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Date: Sun, 28 Jan 2024 21:02:49 -0800
From: Shinas Rasheed <srasheed@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <hgani@...vell.com>, <vimleshk@...vell.com>, <sedara@...vell.com>,
<srasheed@...vell.com>, <egallen@...hat.com>, <mschmidt@...hat.com>,
<pabeni@...hat.com>, <kuba@...nel.org>, <horms@...nel.org>,
<wizhao@...hat.com>, <kheib@...hat.com>, <konguyen@...hat.com>,
Veerasenareddy Burru <vburru@...vell.com>,
Satananda Burla
<sburla@...vell.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet
<edumazet@...gle.com>
Subject: [PATCH net-next v5 3/8] octeon_ep_vf: add VF-PF mailbox communication.
Implement VF-PF mailbox to send all control commands from VF to PF
and receive responses and notifications from PF to VF.
Signed-off-by: Shinas Rasheed <srasheed@...vell.com>
---
V5:
- No changes
V4: https://lore.kernel.org/all/20240108124213.2966536-4-srasheed@marvell.com/
- No changes
V3: https://lore.kernel.org/all/20240105203823.2953604-4-srasheed@marvell.com/
- No changes
V2: https://lore.kernel.org/all/20231223134000.2906144-4-srasheed@marvell.com/
- No changes
V1: https://lore.kernel.org/all/20231221092844.2885872-4-srasheed@marvell.com/
.../marvell/octeon_ep_vf/octep_vf_main.c | 103 ++++++
.../marvell/octeon_ep_vf/octep_vf_main.h | 1 +
.../marvell/octeon_ep_vf/octep_vf_mbox.c | 336 +++++++++++++++++-
.../marvell/octeon_ep_vf/octep_vf_mbox.h | 143 +++++++-
4 files changed, 581 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c
index 50a2a13c5f2e..51f92c8223e8 100644
--- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c
@@ -187,6 +187,19 @@ static netdev_tx_t octep_vf_start_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
}
+int octep_vf_get_link_info(struct octep_vf_device *oct)
+{
+ int ret, size;
+
+ ret = octep_vf_mbox_bulk_read(oct, OCTEP_PFVF_MBOX_CMD_GET_LINK_INFO,
+ (u8 *)&oct->link_info, &size);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Get VF link info failed via VF Mbox\n");
+ return ret;
+ }
+ return 0;
+}
+
/**
* octep_vf_tx_timeout_task - work queue task to Handle Tx queue timeout.
*
@@ -225,11 +238,84 @@ static void octep_vf_tx_timeout(struct net_device *netdev, unsigned int txqueue)
queue_work(octep_vf_wq, &oct->tx_timeout_task);
}
+static int octep_vf_set_mac(struct net_device *netdev, void *p)
+{
+ struct octep_vf_device *oct = netdev_priv(netdev);
+ struct sockaddr *addr = (struct sockaddr *)p;
+ int err;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ err = octep_vf_mbox_set_mac_addr(oct, addr->sa_data);
+ if (err)
+ return err;
+
+ memcpy(oct->mac_addr, addr->sa_data, ETH_ALEN);
+ eth_hw_addr_set(netdev, addr->sa_data);
+
+ return 0;
+}
+
+static int octep_vf_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct octep_vf_device *oct = netdev_priv(netdev);
+ struct octep_vf_iface_link_info *link_info;
+ int err;
+
+ link_info = &oct->link_info;
+ if (link_info->mtu == new_mtu)
+ return 0;
+
+ err = octep_vf_mbox_set_mtu(oct, new_mtu);
+ if (!err) {
+ oct->link_info.mtu = new_mtu;
+ netdev->mtu = new_mtu;
+ }
+ return err;
+}
+
+static int octep_vf_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct octep_vf_device *oct = netdev_priv(netdev);
+ u16 rx_offloads = 0, tx_offloads = 0;
+ int err;
+
+ /* We only support features received from firmware */
+ if ((features & netdev->hw_features) != features)
+ return -EINVAL;
+
+ if (features & NETIF_F_TSO)
+ tx_offloads |= OCTEP_VF_TX_OFFLOAD_TSO;
+
+ if (features & NETIF_F_TSO6)
+ tx_offloads |= OCTEP_VF_TX_OFFLOAD_TSO;
+
+ if (features & NETIF_F_IP_CSUM)
+ tx_offloads |= OCTEP_VF_TX_OFFLOAD_CKSUM;
+
+ if (features & NETIF_F_IPV6_CSUM)
+ tx_offloads |= OCTEP_VF_TX_OFFLOAD_CKSUM;
+
+ if (features & NETIF_F_RXCSUM)
+ rx_offloads |= OCTEP_VF_RX_OFFLOAD_CKSUM;
+
+ err = octep_vf_mbox_set_offloads(oct, tx_offloads, rx_offloads);
+ if (!err)
+ netdev->features = features;
+
+ return err;
+}
+
static const struct net_device_ops octep_vf_netdev_ops = {
.ndo_open = octep_vf_open,
.ndo_stop = octep_vf_stop,
.ndo_start_xmit = octep_vf_start_xmit,
.ndo_tx_timeout = octep_vf_tx_timeout,
+ .ndo_set_mac_address = octep_vf_set_mac,
+ .ndo_change_mtu = octep_vf_change_mtu,
+ .ndo_set_features = octep_vf_set_features,
};
static const char *octep_vf_devid_to_str(struct octep_vf_device *oct)
@@ -411,11 +497,28 @@ static int octep_vf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_mbox_version;
}
+ if (octep_vf_mbox_get_fw_info(octep_vf_dev)) {
+ dev_err(&pdev->dev, "unable to get fw info\n");
+ err = -EINVAL;
+ goto err_mbox_version;
+ }
+
netdev->hw_features = NETIF_F_SG;
+ if (OCTEP_VF_TX_IP_CSUM(octep_vf_dev->fw_info.tx_ol_flags))
+ netdev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+
+ if (OCTEP_VF_RX_IP_CSUM(octep_vf_dev->fw_info.rx_ol_flags))
+ netdev->hw_features |= NETIF_F_RXCSUM;
+
netdev->min_mtu = OCTEP_VF_MIN_MTU;
netdev->max_mtu = OCTEP_VF_MAX_MTU;
netdev->mtu = OCTEP_VF_DEFAULT_MTU;
+ if (OCTEP_VF_TX_TSO(octep_vf_dev->fw_info.tx_ol_flags)) {
+ netdev->hw_features |= NETIF_F_TSO;
+ netif_set_tso_max_size(netdev, netdev->max_mtu);
+ }
+
netdev->features |= netdev->hw_features;
octep_vf_get_mac_addr(octep_vf_dev, octep_vf_dev->mac_addr);
eth_hw_addr_set(netdev, octep_vf_dev->mac_addr);
diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h
index e22e393c6ee2..5a3b545ad590 100644
--- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h
+++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h
@@ -327,6 +327,7 @@ void octep_vf_device_setup_cn93(struct octep_vf_device *oct);
void octep_vf_device_setup_cnxk(struct octep_vf_device *oct);
int octep_vf_iq_process_completions(struct octep_vf_iq *iq, u16 budget);
int octep_vf_oq_process_rx(struct octep_vf_oq *oq, int budget);
+int octep_vf_get_link_info(struct octep_vf_device *oct);
int octep_vf_get_if_stats(struct octep_vf_device *oct);
void octep_vf_mbox_work(struct work_struct *work);
#endif /* _OCTEP_VF_MAIN_H_ */
diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c
index 1c1fe293fc50..2eab21e43048 100644
--- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c
+++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.c
@@ -10,6 +10,15 @@
#include "octep_vf_config.h"
#include "octep_vf_main.h"
+/* When a new command is implemented, the below table should be updated
+ * with new command and it's version info.
+ */
+static u32 pfvf_cmd_versions[OCTEP_PFVF_MBOX_CMD_MAX] = {
+ [0 ... OCTEP_PFVF_MBOX_CMD_DEV_REMOVE] = OCTEP_PFVF_MBOX_VERSION_V1,
+ [OCTEP_PFVF_MBOX_CMD_GET_FW_INFO ... OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS] =
+ OCTEP_PFVF_MBOX_VERSION_V2
+};
+
int octep_vf_setup_mbox(struct octep_vf_device *oct)
{
int ring = 0;
@@ -23,6 +32,7 @@ int octep_vf_setup_mbox(struct octep_vf_device *oct)
oct->hw_ops.setup_mbox_regs(oct, ring);
INIT_WORK(&oct->mbox->wk.work, octep_vf_mbox_work);
oct->mbox->wk.ctxptr = oct;
+ oct->mbox_neg_ver = OCTEP_PFVF_MBOX_VERSION_CURRENT;
dev_info(&oct->pdev->dev, "setup vf mbox successfully\n");
return 0;
}
@@ -42,55 +52,379 @@ void octep_vf_delete_mbox(struct octep_vf_device *oct)
int octep_vf_mbox_version_check(struct octep_vf_device *oct)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_version.opcode = OCTEP_PFVF_MBOX_CMD_VERSION;
+ cmd.s_version.version = OCTEP_PFVF_MBOX_VERSION_CURRENT;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret == OCTEP_PFVF_MBOX_CMD_STATUS_NACK) {
+ dev_err(&oct->pdev->dev,
+ "VF Mbox version is incompatible with PF\n");
+ return -EINVAL;
+ }
+ oct->mbox_neg_ver = (u32)rsp.s_version.version;
+ dev_dbg(&oct->pdev->dev,
+ "VF Mbox version:%u Negotiated VF version with PF:%u\n",
+ (u32)cmd.s_version.version,
+ (u32)rsp.s_version.version);
return 0;
}
void octep_vf_mbox_work(struct work_struct *work)
{
+ struct octep_vf_mbox_wk *wk = container_of(work, struct octep_vf_mbox_wk, work);
+ struct octep_vf_iface_link_info *link_info;
+ struct octep_vf_device *oct = NULL;
+ struct octep_vf_mbox *mbox = NULL;
+ union octep_pfvf_mbox_word *notif;
+ u64 pf_vf_data;
+
+ oct = (struct octep_vf_device *)wk->ctxptr;
+ link_info = &oct->link_info;
+ mbox = oct->mbox;
+ pf_vf_data = readq(mbox->mbox_read_reg);
+
+ notif = (union octep_pfvf_mbox_word *)&pf_vf_data;
+
+ switch (notif->s.opcode) {
+ case OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS:
+ if (notif->s_link_status.status) {
+ link_info->oper_up = OCTEP_PFVF_LINK_STATUS_UP;
+ netif_carrier_on(oct->netdev);
+ dev_info(&oct->pdev->dev, "netif_carrier_on\n");
+ } else {
+ link_info->oper_up = OCTEP_PFVF_LINK_STATUS_DOWN;
+ netif_carrier_off(oct->netdev);
+ dev_info(&oct->pdev->dev, "netif_carrier_off\n");
+ }
+ break;
+ default:
+ dev_err(&oct->pdev->dev,
+ "Received unsupported notif %d\n", notif->s.opcode);
+ break;
+ }
+}
+
+static int __octep_vf_mbox_send_cmd(struct octep_vf_device *oct,
+ union octep_pfvf_mbox_word cmd,
+ union octep_pfvf_mbox_word *rsp)
+{
+ struct octep_vf_mbox *mbox = oct->mbox;
+ u64 reg_val = 0ull;
+ int count;
+
+ if (!mbox)
+ return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP;
+
+ cmd.s.type = OCTEP_PFVF_MBOX_TYPE_CMD;
+ writeq(cmd.u64, mbox->mbox_write_reg);
+
+ /* No response for notification messages */
+ if (!rsp)
+ return 0;
+
+ for (count = 0; count < OCTEP_PFVF_MBOX_TIMEOUT_WAIT_COUNT; count++) {
+ usleep_range(1000, 1500);
+ reg_val = readq(mbox->mbox_write_reg);
+ if (reg_val != cmd.u64) {
+ rsp->u64 = reg_val;
+ break;
+ }
+ }
+ if (count == OCTEP_PFVF_MBOX_TIMEOUT_WAIT_COUNT) {
+ dev_err(&oct->pdev->dev, "mbox send command timed out\n");
+ return OCTEP_PFVF_MBOX_CMD_STATUS_TIMEDOUT;
+ }
+ if (rsp->s.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "mbox_send: Received NACK\n");
+ return OCTEP_PFVF_MBOX_CMD_STATUS_NACK;
+ }
+ rsp->u64 = reg_val;
+ return 0;
+}
+
+int octep_vf_mbox_send_cmd(struct octep_vf_device *oct, union octep_pfvf_mbox_word cmd,
+ union octep_pfvf_mbox_word *rsp)
+{
+ struct octep_vf_mbox *mbox = oct->mbox;
+ int ret;
+
+ if (!mbox)
+ return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP;
+ mutex_lock(&mbox->lock);
+ if (pfvf_cmd_versions[cmd.s.opcode] > oct->mbox_neg_ver) {
+ dev_dbg(&oct->pdev->dev, "CMD:%d not supported in Version:%d\n",
+ cmd.s.opcode, oct->mbox_neg_ver);
+ mutex_unlock(&mbox->lock);
+ return -EOPNOTSUPP;
+ }
+ ret = __octep_vf_mbox_send_cmd(oct, cmd, rsp);
+ mutex_unlock(&mbox->lock);
+ return ret;
+}
+
+int octep_vf_mbox_bulk_read(struct octep_vf_device *oct, enum octep_pfvf_mbox_opcode opcode,
+ u8 *data, int *size)
+{
+ struct octep_vf_mbox *mbox = oct->mbox;
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int data_len = 0, tmp_len = 0;
+ int read_cnt, i = 0, ret;
+
+ if (!mbox)
+ return OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP;
+
+ mutex_lock(&mbox->lock);
+ cmd.u64 = 0;
+ cmd.s_data.opcode = opcode;
+ cmd.s_data.frag = 0;
+ /* Send cmd to read data from PF */
+ ret = __octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "send mbox cmd fail for data request\n");
+ mutex_unlock(&mbox->lock);
+ return ret;
+ }
+ /* PF sends the data length of requested CMD
+ * in ACK
+ */
+ data_len = *((int32_t *)rsp.s_data.data);
+ tmp_len = data_len;
+ cmd.u64 = 0;
+ rsp.u64 = 0;
+ cmd.s_data.opcode = opcode;
+ cmd.s_data.frag = 1;
+ while (data_len) {
+ ret = __octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "send mbox cmd fail for data request\n");
+ mutex_unlock(&mbox->lock);
+ mbox->mbox_data.data_index = 0;
+ memset(mbox->mbox_data.recv_data, 0, OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE);
+ return ret;
+ }
+ if (data_len > OCTEP_PFVF_MBOX_MAX_DATA_SIZE) {
+ data_len -= OCTEP_PFVF_MBOX_MAX_DATA_SIZE;
+ read_cnt = OCTEP_PFVF_MBOX_MAX_DATA_SIZE;
+ } else {
+ read_cnt = data_len;
+ data_len = 0;
+ }
+ for (i = 0; i < read_cnt; i++) {
+ mbox->mbox_data.recv_data[mbox->mbox_data.data_index] =
+ rsp.s_data.data[i];
+ mbox->mbox_data.data_index++;
+ }
+ cmd.u64 = 0;
+ rsp.u64 = 0;
+ cmd.s_data.opcode = opcode;
+ cmd.s_data.frag = 1;
+ }
+ memcpy(data, mbox->mbox_data.recv_data, tmp_len);
+ *size = tmp_len;
+ mbox->mbox_data.data_index = 0;
+ memset(mbox->mbox_data.recv_data, 0, OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE);
+ mutex_unlock(&mbox->lock);
+ return 0;
}
int octep_vf_mbox_set_mtu(struct octep_vf_device *oct, int mtu)
{
+ int frame_size = mtu + ETH_HLEN + ETH_FCS_LEN;
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret = 0;
+
+ if (mtu < ETH_MIN_MTU || frame_size > ETH_MAX_MTU) {
+ dev_err(&oct->pdev->dev,
+ "Failed to set MTU to %d MIN MTU:%d MAX MTU:%d\n",
+ mtu, ETH_MIN_MTU, ETH_MAX_MTU);
+ return -EINVAL;
+ }
+
+ cmd.u64 = 0;
+ cmd.s_set_mtu.opcode = OCTEP_PFVF_MBOX_CMD_SET_MTU;
+ cmd.s_set_mtu.mtu = mtu;
+
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Mbox send failed; err=%d\n", ret);
+ return ret;
+ }
+ if (rsp.s_set_mtu.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Received Mbox NACK from PF for MTU:%d\n", mtu);
+ return -EINVAL;
+ }
+
return 0;
}
int octep_vf_mbox_set_mac_addr(struct octep_vf_device *oct, char *mac_addr)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int i, ret;
+
+ cmd.u64 = 0;
+ cmd.s_set_mac.opcode = OCTEP_PFVF_MBOX_CMD_SET_MAC_ADDR;
+ for (i = 0; i < ETH_ALEN; i++)
+ cmd.s_set_mac.mac_addr[i] = mac_addr[i];
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Mbox send failed; err = %d\n", ret);
+ return ret;
+ }
+ if (rsp.s_set_mac.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "received NACK\n");
+ return -EINVAL;
+ }
return 0;
}
int octep_vf_mbox_get_mac_addr(struct octep_vf_device *oct, char *mac_addr)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int i, ret;
+
+ cmd.u64 = 0;
+ cmd.s_set_mac.opcode = OCTEP_PFVF_MBOX_CMD_GET_MAC_ADDR;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "get_mac: mbox send failed; err = %d\n", ret);
+ return ret;
+ }
+ if (rsp.s_set_mac.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "get_mac: received NACK\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < ETH_ALEN; i++)
+ mac_addr[i] = rsp.s_set_mac.mac_addr[i];
return 0;
}
int octep_vf_mbox_set_rx_state(struct octep_vf_device *oct, bool state)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_link_state.opcode = OCTEP_PFVF_MBOX_CMD_SET_RX_STATE;
+ cmd.s_link_state.state = state;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Set Rx state via VF Mbox send failed\n");
+ return ret;
+ }
+ if (rsp.s_link_state.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Set Rx state received NACK\n");
+ return -EINVAL;
+ }
return 0;
}
int octep_vf_mbox_set_link_status(struct octep_vf_device *oct, bool status)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_link_status.opcode = OCTEP_PFVF_MBOX_CMD_SET_LINK_STATUS;
+ cmd.s_link_status.status = status;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Set link status via VF Mbox send failed\n");
+ return ret;
+ }
+ if (rsp.s_link_status.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Set link status received NACK\n");
+ return -EINVAL;
+ }
return 0;
}
int octep_vf_mbox_get_link_status(struct octep_vf_device *oct, u8 *oper_up)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_link_status.opcode = OCTEP_PFVF_MBOX_CMD_GET_LINK_STATUS;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Get link status via VF Mbox send failed\n");
+ return ret;
+ }
+ if (rsp.s_link_status.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Get link status received NACK\n");
+ return -EINVAL;
+ }
+ *oper_up = rsp.s_link_status.status;
return 0;
}
int octep_vf_mbox_dev_remove(struct octep_vf_device *oct)
{
- return 0;
+ union octep_pfvf_mbox_word cmd;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s.opcode = OCTEP_PFVF_MBOX_CMD_DEV_REMOVE;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, NULL);
+ return ret;
}
int octep_vf_mbox_get_fw_info(struct octep_vf_device *oct)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_fw_info.opcode = OCTEP_PFVF_MBOX_CMD_GET_FW_INFO;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Get link status via VF Mbox send failed\n");
+ return ret;
+ }
+ if (rsp.s_fw_info.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Get link status received NACK\n");
+ return -EINVAL;
+ }
+ oct->fw_info.pkind = rsp.s_fw_info.pkind;
+ oct->fw_info.fsz = rsp.s_fw_info.fsz;
+ oct->fw_info.rx_ol_flags = rsp.s_fw_info.rx_ol_flags;
+ oct->fw_info.tx_ol_flags = rsp.s_fw_info.tx_ol_flags;
+
return 0;
}
int octep_vf_mbox_set_offloads(struct octep_vf_device *oct, u16 tx_offloads,
u16 rx_offloads)
{
+ union octep_pfvf_mbox_word cmd;
+ union octep_pfvf_mbox_word rsp;
+ int ret;
+
+ cmd.u64 = 0;
+ cmd.s_offloads.opcode = OCTEP_PFVF_MBOX_CMD_SET_OFFLOADS;
+ cmd.s_offloads.rx_ol_flags = rx_offloads;
+ cmd.s_offloads.tx_ol_flags = tx_offloads;
+ ret = octep_vf_mbox_send_cmd(oct, cmd, &rsp);
+ if (ret) {
+ dev_err(&oct->pdev->dev, "Set offloads via VF Mbox send failed\n");
+ return ret;
+ }
+ if (rsp.s_link_state.type != OCTEP_PFVF_MBOX_TYPE_RSP_ACK) {
+ dev_err(&oct->pdev->dev, "Set offloads received NACK\n");
+ return -EINVAL;
+ }
return 0;
}
diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.h b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.h
index 14f4fb19445b..9b5efad37eab 100644
--- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.h
+++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_mbox.h
@@ -7,10 +7,151 @@
#ifndef _OCTEP_VF_MBOX_H_
#define _OCTEP_VF_MBOX_H_
-#define OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE 256
+/* When a new command is implemented, VF Mbox version should be bumped.
+ */
+enum octep_pfvf_mbox_version {
+ OCTEP_PFVF_MBOX_VERSION_V0,
+ OCTEP_PFVF_MBOX_VERSION_V1,
+ OCTEP_PFVF_MBOX_VERSION_V2
+};
+
+#define OCTEP_PFVF_MBOX_VERSION_CURRENT OCTEP_PFVF_MBOX_VERSION_V2
+
+enum octep_pfvf_mbox_opcode {
+ OCTEP_PFVF_MBOX_CMD_VERSION,
+ OCTEP_PFVF_MBOX_CMD_SET_MTU,
+ OCTEP_PFVF_MBOX_CMD_SET_MAC_ADDR,
+ OCTEP_PFVF_MBOX_CMD_GET_MAC_ADDR,
+ OCTEP_PFVF_MBOX_CMD_GET_LINK_INFO,
+ OCTEP_PFVF_MBOX_CMD_GET_STATS,
+ OCTEP_PFVF_MBOX_CMD_SET_RX_STATE,
+ OCTEP_PFVF_MBOX_CMD_SET_LINK_STATUS,
+ OCTEP_PFVF_MBOX_CMD_GET_LINK_STATUS,
+ OCTEP_PFVF_MBOX_CMD_GET_MTU,
+ OCTEP_PFVF_MBOX_CMD_DEV_REMOVE,
+ OCTEP_PFVF_MBOX_CMD_GET_FW_INFO,
+ OCTEP_PFVF_MBOX_CMD_SET_OFFLOADS,
+ OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS,
+ OCTEP_PFVF_MBOX_CMD_MAX,
+};
+
+enum octep_pfvf_mbox_word_type {
+ OCTEP_PFVF_MBOX_TYPE_CMD,
+ OCTEP_PFVF_MBOX_TYPE_RSP_ACK,
+ OCTEP_PFVF_MBOX_TYPE_RSP_NACK,
+};
+
+enum octep_pfvf_mbox_cmd_status {
+ OCTEP_PFVF_MBOX_CMD_STATUS_NOT_SETUP = 1,
+ OCTEP_PFVF_MBOX_CMD_STATUS_TIMEDOUT = 2,
+ OCTEP_PFVF_MBOX_CMD_STATUS_NACK = 3,
+ OCTEP_PFVF_MBOX_CMD_STATUS_BUSY = 4,
+ OCTEP_PFVF_MBOX_CMD_STATUS_ERR = 5
+};
+
+enum octep_pfvf_link_status {
+ OCTEP_PFVF_LINK_STATUS_DOWN,
+ OCTEP_PFVF_LINK_STATUS_UP,
+};
+
+enum octep_pfvf_link_speed {
+ OCTEP_PFVF_LINK_SPEED_NONE,
+ OCTEP_PFVF_LINK_SPEED_1000,
+ OCTEP_PFVF_LINK_SPEED_10000,
+ OCTEP_PFVF_LINK_SPEED_25000,
+ OCTEP_PFVF_LINK_SPEED_40000,
+ OCTEP_PFVF_LINK_SPEED_50000,
+ OCTEP_PFVF_LINK_SPEED_100000,
+ OCTEP_PFVF_LINK_SPEED_LAST,
+};
+
+enum octep_pfvf_link_duplex {
+ OCTEP_PFVF_LINK_HALF_DUPLEX,
+ OCTEP_PFVF_LINK_FULL_DUPLEX,
+};
+
+enum octep_pfvf_link_autoneg {
+ OCTEP_PFVF_LINK_AUTONEG,
+ OCTEP_PFVF_LINK_FIXED,
+};
+
+#define OCTEP_PFVF_MBOX_TIMEOUT_WAIT_COUNT 8000
+#define OCTEP_PFVF_MBOX_TIMEOUT_WAIT_UDELAY 1000
+#define OCTEP_PFVF_MBOX_MAX_RETRIES 2
+#define OCTEP_PFVF_MBOX_VERSION 0
+#define OCTEP_PFVF_MBOX_MAX_DATA_SIZE 6
+#define OCTEP_PFVF_MBOX_MAX_DATA_BUF_SIZE 320
+#define OCTEP_PFVF_MBOX_MORE_FRAG_FLAG 1
+
+union octep_pfvf_mbox_word {
+ u64 u64;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 rsvd:6;
+ u64 data:48;
+ } s;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 frag:1;
+ u64 rsvd:5;
+ u8 data[6];
+ } s_data;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 rsvd:6;
+ u64 version:48;
+ } s_version;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 rsvd:6;
+ u8 mac_addr[6];
+ } s_set_mac;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 rsvd:6;
+ u64 mtu:48;
+ } s_set_mtu;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 state:1;
+ u64 rsvd:53;
+ } s_link_state;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 status:1;
+ u64 rsvd:53;
+ } s_link_status;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 pkind:8;
+ u64 fsz:8;
+ u64 rx_ol_flags:16;
+ u64 tx_ol_flags:16;
+ u64 rsvd:6;
+ } s_fw_info;
+ struct {
+ u64 opcode:8;
+ u64 type:2;
+ u64 rsvd:22;
+ u64 rx_ol_flags:16;
+ u64 tx_ol_flags:16;
+ } s_offloads;
+} __packed;
int octep_vf_setup_mbox(struct octep_vf_device *oct);
void octep_vf_delete_mbox(struct octep_vf_device *oct);
+int octep_vf_mbox_send_cmd(struct octep_vf_device *oct, union octep_pfvf_mbox_word cmd,
+ union octep_pfvf_mbox_word *rsp);
+int octep_vf_mbox_bulk_read(struct octep_vf_device *oct, enum octep_pfvf_mbox_opcode opcode,
+ u8 *data, int *size);
int octep_vf_mbox_set_mtu(struct octep_vf_device *oct, int mtu);
int octep_vf_mbox_set_mac_addr(struct octep_vf_device *oct, char *mac_addr);
int octep_vf_mbox_get_mac_addr(struct octep_vf_device *oct, char *mac_addr);
--
2.25.1
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