oidp, &requested_tx_itr, 0, req);
if ((error) || (req->newptr == NULL))
return (error);
if (requested_tx_itr < 0 || requested_tx_itr > IXL_MAX_ITR) {
device_printf(dev,
"Invalid TX itr value; value must be between 0 and %d\n",
IXL_MAX_ITR);
return (EINVAL);
}
sc->tx_itr = requested_tx_itr;
iavf_configure_tx_itr(sc);
return (error);
}
/*
* Used to set the Rx ITR value for all of the VF's queues.
* Writes to the ITR registers immediately.
*/
static int
iavf_sysctl_rx_itr(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
device_t dev = sc->dev;
int requested_rx_itr;
int error = 0;
requested_rx_itr = sc->rx_itr;
error = sysctl_handle_int(oidp, &requested_rx_itr, 0, req);
if ((error) || (req->newptr == NULL))
return (error);
if (requested_rx_itr < 0 || requested_rx_itr > IXL_MAX_ITR) {
device_printf(dev,
"Invalid RX itr value; value must be between 0 and %d\n",
IXL_MAX_ITR);
return (EINVAL);
}
sc->rx_itr = requested_rx_itr;
iavf_configure_rx_itr(sc);
return (error);
}
static int
iavf_sysctl_sw_filter_list(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
struct iavf_mac_filter *f;
struct iavf_vlan_filter *v;
device_t dev = sc->dev;
int ftl_len, ftl_counter = 0, error = 0;
struct sbuf *buf;
buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
if (!buf) {
device_printf(dev, "Could not allocate sbuf for output.\n");
return (ENOMEM);
}
sbuf_printf(buf, "\n");
/* Print MAC filters */
sbuf_printf(buf, "MAC Filters:\n");
ftl_len = 0;
SLIST_FOREACH(f, sc->mac_filters, next)
ftl_len++;
if (ftl_len < 1)
sbuf_printf(buf, "(none)\n");
else {
SLIST_FOREACH(f, sc->mac_filters, next) {
sbuf_printf(buf,
MAC_FORMAT ", flags %#06x\n",
MAC_FORMAT_ARGS(f->macaddr), f->flags);
}
}
/* Print VLAN filters */
sbuf_printf(buf, "VLAN Filters:\n");
ftl_len = 0;
SLIST_FOREACH(v, sc->vlan_filters, next)
ftl_len++;
if (ftl_len < 1)
sbuf_printf(buf, "(none)");
else {
SLIST_FOREACH(v, sc->vlan_filters, next) {
sbuf_printf(buf,
"%d, flags %#06x",
v->vlan, v->flags);
/* don't print '\n' for last entry */
if (++ftl_counter != ftl_len)
sbuf_printf(buf, "\n");
}
}
error = sbuf_finish(buf);
if (error)
device_printf(dev, "Error finishing sbuf: %d\n", error);
sbuf_delete(buf);
return (error);
}
/*
* Print out mapping of TX queue indexes and Rx queue indexes
* to MSI-X vectors.
*/
static int
iavf_sysctl_queue_interrupt_table(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
struct ixl_vsi *vsi = &sc->vsi;
device_t dev = sc->dev;
struct sbuf *buf;
int error = 0;
struct ixl_rx_queue *rx_que = vsi->rx_queues;
struct ixl_tx_queue *tx_que = vsi->tx_queues;
buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
if (!buf) {
device_printf(dev, "Could not allocate sbuf for output.\n");
return (ENOMEM);
}
sbuf_cat(buf, "\n");
for (int i = 0; i < vsi->num_rx_queues; i++) {
rx_que = &vsi->rx_queues[i];
sbuf_printf(buf, "(rxq %3d): %d\n", i, rx_que->msix);
}
for (int i = 0; i < vsi->num_tx_queues; i++) {
tx_que = &vsi->tx_queues[i];
sbuf_printf(buf, "(txq %3d): %d\n", i, tx_que->msix);
}
error = sbuf_finish(buf);
if (error)
device_printf(dev, "Error finishing sbuf: %d\n", error);
sbuf_delete(buf);
return (error);
}
#define CTX_ACTIVE(ctx) ((if_getdrvflags(iflib_get_ifp(ctx)) & IFF_DRV_RUNNING))
static int
iavf_sysctl_vf_reset(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
int do_reset = 0, error = 0;
error = sysctl_handle_int(oidp, &do_reset, 0, req);
if ((error) || (req->newptr == NULL))
return (error);
if (do_reset == 1) {
iavf_reset(sc);
if (CTX_ACTIVE(sc->vsi.ctx))
iflib_request_reset(sc->vsi.ctx);
}
return (error);
}
static int
iavf_sysctl_vflr_reset(SYSCTL_HANDLER_ARGS)
{
struct iavf_sc *sc = (struct iavf_sc *)arg1;
device_t dev = sc->dev;
int do_reset = 0, error = 0;
error = sysctl_handle_int(oidp, &do_reset, 0, req);
if ((error) || (req->newptr == NULL))
return (error);
if (do_reset == 1) {
if (!pcie_flr(dev, max(pcie_get_max_completion_timeout(dev) / 1000, 10), true)) {
device_printf(dev, "PCIE FLR failed\n");
error = EIO;
}
else if (CTX_ACTIVE(sc->vsi.ctx))
iflib_request_reset(sc->vsi.ctx);
}
return (error);
}
#undef CTX_ACTIVE