--- /dev/null
+/*******************************************************************************
+ *
+ * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ ******************************************************************************/
+
+#ifndef _I40E_VIRTCHNL_H_
+#define _I40E_VIRTCHNL_H_
+
+#include "i40e_type.h"
+
+/* Description:
+ * This header file describes the VF-PF communication protocol used
+ * by the various i40e drivers.
+ *
+ * Admin queue buffer usage:
+ * desc->opcode is always i40e_aqc_opc_send_msg_to_pf
+ * flags, retval, datalen, and data addr are all used normally.
+ * Firmware copies the cookie fields when sending messages between the PF and
+ * VF, but uses all other fields internally. Due to this limitation, we
+ * must send all messages as "indirect", i.e. using an external buffer.
+ *
+ * All the vsi indexes are relative to the VF. Each VF can have maximum of
+ * three VSIs. All the queue indexes are relative to the VSI. Each VF can
+ * have a maximum of sixteen queues for all of its VSIs.
+ *
+ * The PF is required to return a status code in v_retval for all messages
+ * except RESET_VF, which does not require any response. The return value is of
+ * i40e_status_code type, defined in the i40e_type.h.
+ *
+ * In general, VF driver initialization should roughly follow the order of these
+ * opcodes. The VF driver must first validate the API version of the PF driver,
+ * then request a reset, then get resources, then configure queues and
+ * interrupts. After these operations are complete, the VF driver may start
+ * its queues, optionally add MAC and VLAN filters, and process traffic.
+ */
+
+/* Opcodes for VF-PF communication. These are placed in the v_opcode field
+ * of the virtchnl_msg structure.
+ */
+enum i40e_virtchnl_ops {
+/* VF sends req. to pf for the following
+ * ops.
+ */
+ I40E_VIRTCHNL_OP_UNKNOWN = 0,
+ I40E_VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
+ I40E_VIRTCHNL_OP_RESET_VF,
+ I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
+ I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE,
+ I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE,
+ I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
+ I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
+ I40E_VIRTCHNL_OP_ENABLE_QUEUES,
+ I40E_VIRTCHNL_OP_DISABLE_QUEUES,
+ I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
+ I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
+ I40E_VIRTCHNL_OP_ADD_VLAN,
+ I40E_VIRTCHNL_OP_DEL_VLAN,
+ I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
+ I40E_VIRTCHNL_OP_GET_STATS,
+ I40E_VIRTCHNL_OP_FCOE,
+/* PF sends status change events to vfs using
+ * the following op.
+ */
+ I40E_VIRTCHNL_OP_EVENT,
+};
+
+/* Virtual channel message descriptor. This overlays the admin queue
+ * descriptor. All other data is passed in external buffers.
+ */
+
+struct i40e_virtchnl_msg {
+ u8 pad[8]; /* AQ flags/opcode/len/retval fields */
+ enum i40e_virtchnl_ops v_opcode; /* avoid confusion with desc->opcode */
+ i40e_status v_retval; /* ditto for desc->retval */
+ u32 vfid; /* used by PF when sending to VF */
+};
+
+/* Message descriptions and data structures.*/
+
+/* I40E_VIRTCHNL_OP_VERSION
+ * VF posts its version number to the PF. PF responds with its version number
+ * in the same format, along with a return code.
+ * Reply from PF has its major/minor versions also in param0 and param1.
+ * If there is a major version mismatch, then the VF cannot operate.
+ * If there is a minor version mismatch, then the VF can operate but should
+ * add a warning to the system log.
+ *
+ * This enum element MUST always be specified as == 1, regardless of other
+ * changes in the API. The PF must always respond to this message without
+ * error regardless of version mismatch.
+ */
+#define I40E_VIRTCHNL_VERSION_MAJOR 1
+#define I40E_VIRTCHNL_VERSION_MINOR 0
+struct i40e_virtchnl_version_info {
+ u32 major;
+ u32 minor;
+};
+
+/* I40E_VIRTCHNL_OP_RESET_VF
+ * VF sends this request to PF with no parameters
+ * PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
+ * until reset completion is indicated. The admin queue must be reinitialized
+ * after this operation.
+ *
+ * When reset is complete, PF must ensure that all queues in all VSIs associated
+ * with the VF are stopped, all queue configurations in the HMC are set to 0,
+ * and all MAC and VLAN filters (except the default MAC address) on all VSIs
+ * are cleared.
+ */
+
+/* I40E_VIRTCHNL_OP_GET_VF_RESOURCES
+ * VF sends this request to PF with no parameters
+ * PF responds with an indirect message containing
+ * i40e_virtchnl_vf_resource and one or more
+ * i40e_virtchnl_vsi_resource structures.
+ */
+
+struct i40e_virtchnl_vsi_resource {
+ u16 vsi_id;
+ u16 num_queue_pairs;
+ enum i40e_vsi_type vsi_type;
+ u16 qset_handle;
+ u8 default_mac_addr[ETH_ALEN];
+};
+/* VF offload flags */
+#define I40E_VIRTCHNL_VF_OFFLOAD_L2 0x00000001
+#define I40E_VIRTCHNL_VF_OFFLOAD_FCOE 0x00000004
+#define I40E_VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000
+
+struct i40e_virtchnl_vf_resource {
+ u16 num_vsis;
+ u16 num_queue_pairs;
+ u16 max_vectors;
+ u16 max_mtu;
+
+ u32 vf_offload_flags;
+ u32 max_fcoe_contexts;
+ u32 max_fcoe_filters;
+
+ struct i40e_virtchnl_vsi_resource vsi_res[1];
+};
+
+/* I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE
+ * VF sends this message to set up parameters for one TX queue.
+ * External data buffer contains one instance of i40e_virtchnl_txq_info.
+ * PF configures requested queue and returns a status code.
+ */
+
+/* Tx queue config info */
+struct i40e_virtchnl_txq_info {
+ u16 vsi_id;
+ u16 queue_id;
+ u16 ring_len; /* number of descriptors, multiple of 8 */
+ u16 headwb_enabled;
+ u64 dma_ring_addr;
+ u64 dma_headwb_addr;
+};
+
+/* I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE
+ * VF sends this message to set up parameters for one RX queue.
+ * External data buffer contains one instance of i40e_virtchnl_rxq_info.
+ * PF configures requested queue and returns a status code.
+ */
+
+/* Rx queue config info */
+struct i40e_virtchnl_rxq_info {
+ u16 vsi_id;
+ u16 queue_id;
+ u32 ring_len; /* number of descriptors, multiple of 32 */
+ u16 hdr_size;
+ u16 splithdr_enabled;
+ u32 databuffer_size;
+ u32 max_pkt_size;
+ u64 dma_ring_addr;
+ enum i40e_hmc_obj_rx_hsplit_0 rx_split_pos;
+};
+
+/* I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES
+ * VF sends this message to set parameters for all active TX and RX queues
+ * associated with the specified VSI.
+ * PF configures queues and returns status.
+ * If the number of queues specified is greater than the number of queues
+ * associated with the VSI, an error is returned and no queues are configured.
+ */
+struct i40e_virtchnl_queue_pair_info {
+ /* NOTE: vsi_id and queue_id should be identical for both queues. */
+ struct i40e_virtchnl_txq_info txq;
+ struct i40e_virtchnl_rxq_info rxq;
+};
+
+struct i40e_virtchnl_vsi_queue_config_info {
+ u16 vsi_id;
+ u16 num_queue_pairs;
+ struct i40e_virtchnl_queue_pair_info qpair[1];
+};
+
+/* I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP
+ * VF uses this message to map vectors to queues.
+ * The rxq_map and txq_map fields are bitmaps used to indicate which queues
+ * are to be associated with the specified vector.
+ * The "other" causes are always mapped to vector 0.
+ * PF configures interrupt mapping and returns status.
+ */
+struct i40e_virtchnl_vector_map {
+ u16 vsi_id;
+ u16 vector_id;
+ u16 rxq_map;
+ u16 txq_map;
+ u16 rxitr_idx;
+ u16 txitr_idx;
+};
+
+struct i40e_virtchnl_irq_map_info {
+ u16 num_vectors;
+ struct i40e_virtchnl_vector_map vecmap[1];
+};
+
+/* I40E_VIRTCHNL_OP_ENABLE_QUEUES
+ * I40E_VIRTCHNL_OP_DISABLE_QUEUES
+ * VF sends these message to enable or disable TX/RX queue pairs.
+ * The queues fields are bitmaps indicating which queues to act upon.
+ * (Currently, we only support 16 queues per VF, but we make the field
+ * u32 to allow for expansion.)
+ * PF performs requested action and returns status.
+ */
+struct i40e_virtchnl_queue_select {
+ u16 vsi_id;
+ u16 pad;
+ u32 rx_queues;
+ u32 tx_queues;
+};
+
+/* I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS
+ * VF sends this message in order to add one or more unicast or multicast
+ * address filters for the specified VSI.
+ * PF adds the filters and returns status.
+ */
+
+/* I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS
+ * VF sends this message in order to remove one or more unicast or multicast
+ * filters for the specified VSI.
+ * PF removes the filters and returns status.
+ */
+
+struct i40e_virtchnl_ether_addr {
+ u8 addr[ETH_ALEN];
+ u8 pad[2];
+};
+
+struct i40e_virtchnl_ether_addr_list {
+ u16 vsi_id;
+ u16 num_elements;
+ struct i40e_virtchnl_ether_addr list[1];
+};
+
+/* I40E_VIRTCHNL_OP_ADD_VLAN
+ * VF sends this message to add one or more VLAN tag filters for receives.
+ * PF adds the filters and returns status.
+ * If a port VLAN is configured by the PF, this operation will return an
+ * error to the VF.
+ */
+
+/* I40E_VIRTCHNL_OP_DEL_VLAN
+ * VF sends this message to remove one or more VLAN tag filters for receives.
+ * PF removes the filters and returns status.
+ * If a port VLAN is configured by the PF, this operation will return an
+ * error to the VF.
+ */
+
+struct i40e_virtchnl_vlan_filter_list {
+ u16 vsi_id;
+ u16 num_elements;
+ u16 vlan_id[1];
+};
+
+/* I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
+ * VF sends VSI id and flags.
+ * PF returns status code in retval.
+ * Note: we assume that broadcast accept mode is always enabled.
+ */
+struct i40e_virtchnl_promisc_info {
+ u16 vsi_id;
+ u16 flags;
+};
+
+#define I40E_FLAG_VF_UNICAST_PROMISC 0x00000001
+#define I40E_FLAG_VF_MULTICAST_PROMISC 0x00000002
+
+/* I40E_VIRTCHNL_OP_GET_STATS
+ * VF sends this message to request stats for the selected VSI. VF uses
+ * the i40e_virtchnl_queue_select struct to specify the VSI. The queue_id
+ * field is ignored by the PF.
+ *
+ * PF replies with struct i40e_eth_stats in an external buffer.
+ */
+
+/* I40E_VIRTCHNL_OP_EVENT
+ * PF sends this message to inform the VF driver of events that may affect it.
+ * No direct response is expected from the VF, though it may generate other
+ * messages in response to this one.
+ */
+enum i40e_virtchnl_event_codes {
+ I40E_VIRTCHNL_EVENT_UNKNOWN = 0,
+ I40E_VIRTCHNL_EVENT_LINK_CHANGE,
+ I40E_VIRTCHNL_EVENT_RESET_IMPENDING,
+ I40E_VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
+};
+#define I40E_PF_EVENT_SEVERITY_INFO 0
+#define I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM 255
+
+struct i40e_virtchnl_pf_event {
+ enum i40e_virtchnl_event_codes event;
+ union {
+ struct {
+ enum i40e_aq_link_speed link_speed;
+ bool link_status;
+ } link_event;
+ } event_data;
+
+ int severity;
+};
+
+/* The following are TBD, not necessary for LAN functionality.
+ * I40E_VIRTCHNL_OP_FCOE
+ */
+
+/* VF reset states - these are written into the RSTAT register:
+ * I40E_VFGEN_RSTAT1 on the PF
+ * I40E_VFGEN_RSTAT on the VF
+ * When the PF initiates a reset, it writes 0
+ * When the reset is complete, it writes 1
+ * When the PF detects that the VF has recovered, it writes 2
+ * VF checks this register periodically to determine if a reset has occurred,
+ * then polls it to know when the reset is complete.
+ * If either the PF or VF reads the register while the hardware
+ * is in a reset state, it will return DEADBEEF, which, when masked
+ * will result in 3.
+ */
+enum i40e_vfr_states {
+ I40E_VFR_INPROGRESS = 0,
+ I40E_VFR_COMPLETED,
+ I40E_VFR_VFACTIVE,
+ I40E_VFR_UNKNOWN,
+};
+
+#endif /* _I40E_VIRTCHNL_H_ */
--- /dev/null
+/*******************************************************************************
+ *
+ * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ ******************************************************************************/
+
+#include "i40evf.h"
+#include "i40e_prototype.h"
+
+/* busy wait delay in msec */
+#define I40EVF_BUSY_WAIT_DELAY 10
+#define I40EVF_BUSY_WAIT_COUNT 50
+
+/**
+ * i40evf_send_pf_msg
+ * @adapter: adapter structure
+ * @op: virtual channel opcode
+ * @msg: pointer to message buffer
+ * @len: message length
+ *
+ * Send message to PF and print status if failure.
+ **/
+static int i40evf_send_pf_msg(struct i40evf_adapter *adapter,
+ enum i40e_virtchnl_ops op, u8 *msg, u16 len)
+{
+ struct i40e_hw *hw = &adapter->hw;
+ i40e_status err;
+
+ err = i40e_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
+ if (err)
+ dev_err(&adapter->pdev->dev, "Unable to send opcode %d to PF, error %d, aq status %d\n",
+ op, err, hw->aq.asq_last_status);
+ return err;
+}
+
+/**
+ * i40evf_send_api_ver
+ * @adapter: adapter structure
+ *
+ * Send API version admin queue message to the PF. The reply is not checked
+ * in this function. Returns 0 if the message was successfully
+ * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
+ **/
+int i40evf_send_api_ver(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_version_info vvi;
+
+ vvi.major = I40E_VIRTCHNL_VERSION_MAJOR;
+ vvi.minor = I40E_VIRTCHNL_VERSION_MINOR;
+
+ return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi,
+ sizeof(vvi));
+}
+
+/**
+ * i40evf_verify_api_ver
+ * @adapter: adapter structure
+ *
+ * Compare API versions with the PF. Must be called after admin queue is
+ * initialized. Returns 0 if API versions match, -EIO if
+ * they do not, or I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty.
+ **/
+int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_version_info *pf_vvi;
+ struct i40e_hw *hw = &adapter->hw;
+ struct i40e_arq_event_info event;
+ i40e_status err;
+
+ event.msg_size = I40EVF_MAX_AQ_BUF_SIZE;
+ event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
+ if (!event.msg_buf) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ err = i40evf_clean_arq_element(hw, &event, NULL);
+ if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
+ goto out_alloc;
+
+ err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
+ if (err) {
+ err = -EIO;
+ goto out_alloc;
+ }
+
+ if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) !=
+ I40E_VIRTCHNL_OP_VERSION) {
+ err = -EIO;
+ goto out_alloc;
+ }
+
+ pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
+ if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) ||
+ (pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR))
+ err = -EIO;
+
+out_alloc:
+ kfree(event.msg_buf);
+out:
+ return err;
+}
+
+/**
+ * i40evf_send_vf_config_msg
+ * @adapter: adapter structure
+ *
+ * Send VF configuration request admin queue message to the PF. The reply
+ * is not checked in this function. Returns 0 if the message was
+ * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
+ **/
+int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
+{
+ return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
+ NULL, 0);
+}
+
+/**
+ * i40evf_get_vf_config
+ * @hw: pointer to the hardware structure
+ * @len: length of buffer
+ *
+ * Get VF configuration from PF and populate hw structure. Must be called after
+ * admin queue is initialized. Busy waits until response is received from PF,
+ * with maximum timeout. Response from PF is returned in the buffer for further
+ * processing by the caller.
+ **/
+int i40evf_get_vf_config(struct i40evf_adapter *adapter)
+{
+ struct i40e_hw *hw = &adapter->hw;
+ struct i40e_arq_event_info event;
+ u16 len;
+ i40e_status err;
+
+ len = sizeof(struct i40e_virtchnl_vf_resource) +
+ I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
+ event.msg_size = len;
+ event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
+ if (!event.msg_buf) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ err = i40evf_clean_arq_element(hw, &event, NULL);
+ if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
+ goto out_alloc;
+
+ err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "%s: Error returned from PF, %d, %d\n", __func__,
+ le32_to_cpu(event.desc.cookie_high),
+ le32_to_cpu(event.desc.cookie_low));
+ err = -EIO;
+ goto out_alloc;
+ }
+
+ if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) !=
+ I40E_VIRTCHNL_OP_GET_VF_RESOURCES) {
+ dev_err(&adapter->pdev->dev,
+ "%s: Invalid response from PF, %d, %d\n", __func__,
+ le32_to_cpu(event.desc.cookie_high),
+ le32_to_cpu(event.desc.cookie_low));
+ err = -EIO;
+ goto out_alloc;
+ }
+ memcpy(adapter->vf_res, event.msg_buf, min(event.msg_size, len));
+
+ i40e_vf_parse_hw_config(hw, adapter->vf_res);
+out_alloc:
+ kfree(event.msg_buf);
+out:
+ return err;
+}
+
+/**
+ * i40evf_configure_queues
+ * @adapter: adapter structure
+ *
+ * Request that the PF set up our (previously allocated) queues.
+ **/
+void i40evf_configure_queues(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_vsi_queue_config_info *vqci;
+ struct i40e_virtchnl_queue_pair_info *vqpi;
+ int pairs = adapter->vsi_res->num_queue_pairs;
+ int i, len;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
+ len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
+ (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
+ vqci = kzalloc(len, GFP_ATOMIC);
+ if (!vqci) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+ vqci->vsi_id = adapter->vsi_res->vsi_id;
+ vqci->num_queue_pairs = pairs;
+ vqpi = vqci->qpair;
+ /* Size check is not needed here - HW max is 16 queue pairs, and we
+ * can fit info for 31 of them into the AQ buffer before it overflows.
+ */
+ for (i = 0; i < pairs; i++) {
+ vqpi->txq.vsi_id = vqci->vsi_id;
+ vqpi->txq.queue_id = i;
+ vqpi->txq.ring_len = adapter->tx_rings[i]->count;
+ vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
+
+ vqpi->rxq.vsi_id = vqci->vsi_id;
+ vqpi->rxq.queue_id = i;
+ vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
+ vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
+ vqpi->rxq.max_pkt_size = adapter->netdev->mtu
+ + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
+ vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
+ vqpi++;
+ }
+
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
+ (u8 *)vqci, len);
+ kfree(vqci);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
+}
+
+/**
+ * i40evf_enable_queues
+ * @adapter: adapter structure
+ *
+ * Request that the PF enable all of our queues.
+ **/
+void i40evf_enable_queues(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_queue_select vqs;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
+ vqs.vsi_id = adapter->vsi_res->vsi_id;
+ vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
+ vqs.rx_queues = vqs.tx_queues;
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
+ (u8 *)&vqs, sizeof(vqs));
+ adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
+}
+
+/**
+ * i40evf_disable_queues
+ * @adapter: adapter structure
+ *
+ * Request that the PF disable all of our queues.
+ **/
+void i40evf_disable_queues(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_queue_select vqs;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
+ vqs.vsi_id = adapter->vsi_res->vsi_id;
+ vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
+ vqs.rx_queues = vqs.tx_queues;
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
+ (u8 *)&vqs, sizeof(vqs));
+ adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
+}
+
+/**
+ * i40evf_map_queues
+ * @adapter: adapter structure
+ *
+ * Request that the PF map queues to interrupt vectors. Misc causes, including
+ * admin queue, are always mapped to vector 0.
+ **/
+void i40evf_map_queues(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_irq_map_info *vimi;
+ int v_idx, q_vectors, len;
+ struct i40e_q_vector *q_vector;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
+
+ q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ len = sizeof(struct i40e_virtchnl_irq_map_info) +
+ (adapter->num_msix_vectors *
+ sizeof(struct i40e_virtchnl_vector_map));
+ vimi = kzalloc(len, GFP_ATOMIC);
+ if (!vimi) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+
+ vimi->num_vectors = adapter->num_msix_vectors;
+ /* Queue vectors first */
+ for (v_idx = 0; v_idx < q_vectors; v_idx++) {
+ q_vector = adapter->q_vector[v_idx];
+ vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
+ vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
+ vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
+ vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
+ }
+ /* Misc vector last - this is only for AdminQ messages */
+ vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
+ vimi->vecmap[v_idx].vector_id = 0;
+ vimi->vecmap[v_idx].txq_map = 0;
+ vimi->vecmap[v_idx].rxq_map = 0;
+
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
+ (u8 *)vimi, len);
+ kfree(vimi);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
+}
+
+/**
+ * i40evf_add_ether_addrs
+ * @adapter: adapter structure
+ * @addrs: the MAC address filters to add (contiguous)
+ * @count: number of filters
+ *
+ * Request that the PF add one or more addresses to our filters.
+ **/
+void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_ether_addr_list *veal;
+ int len, i = 0, count = 0;
+ struct i40evf_mac_filter *f;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ if (f->add)
+ count++;
+ }
+ if (!count) {
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
+
+ len = sizeof(struct i40e_virtchnl_ether_addr_list) +
+ (count * sizeof(struct i40e_virtchnl_ether_addr));
+ if (len > I40EVF_MAX_AQ_BUF_SIZE) {
+ dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request.\n",
+ __func__);
+ count = (I40EVF_MAX_AQ_BUF_SIZE -
+ sizeof(struct i40e_virtchnl_ether_addr_list)) /
+ sizeof(struct i40e_virtchnl_ether_addr);
+ len = I40EVF_MAX_AQ_BUF_SIZE;
+ }
+
+ veal = kzalloc(len, GFP_ATOMIC);
+ if (!veal) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+ veal->vsi_id = adapter->vsi_res->vsi_id;
+ veal->num_elements = count;
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ if (f->add) {
+ memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
+ i++;
+ f->add = false;
+ }
+ }
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
+ (u8 *)veal, len);
+ kfree(veal);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
+
+}
+
+/**
+ * i40evf_del_ether_addrs
+ * @adapter: adapter structure
+ * @addrs: the MAC address filters to remove (contiguous)
+ * @count: number of filtes
+ *
+ * Request that the PF remove one or more addresses from our filters.
+ **/
+void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_ether_addr_list *veal;
+ struct i40evf_mac_filter *f, *ftmp;
+ int len, i = 0, count = 0;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ if (f->remove)
+ count++;
+ }
+ if (!count) {
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
+
+ len = sizeof(struct i40e_virtchnl_ether_addr_list) +
+ (count * sizeof(struct i40e_virtchnl_ether_addr));
+ if (len > I40EVF_MAX_AQ_BUF_SIZE) {
+ dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request.\n",
+ __func__);
+ count = (I40EVF_MAX_AQ_BUF_SIZE -
+ sizeof(struct i40e_virtchnl_ether_addr_list)) /
+ sizeof(struct i40e_virtchnl_ether_addr);
+ len = I40EVF_MAX_AQ_BUF_SIZE;
+ }
+ veal = kzalloc(len, GFP_ATOMIC);
+ if (!veal) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+ veal->vsi_id = adapter->vsi_res->vsi_id;
+ veal->num_elements = count;
+ list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
+ if (f->remove) {
+ memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
+ i++;
+ list_del(&f->list);
+ kfree(f);
+ }
+ }
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
+ (u8 *)veal, len);
+ kfree(veal);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
+}
+
+/**
+ * i40evf_add_vlans
+ * @adapter: adapter structure
+ * @vlans: the VLANs to add
+ * @count: number of VLANs
+ *
+ * Request that the PF add one or more VLAN filters to our VSI.
+ **/
+void i40evf_add_vlans(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_vlan_filter_list *vvfl;
+ int len, i = 0, count = 0;
+ struct i40evf_vlan_filter *f;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+
+ list_for_each_entry(f, &adapter->vlan_filter_list, list) {
+ if (f->add)
+ count++;
+ }
+ if (!count) {
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
+
+ len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
+ (count * sizeof(u16));
+ if (len > I40EVF_MAX_AQ_BUF_SIZE) {
+ dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request.\n",
+ __func__);
+ count = (I40EVF_MAX_AQ_BUF_SIZE -
+ sizeof(struct i40e_virtchnl_vlan_filter_list)) /
+ sizeof(u16);
+ len = I40EVF_MAX_AQ_BUF_SIZE;
+ }
+ vvfl = kzalloc(len, GFP_ATOMIC);
+ if (!vvfl) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+ vvfl->vsi_id = adapter->vsi_res->vsi_id;
+ vvfl->num_elements = count;
+ list_for_each_entry(f, &adapter->vlan_filter_list, list) {
+ if (f->add) {
+ vvfl->vlan_id[i] = f->vlan;
+ i++;
+ f->add = false;
+ }
+ }
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
+ kfree(vvfl);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
+}
+
+/**
+ * i40evf_del_vlans
+ * @adapter: adapter structure
+ * @vlans: the VLANs to remove
+ * @count: number of VLANs
+ *
+ * Request that the PF remove one or more VLAN filters from our VSI.
+ **/
+void i40evf_del_vlans(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_vlan_filter_list *vvfl;
+ struct i40evf_vlan_filter *f, *ftmp;
+ int len, i = 0, count = 0;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+
+ list_for_each_entry(f, &adapter->vlan_filter_list, list) {
+ if (f->remove)
+ count++;
+ }
+ if (!count) {
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
+
+ len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
+ (count * sizeof(u16));
+ if (len > I40EVF_MAX_AQ_BUF_SIZE) {
+ dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request.\n",
+ __func__);
+ count = (I40EVF_MAX_AQ_BUF_SIZE -
+ sizeof(struct i40e_virtchnl_vlan_filter_list)) /
+ sizeof(u16);
+ len = I40EVF_MAX_AQ_BUF_SIZE;
+ }
+ vvfl = kzalloc(len, GFP_ATOMIC);
+ if (!vvfl) {
+ dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n",
+ __func__);
+ return;
+ }
+ vvfl->vsi_id = adapter->vsi_res->vsi_id;
+ vvfl->num_elements = count;
+ list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
+ if (f->remove) {
+ vvfl->vlan_id[i] = f->vlan;
+ i++;
+ list_del(&f->list);
+ kfree(f);
+ }
+ }
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
+ kfree(vvfl);
+ adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
+ adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
+}
+
+/**
+ * i40evf_set_promiscuous
+ * @adapter: adapter structure
+ * @flags: bitmask to control unicast/multicast promiscuous.
+ *
+ * Request that the PF enable promiscuous mode for our VSI.
+ **/
+void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
+{
+ struct i40e_virtchnl_promisc_info vpi;
+
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
+ __func__, adapter->current_op);
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
+ vpi.vsi_id = adapter->vsi_res->vsi_id;
+ vpi.flags = flags;
+ i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
+ (u8 *)&vpi, sizeof(vpi));
+}
+
+/**
+ * i40evf_request_stats
+ * @adapter: adapter structure
+ *
+ * Request VSI statistics from PF.
+ **/
+void i40evf_request_stats(struct i40evf_adapter *adapter)
+{
+ struct i40e_virtchnl_queue_select vqs;
+ if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
+ /* no error message, this isn't crucial */
+ return;
+ }
+ adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
+ vqs.vsi_id = adapter->vsi_res->vsi_id;
+ /* queue maps are ignored for this message - only the vsi is used */
+ if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
+ (u8 *)&vqs, sizeof(vqs)))
+ /* if the request failed, don't lock out others */
+ adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
+}
+
+/**
+ * i40evf_virtchnl_completion
+ * @adapter: adapter structure
+ * @v_opcode: opcode sent by PF
+ * @v_retval: retval sent by PF
+ * @msg: message sent by PF
+ * @msglen: message length
+ *
+ * Asynchronous completion function for admin queue messages. Rather than busy
+ * wait, we fire off our requests and assume that no errors will be returned.
+ * This function handles the reply messages.
+ **/
+void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
+ enum i40e_virtchnl_ops v_opcode,
+ i40e_status v_retval,
+ u8 *msg, u16 msglen)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
+ struct i40e_virtchnl_pf_event *vpe =
+ (struct i40e_virtchnl_pf_event *)msg;
+ switch (vpe->event) {
+ case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
+ adapter->link_up =
+ vpe->event_data.link_event.link_status;
+ if (adapter->link_up && !netif_carrier_ok(netdev)) {
+ dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
+ netif_carrier_on(netdev);
+ netif_tx_wake_all_queues(netdev);
+ } else if (!adapter->link_up) {
+ dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
+ netif_carrier_off(netdev);
+ netif_tx_stop_all_queues(netdev);
+ }
+ break;
+ case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
+ adapter->state = __I40EVF_RESETTING;
+ schedule_work(&adapter->reset_task);
+ dev_info(&adapter->pdev->dev,
+ "%s: hardware reset pending\n", __func__);
+ break;
+ default:
+ dev_err(&adapter->pdev->dev,
+ "%s: Unknown event %d from pf\n",
+ __func__, vpe->event);
+ break;
+
+ }
+ return;
+ }
+ if (v_opcode != adapter->current_op) {
+ dev_err(&adapter->pdev->dev, "%s: Pending op is %d, received %d.\n",
+ __func__, adapter->current_op, v_opcode);
+ /* We're probably completely screwed at this point, but clear
+ * the current op and try to carry on....
+ */
+ adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
+ return;
+ }
+ if (v_retval) {
+ dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d!\n",
+ __func__, v_retval, v_opcode);
+ }
+ switch (v_opcode) {
+ case I40E_VIRTCHNL_OP_GET_STATS: {
+ struct i40e_eth_stats *stats =
+ (struct i40e_eth_stats *)msg;
+ adapter->net_stats.rx_packets = stats->rx_unicast +
+ stats->rx_multicast +
+ stats->rx_broadcast;
+ adapter->net_stats.tx_packets = stats->tx_unicast +
+ stats->tx_multicast +
+ stats->tx_broadcast;
+ adapter->net_stats.rx_bytes = stats->rx_bytes;
+ adapter->net_stats.tx_bytes = stats->tx_bytes;
+ adapter->net_stats.rx_errors = stats->rx_errors;
+ adapter->net_stats.tx_errors = stats->tx_errors;
+ adapter->net_stats.rx_dropped = stats->rx_missed;
+ adapter->net_stats.tx_dropped = stats->tx_discards;
+ adapter->current_stats = *stats;
+ }
+ break;
+ case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER);
+ break;
+ case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER);
+ break;
+ case I40E_VIRTCHNL_OP_ADD_VLAN:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER);
+ break;
+ case I40E_VIRTCHNL_OP_DEL_VLAN:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER);
+ break;
+ case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES);
+ /* enable transmits */
+ i40evf_irq_enable(adapter, true);
+ netif_tx_start_all_queues(adapter->netdev);
+ netif_carrier_on(adapter->netdev);
+ break;
+ case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
+ break;
+ case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);
+ break;
+ case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
+ adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS);
+ break;
+ default:
+ dev_warn(&adapter->pdev->dev, "%s: Received unexpected message %d from PF.\n",
+ __func__, v_opcode);
+ break;
+ } /* switch v_opcode */
+ adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
+}
projects / platform / kernel / linux-stable.git / commitdiff