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Message-ID: <DM6PR11MB46100B28695ABBC30409A27BF3432@DM6PR11MB4610.namprd11.prod.outlook.com>
Date: Mon, 21 Oct 2024 09:01:47 +0000
From: "Kwapulinski, Piotr" <piotr.kwapulinski@...el.com>
To: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@...adcom.com>
CC: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>, "Wegrzyn, Stefan"
<stefan.wegrzyn@...el.com>, "Jagielski, Jedrzej"
<jedrzej.jagielski@...el.com>, "Glaza, Jan" <jan.glaza@...el.com>
Subject: RE: [PATCH iwl-next v9 3/7] ixgbe: Add link management support for
E610 device
>-----Original Message-----
>From: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@...adcom.com>
>Sent: Thursday, October 17, 2024 3:27 PM
>To: Kwapulinski, Piotr <piotr.kwapulinski@...el.com>
>Cc: intel-wired-lan@...ts.osuosl.org; netdev@...r.kernel.org; Wegrzyn, Stefan <stefan.wegrzyn@...el.com>; Jagielski, Jedrzej <jedrzej.jagielski@...el.com>; Glaza, Jan <jan.glaza@...el.com>
>Subject: Re: [PATCH iwl-next v9 3/7] ixgbe: Add link management support for E610 device
>
>On Thu, Oct 3, 2024 at 7:49 PM Piotr Kwapulinski
><piotr.kwapulinski@...el.com> wrote:
>>
>> Add low level link management support for E610 device. Link management
>> operations are handled via the Admin Command Interface. Add the following
>> link management operations:
>> - get link capabilities
>> - set up link
>> - get media type
>> - get link status, link status events
>> - link power management
>>
>> Co-developed-by: Stefan Wegrzyn <stefan.wegrzyn@...el.com>
>> Signed-off-by: Stefan Wegrzyn <stefan.wegrzyn@...el.com>
>> Co-developed-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
>> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
>> Reviewed-by: Jan Glaza <jan.glaza@...el.com>
>> Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@...el.com>
>> ---
>> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c | 1091 +++++++++++++++++
>> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h | 32 +
>> .../ethernet/intel/ixgbe/ixgbe_type_e610.h | 1 +
>> 3 files changed, 1124 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
>> index 3bc88df..c0c740f 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
>> @@ -1033,3 +1033,1094 @@ void ixgbe_copy_phy_caps_to_cfg(struct ixgbe_aci_cmd_get_phy_caps_data *caps,
>> cfg->module_compliance_enforcement =
>> caps->module_compliance_enforcement;
>> }
>> +
>> +/**
>> + * ixgbe_aci_set_phy_cfg - set PHY configuration
>> + * @hw: pointer to the HW struct
>> + * @cfg: structure with PHY configuration data to be set
>> + *
>> + * Set the various PHY configuration parameters supported on the Port
>> + * using ACI command (0x0601).
>> + * One or more of the Set PHY config parameters may be ignored in an MFP
>> + * mode as the PF may not have the privilege to set some of the PHY Config
>> + * parameters.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_aci_set_phy_cfg(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_set_phy_cfg_data *cfg)
>> +{
>> + struct ixgbe_aci_desc desc;
>> + int err;
>> +
>> + if (!cfg)
>> + return -EINVAL;
>> +
>> + /* Ensure that only valid bits of cfg->caps can be turned on. */
>> + cfg->caps &= IXGBE_ACI_PHY_ENA_VALID_MASK;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_set_phy_cfg);
>> + desc.params.set_phy.lport_num = hw->bus.func;
>> + desc.flags |= IXGBE_ACI_FLAG_RD;
>> +
>> + err = ixgbe_aci_send_cmd(hw, &desc, cfg, sizeof(*cfg));
>> +
>[Kalesh] There is no need of an empty line here
Will do
>> + if (!err)
>> + hw->phy.curr_user_phy_cfg = *cfg;
>> +
>> + return err;
>> +}
>> +
>> +/**
>> + * ixgbe_aci_set_link_restart_an - set up link and restart AN
>> + * @hw: pointer to the HW struct
>> + * @ena_link: if true: enable link, if false: disable link
>> + *
>> + * Function sets up the link and restarts the Auto-Negotiation over the link.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_aci_set_link_restart_an(struct ixgbe_hw *hw, bool ena_link)
>> +{
>> + struct ixgbe_aci_cmd_restart_an *cmd;
>> + struct ixgbe_aci_desc desc;
>> +
>> + cmd = &desc.params.restart_an;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_restart_an);
>> +
>> + cmd->cmd_flags = IXGBE_ACI_RESTART_AN_LINK_RESTART;
>> + cmd->lport_num = hw->bus.func;
>> + if (ena_link)
>> + cmd->cmd_flags |= IXGBE_ACI_RESTART_AN_LINK_ENABLE;
>> + else
>> + cmd->cmd_flags &= ~IXGBE_ACI_RESTART_AN_LINK_ENABLE;
>> +
>> + return ixgbe_aci_send_cmd(hw, &desc, NULL, 0);
>> +}
>> +
>> +/**
>> + * ixgbe_is_media_cage_present - check if media cage is present
>> + * @hw: pointer to the HW struct
>> + *
>> + * Identify presence of media cage using the ACI command (0x06E0).
>> + *
>> + * Return: true if media cage is present, else false. If no cage, then
>> + * media type is backplane or BASE-T.
>> + */
>> +static bool ixgbe_is_media_cage_present(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_link_topo *cmd;
>> + struct ixgbe_aci_desc desc;
>> +
>> + cmd = &desc.params.get_link_topo;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_get_link_topo);
>> +
>> + cmd->addr.topo_params.node_type_ctx =
>> + FIELD_PREP(IXGBE_ACI_LINK_TOPO_NODE_CTX_M,
>> + IXGBE_ACI_LINK_TOPO_NODE_CTX_PORT);
>> +
>> + /* Set node type. */
>> + cmd->addr.topo_params.node_type_ctx |=
>> + FIELD_PREP(IXGBE_ACI_LINK_TOPO_NODE_TYPE_M,
>> + IXGBE_ACI_LINK_TOPO_NODE_TYPE_CAGE);
>> +
>> + /* Node type cage can be used to determine if cage is present. If AQC
>> + * returns error (ENOENT), then no cage present. If no cage present then
>> + * connection type is backplane or BASE-T.
>> + */
>> + return ixgbe_aci_get_netlist_node(hw, cmd, NULL, NULL);
>> +}
>> +
>> +/**
>> + * ixgbe_get_media_type_from_phy_type - Gets media type based on phy type
>> + * @hw: pointer to the HW struct
>> + *
>> + * Try to identify the media type based on the phy type.
>> + * If more than one media type, the ixgbe_media_type_unknown is returned.
>> + * First, phy_type_low is checked, then phy_type_high.
>> + * If none are identified, the ixgbe_media_type_unknown is returned
>> + *
>> + * Return: type of a media based on phy type in form of enum.
>> + */
>> +static enum ixgbe_media_type
>> +ixgbe_get_media_type_from_phy_type(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_link_status *hw_link_info;
>> +
>> + if (!hw)
>> + return ixgbe_media_type_unknown;
>> +
>> + hw_link_info = &hw->link.link_info;
>> + if (hw_link_info->phy_type_low && hw_link_info->phy_type_high)
>> + /* If more than one media type is selected, report unknown */
>> + return ixgbe_media_type_unknown;
>> +
>> + if (hw_link_info->phy_type_low) {
>> + /* 1G SGMII is a special case where some DA cable PHYs
>> + * may show this as an option when it really shouldn't
>> + * be since SGMII is meant to be between a MAC and a PHY
>> + * in a backplane. Try to detect this case and handle it
>> + */
>> + if (hw_link_info->phy_type_low == IXGBE_PHY_TYPE_LOW_1G_SGMII &&
>> + (hw_link_info->module_type[IXGBE_ACI_MOD_TYPE_IDENT] ==
>> + IXGBE_ACI_MOD_TYPE_BYTE1_SFP_PLUS_CU_ACTIVE ||
>> + hw_link_info->module_type[IXGBE_ACI_MOD_TYPE_IDENT] ==
>> + IXGBE_ACI_MOD_TYPE_BYTE1_SFP_PLUS_CU_PASSIVE))
>> + return ixgbe_media_type_da;
>> +
>> + switch (hw_link_info->phy_type_low) {
>> + case IXGBE_PHY_TYPE_LOW_1000BASE_SX:
>> + case IXGBE_PHY_TYPE_LOW_1000BASE_LX:
>> + case IXGBE_PHY_TYPE_LOW_10GBASE_SR:
>> + case IXGBE_PHY_TYPE_LOW_10GBASE_LR:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_SR:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_LR:
>> + return ixgbe_media_type_fiber;
>> + case IXGBE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
>> + case IXGBE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
>> + return ixgbe_media_type_fiber;
>> + case IXGBE_PHY_TYPE_LOW_100BASE_TX:
>> + case IXGBE_PHY_TYPE_LOW_1000BASE_T:
>> + case IXGBE_PHY_TYPE_LOW_2500BASE_T:
>> + case IXGBE_PHY_TYPE_LOW_5GBASE_T:
>> + case IXGBE_PHY_TYPE_LOW_10GBASE_T:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_T:
>> + return ixgbe_media_type_copper;
>> + case IXGBE_PHY_TYPE_LOW_10G_SFI_DA:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_CR:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_CR_S:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_CR1:
>> + return ixgbe_media_type_da;
>> + case IXGBE_PHY_TYPE_LOW_25G_AUI_C2C:
>> + if (ixgbe_is_media_cage_present(hw))
>> + return ixgbe_media_type_aui;
>> + fallthrough;
>> + case IXGBE_PHY_TYPE_LOW_1000BASE_KX:
>> + case IXGBE_PHY_TYPE_LOW_2500BASE_KX:
>> + case IXGBE_PHY_TYPE_LOW_2500BASE_X:
>> + case IXGBE_PHY_TYPE_LOW_5GBASE_KR:
>> + case IXGBE_PHY_TYPE_LOW_10GBASE_KR_CR1:
>> + case IXGBE_PHY_TYPE_LOW_10G_SFI_C2C:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_KR:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_KR1:
>> + case IXGBE_PHY_TYPE_LOW_25GBASE_KR_S:
>> + return ixgbe_media_type_backplane;
>> + }
>> + } else {
>> + switch (hw_link_info->phy_type_high) {
>> + case IXGBE_PHY_TYPE_HIGH_10BASE_T:
>> + return ixgbe_media_type_copper;
>> + }
>> + }
>> + return ixgbe_media_type_unknown;
>> +}
>> +
>> +/**
>> + * ixgbe_update_link_info - update status of the HW network link
>> + * @hw: pointer to the HW struct
>> + *
>> + * Update the status of the HW network link.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_update_link_info(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_link_status *li;
>> + int err;
>> +
>> + if (!hw)
>> + return -EINVAL;
>> +
>> + li = &hw->link.link_info;
>> +
>> + err = ixgbe_aci_get_link_info(hw, true, NULL);
>> + if (err)
>> + return err;
>> +
>> + if (li->link_info & IXGBE_ACI_MEDIA_AVAILABLE) {
>[Kalesh] If you change the check as below, that would help code indentation:
Will do.
>if (!(li->link_info & IXGBE_ACI_MEDIA_AVAILABLE))
> return 0;
>> + struct ixgbe_aci_cmd_get_phy_caps_data __free(kfree) *pcaps;
>> +
>> + pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
>> + if (!pcaps)
>> + return -ENOMEM;
>> +
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_TOPO_CAP_MEDIA,
>> + pcaps);
>> +
>> + if (!err)
>> + memcpy(li->module_type, &pcaps->module_type,
>> + sizeof(li->module_type));
>> + }
>> +
>> + return err;
>> +}
>> +
>> +/**
>> + * ixgbe_get_link_status - get status of the HW network link
>> + * @hw: pointer to the HW struct
>> + * @link_up: pointer to bool (true/false = linkup/linkdown)
>> + *
>> + * Variable link_up is true if link is up, false if link is down.
>> + * The variable link_up is invalid if status is non zero. As a
>> + * result of this call, link status reporting becomes enabled
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_get_link_status(struct ixgbe_hw *hw, bool *link_up)
>> +{
>> + if (!hw || !link_up)
>> + return -EINVAL;
>> +
>> + if (hw->link.get_link_info) {
>> + int err = ixgbe_update_link_info(hw);
>> +
>> + if (err)
>> + return err;
>> + }
>> +
>> + *link_up = hw->link.link_info.link_info & IXGBE_ACI_LINK_UP;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_aci_get_link_info - get the link status
>> + * @hw: pointer to the HW struct
>> + * @ena_lse: enable/disable LinkStatusEvent reporting
>> + * @link: pointer to link status structure - optional
>> + *
>> + * Get the current Link Status using ACI command (0x607).
>> + * The current link can be optionally provided to update
>> + * the status.
>> + *
>> + * Return: the link status of the adapter.
>> + */
>> +int ixgbe_aci_get_link_info(struct ixgbe_hw *hw, bool ena_lse,
>> + struct ixgbe_link_status *link)
>> +{
>> + struct ixgbe_aci_cmd_get_link_status_data link_data = { 0 };
>> + struct ixgbe_aci_cmd_get_link_status *resp;
>> + struct ixgbe_link_status *li_old, *li;
>> + struct ixgbe_fc_info *hw_fc_info;
>> + struct ixgbe_aci_desc desc;
>> + bool tx_pause, rx_pause;
>> + u8 cmd_flags;
>> + int err;
>> +
>> + if (!hw)
>> + return -EINVAL;
>> +
>> + li_old = &hw->link.link_info_old;
>> + li = &hw->link.link_info;
>> + hw_fc_info = &hw->fc;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_get_link_status);
>> + cmd_flags = (ena_lse) ? IXGBE_ACI_LSE_ENA : IXGBE_ACI_LSE_DIS;
>> + resp = &desc.params.get_link_status;
>> + resp->cmd_flags = cmd_flags;
>> + resp->lport_num = hw->bus.func;
>> +
>> + err = ixgbe_aci_send_cmd(hw, &desc, &link_data, sizeof(link_data));
>> +
>[Kalesh] there is no need of empty line here
Will do.
>> + if (err)
>> + return err;
>> +
>> + /* Save off old link status information. */
>> + *li_old = *li;
>> +
>> + /* Update current link status information. */
>> + li->link_speed = link_data.link_speed;
>> + li->phy_type_low = link_data.phy_type_low;
>> + li->phy_type_high = link_data.phy_type_high;
>> + li->link_info = link_data.link_info;
>> + li->link_cfg_err = link_data.link_cfg_err;
>> + li->an_info = link_data.an_info;
>> + li->ext_info = link_data.ext_info;
>> + li->max_frame_size = link_data.max_frame_size;
>> + li->fec_info = link_data.cfg & IXGBE_ACI_FEC_MASK;
>> + li->topo_media_conflict = link_data.topo_media_conflict;
>> + li->pacing = link_data.cfg & (IXGBE_ACI_CFG_PACING_M |
>> + IXGBE_ACI_CFG_PACING_TYPE_M);
>> +
>> + /* Update fc info. */
>> + tx_pause = !!(link_data.an_info & IXGBE_ACI_LINK_PAUSE_TX);
>> + rx_pause = !!(link_data.an_info & IXGBE_ACI_LINK_PAUSE_RX);
>> + if (tx_pause && rx_pause)
>> + hw_fc_info->current_mode = ixgbe_fc_full;
>> + else if (tx_pause)
>> + hw_fc_info->current_mode = ixgbe_fc_tx_pause;
>> + else if (rx_pause)
>> + hw_fc_info->current_mode = ixgbe_fc_rx_pause;
>> + else
>> + hw_fc_info->current_mode = ixgbe_fc_none;
>> +
>> + li->lse_ena = !!(resp->cmd_flags & IXGBE_ACI_LSE_IS_ENABLED);
>> +
>> + /* Save link status information. */
>> + if (link)
>> + *link = *li;
>> +
>> + /* Flag cleared so calling functions don't call AQ again. */
>> + hw->link.get_link_info = false;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_aci_set_event_mask - set event mask
>> + * @hw: pointer to the HW struct
>> + * @port_num: port number of the physical function
>> + * @mask: event mask to be set
>> + *
>> + * Set the event mask using ACI command (0x0613).
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_aci_set_event_mask(struct ixgbe_hw *hw, u8 port_num, u16 mask)
>> +{
>> + struct ixgbe_aci_cmd_set_event_mask *cmd;
>> + struct ixgbe_aci_desc desc;
>> +
>> + cmd = &desc.params.set_event_mask;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_set_event_mask);
>> +
>> + cmd->lport_num = port_num;
>> +
>> + cmd->event_mask = mask;
>> + return ixgbe_aci_send_cmd(hw, &desc, NULL, 0);
>> +}
>> +
>> +/**
>> + * ixgbe_configure_lse - enable/disable link status events
>> + * @hw: pointer to the HW struct
>> + * @activate: true for enable lse, false otherwise
>> + * @mask: event mask to be set; a set bit means deactivation of the
>> + * corresponding event
>> + *
>> + * Set the event mask and then enable or disable link status events
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_configure_lse(struct ixgbe_hw *hw, bool activate, u16 mask)
>> +{
>> + int err;
>> +
>> + err = ixgbe_aci_set_event_mask(hw, (u8)hw->bus.func, mask);
>> + if (err)
>> + return err;
>> +
>> + /* Enabling link status events generation by fw */
>> + err = ixgbe_aci_get_link_info(hw, activate, NULL);
>[Kalesh] You can simplify this as:
>return ixgbe_aci_get_link_info(hw, activate, NULL);
Will do.
>> + if (err)
>> + return err;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_get_media_type_e610 - Gets media type
>> + * @hw: pointer to the HW struct
>> + *
>> + * In order to get the media type, the function gets PHY
>> + * capabilities and later on use them to identify the PHY type
>> + * checking phy_type_high and phy_type_low.
>> + *
>> + * Return: the type of media in form of ixgbe_media_type enum
>> + * or ixgbe_media_type_unknown in case of an error.
>> + */
>> +enum ixgbe_media_type ixgbe_get_media_type_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data pcaps;
>> + int rc;
>> +
>> + rc = ixgbe_update_link_info(hw);
>> + if (rc)
>> + return ixgbe_media_type_unknown;
>> +
>> + /* If there is no link but PHY (dongle) is available SW should use
>> + * Get PHY Caps admin command instead of Get Link Status, find most
>> + * significant bit that is set in PHY types reported by the command
>> + * and use it to discover media type.
>> + */
>> + if (!(hw->link.link_info.link_info & IXGBE_ACI_LINK_UP) &&
>> + (hw->link.link_info.link_info & IXGBE_ACI_MEDIA_AVAILABLE)) {
>> + int highest_bit;
>> +
>> + /* Get PHY Capabilities */
>> + rc = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_TOPO_CAP_MEDIA,
>> + &pcaps);
>> + if (rc)
>> + return ixgbe_media_type_unknown;
>> +
>> + highest_bit = fls64(pcaps.phy_type_high);
>> + if (highest_bit) {
>> + hw->link.link_info.phy_type_high =
>> + BIT_ULL(highest_bit - 1);
>> + hw->link.link_info.phy_type_low = 0;
>> + } else {
>> + highest_bit = fls64(pcaps.phy_type_low);
>> + if (highest_bit)
>> + hw->link.link_info.phy_type_low =
>> + BIT_ULL(highest_bit - 1);
>> + }
>> + }
>> +
>> + /* Based on link status or search above try to discover media type. */
>> + hw->phy.media_type = ixgbe_get_media_type_from_phy_type(hw);
>> +
>> + return hw->phy.media_type;
>> +}
>> +
>> +/**
>> + * ixgbe_setup_link_e610 - Set up link
>> + * @hw: pointer to hardware structure
>> + * @speed: new link speed
>> + * @autoneg_wait: true when waiting for completion is needed
>> + *
>> + * Set up the link with the specified speed.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_setup_link_e610(struct ixgbe_hw *hw, ixgbe_link_speed speed,
>> + bool autoneg_wait)
>> +{
>> + /* Simply request FW to perform proper PHY setup */
>> + return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
>> +}
>> +
>> +/**
>> + * ixgbe_check_link_e610 - Determine link and speed status
>> + * @hw: pointer to hardware structure
>> + * @speed: pointer to link speed
>> + * @link_up: true when link is up
>> + * @link_up_wait_to_complete: bool used to wait for link up or not
>> + *
>> + * Determine if the link is up and the current link speed
>> + * using ACI command (0x0607).
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_check_link_e610(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
>> + bool *link_up, bool link_up_wait_to_complete)
>> +{
>> + int err;
>> + u32 i;
>> +
>> + if (!speed || !link_up)
>> + return -EINVAL;
>> +
>> + /* Set get_link_info flag to ensure that fresh
>> + * link information will be obtained from FW
>> + * by sending Get Link Status admin command.
>> + */
>> + hw->link.get_link_info = true;
>> +
>> + /* Update link information in adapter context. */
>> + err = ixgbe_get_link_status(hw, link_up);
>> + if (err)
>> + return err;
>> +
>> + /* Wait for link up if it was requested. */
>> + if (link_up_wait_to_complete && !(*link_up)) {
>> + for (i = 0; i < hw->mac.max_link_up_time; i++) {
>> + msleep(100);
>> + hw->link.get_link_info = true;
>> + err = ixgbe_get_link_status(hw, link_up);
>> + if (err)
>> + return err;
>> + if (*link_up)
>> + break;
>> + }
>> + }
>> +
>> + /* Use link information in adapter context updated by the call
>> + * to ixgbe_get_link_status() to determine current link speed.
>> + * Link speed information is valid only when link up was
>> + * reported by FW.
>> + */
>> + if (*link_up) {
>> + switch (hw->link.link_info.link_speed) {
>> + case IXGBE_ACI_LINK_SPEED_10MB:
>> + *speed = IXGBE_LINK_SPEED_10_FULL;
>> + break;
>> + case IXGBE_ACI_LINK_SPEED_100MB:
>> + *speed = IXGBE_LINK_SPEED_100_FULL;
>> + break;
>> + case IXGBE_ACI_LINK_SPEED_1000MB:
>> + *speed = IXGBE_LINK_SPEED_1GB_FULL;
>> + break;
>> + case IXGBE_ACI_LINK_SPEED_2500MB:
>> + *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
>> + break;
>> + case IXGBE_ACI_LINK_SPEED_5GB:
>> + *speed = IXGBE_LINK_SPEED_5GB_FULL;
>> + break;
>> + case IXGBE_ACI_LINK_SPEED_10GB:
>> + *speed = IXGBE_LINK_SPEED_10GB_FULL;
>> + break;
>> + default:
>> + *speed = IXGBE_LINK_SPEED_UNKNOWN;
>> + break;
>> + }
>> + } else {
>> + *speed = IXGBE_LINK_SPEED_UNKNOWN;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_get_link_capabilities_e610 - Determine link capabilities
>> + * @hw: pointer to hardware structure
>> + * @speed: pointer to link speed
>> + * @autoneg: true when autoneg or autotry is enabled
>> + *
>> + * Determine speed and AN parameters of a link.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_get_link_capabilities_e610(struct ixgbe_hw *hw,
>> + ixgbe_link_speed *speed,
>> + bool *autoneg)
>> +{
>> + if (!speed || !autoneg)
>> + return -EINVAL;
>> +
>> + *autoneg = true;
>> + *speed = hw->phy.speeds_supported;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_cfg_phy_fc - Configure PHY Flow Control (FC) data based on FC mode
>> + * @hw: pointer to hardware structure
>> + * @cfg: PHY configuration data to set FC mode
>> + * @req_mode: FC mode to configure
>> + *
>> + * Configures PHY Flow Control according to the provided configuration.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_cfg_phy_fc(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_set_phy_cfg_data *cfg,
>> + enum ixgbe_fc_mode req_mode)
>> +{
>> + u8 pause_mask = 0x0;
>> +
>> + if (!cfg)
>> + return -EINVAL;
>> +
>> + switch (req_mode) {
>> + case ixgbe_fc_full:
>> + pause_mask |= IXGBE_ACI_PHY_EN_TX_LINK_PAUSE;
>> + pause_mask |= IXGBE_ACI_PHY_EN_RX_LINK_PAUSE;
>> + break;
>> + case ixgbe_fc_rx_pause:
>> + pause_mask |= IXGBE_ACI_PHY_EN_RX_LINK_PAUSE;
>> + break;
>> + case ixgbe_fc_tx_pause:
>> + pause_mask |= IXGBE_ACI_PHY_EN_TX_LINK_PAUSE;
>> + break;
>> + default:
>> + break;
>> + }
>> +
>> + /* Clear the old pause settings. */
>> + cfg->caps &= ~(IXGBE_ACI_PHY_EN_TX_LINK_PAUSE |
>> + IXGBE_ACI_PHY_EN_RX_LINK_PAUSE);
>> +
>> + /* Set the new capabilities. */
>> + cfg->caps |= pause_mask;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_setup_fc_e610 - Set up flow control
>> + * @hw: pointer to hardware structure
>> + *
>> + * Set up flow control. This has to be done during init time.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_setup_fc_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data pcaps = { 0 };
>> + struct ixgbe_aci_cmd_set_phy_cfg_data cfg = { 0 };
>> + int err;
>> +
>> + /* Get the current PHY config */
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_ACTIVE_CFG, &pcaps);
>> + if (err)
>> + return err;
>> +
>> + ixgbe_copy_phy_caps_to_cfg(&pcaps, &cfg);
>> +
>> + /* Configure the set PHY data */
>> + err = ixgbe_cfg_phy_fc(hw, &cfg, hw->fc.requested_mode);
>> + if (err)
>> + return err;
>> +
>> + /* If the capabilities have changed, then set the new config */
>> + if (cfg.caps != pcaps.caps) {
>> + cfg.caps |= IXGBE_ACI_PHY_ENA_AUTO_LINK_UPDT;
>> +
>> + err = ixgbe_aci_set_phy_cfg(hw, &cfg);
>> + if (err)
>> + return err;
>> + }
>> +
>> + return err;
>> +}
>> +
>> +/**
>> + * ixgbe_fc_autoneg_e610 - Configure flow control
>> + * @hw: pointer to hardware structure
>> + *
>> + * Configure Flow Control.
>> + */
>> +void ixgbe_fc_autoneg_e610(struct ixgbe_hw *hw)
>> +{
>> + int err;
>> +
>> + /* Get current link err.
>> + * Current FC mode will be stored in the hw context.
>> + */
>> + err = ixgbe_aci_get_link_info(hw, false, NULL);
>> + if (err)
>> + goto no_autoneg;
>> +
>> + /* Check if the link is up */
>> + if (!(hw->link.link_info.link_info & IXGBE_ACI_LINK_UP))
>> + goto no_autoneg;
>> +
>> + /* Check if auto-negotiation has completed */
>> + if (!(hw->link.link_info.an_info & IXGBE_ACI_AN_COMPLETED))
>> + goto no_autoneg;
>> +
>> + hw->fc.fc_was_autonegged = true;
>> + return;
>> +
>> +no_autoneg:
>> + hw->fc.fc_was_autonegged = false;
>> + hw->fc.current_mode = hw->fc.requested_mode;
>> +}
>> +
>> +/**
>> + * ixgbe_disable_rx_e610 - Disable RX unit
>> + * @hw: pointer to hardware structure
>> + *
>> + * Disable RX DMA unit on E610 with use of ACI command (0x000C).
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +void ixgbe_disable_rx_e610(struct ixgbe_hw *hw)
>> +{
>> + u32 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
>> + u32 pfdtxgswc;
>> + int err;
>> +
>> + if (!(rxctrl & IXGBE_RXCTRL_RXEN))
>> + return;
>> +
>> + pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
>> + if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
>> + pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
>> + IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
>> + hw->mac.set_lben = true;
>> + } else {
>> + hw->mac.set_lben = false;
>> + }
>> +
>> + err = ixgbe_aci_disable_rxen(hw);
>> +
>> + /* If we fail - disable RX using register write */
>> + if (err) {
>> + rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
>> + if (rxctrl & IXGBE_RXCTRL_RXEN) {
>> + rxctrl &= ~IXGBE_RXCTRL_RXEN;
>> + IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
>> + }
>> + }
>> +}
>> +
>> +/**
>> + * ixgbe_init_phy_ops_e610 - PHY specific init
>> + * @hw: pointer to hardware structure
>> + *
>> + * Initialize any function pointers that were not able to be
>> + * set during init_shared_code because the PHY type was not known.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_init_phy_ops_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_mac_info *mac = &hw->mac;
>> + struct ixgbe_phy_info *phy = &hw->phy;
>> + int ret_val;
>> +
>> + if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper)
>> + phy->ops.set_phy_power = ixgbe_set_phy_power_e610;
>> + else
>> + phy->ops.set_phy_power = NULL;
>> +
>> + /* Identify the PHY */
>> + ret_val = phy->ops.identify(hw);
>[Kalesh] You can change it to:
>return phy->ops.identify(hw);
Will do.
>> + if (ret_val)
>> + return ret_val;
>> +
>> + return ret_val;
>> +}
>> +
>> +/**
>> + * ixgbe_identify_phy_e610 - Identify PHY
>> + * @hw: pointer to hardware structure
>> + *
>> + * Determine PHY type, supported speeds and PHY ID.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_identify_phy_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data pcaps;
>> + int err;
>> +
>> + /* Set PHY type */
>> + hw->phy.type = ixgbe_phy_fw;
>> +
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_TOPO_CAP_MEDIA, &pcaps);
>> + if (err)
>> + return err;
>> +
>> + if (!(pcaps.module_compliance_enforcement &
>> + IXGBE_ACI_MOD_ENFORCE_STRICT_MODE)) {
>> + /* Handle lenient mode */
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_TOPO_CAP_NO_MEDIA,
>> + &pcaps);
>> + if (err)
>> + return err;
>> + }
>> +
>> + /* Determine supported speeds */
>> + hw->phy.speeds_supported = IXGBE_LINK_SPEED_UNKNOWN;
>> +
>> + if (pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_10BASE_T ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_10M_SGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_10_FULL;
>> + if (pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_100BASE_TX ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_100M_SGMII ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_100M_USXGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_100_FULL;
>> + if (pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_1000BASE_T ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_1000BASE_SX ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_1000BASE_LX ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_1000BASE_KX ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_1G_SGMII ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_1G_USXGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_1GB_FULL;
>> + if (pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10GBASE_T ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10G_SFI_DA ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10GBASE_SR ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10GBASE_LR ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_10G_SFI_C2C ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_10G_USXGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_10GB_FULL;
>> +
>> + /* 2.5 and 5 Gbps link speeds must be excluded from the
>> + * auto-negotiation set used during driver initialization due to
>> + * compatibility issues with certain switches. Those issues do not
>> + * exist in case of E610 2.5G SKU device (0x57b1).
>> + */
>> + if (!hw->phy.autoneg_advertised &&
>> + hw->device_id != IXGBE_DEV_ID_E610_2_5G_T)
>> + hw->phy.autoneg_advertised = hw->phy.speeds_supported;//PK
>> +
>> + if (pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_2500BASE_T ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_2500BASE_X ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_2500BASE_KX ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_2500M_SGMII ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_2500M_USXGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_2_5GB_FULL;
>> +
>> + if (!hw->phy.autoneg_advertised &&
>> + hw->device_id == IXGBE_DEV_ID_E610_2_5G_T)
>> + hw->phy.autoneg_advertised = hw->phy.speeds_supported;//PK
>> +
>> + if (pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_5GBASE_T ||
>> + pcaps.phy_type_low & IXGBE_PHY_TYPE_LOW_5GBASE_KR ||
>> + pcaps.phy_type_high & IXGBE_PHY_TYPE_HIGH_5G_USXGMII)
>> + hw->phy.speeds_supported |= IXGBE_LINK_SPEED_5GB_FULL;
>> +
>> + /* Set PHY ID */
>> + memcpy(&hw->phy.id, pcaps.phy_id_oui, sizeof(u32));
>> +
>> + hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_10_FULL |
>> + IXGBE_LINK_SPEED_100_FULL |
>> + IXGBE_LINK_SPEED_1GB_FULL;
>> + hw->phy.eee_speeds_advertised = hw->phy.eee_speeds_supported;
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_identify_module_e610 - Identify SFP module type
>> + * @hw: pointer to hardware structure
>> + *
>> + * Identify the SFP module type.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_identify_module_e610(struct ixgbe_hw *hw)
>> +{
>> + bool media_available;
>> + u8 module_type;
>> + int err;
>> +
>> + err = ixgbe_update_link_info(hw);
>> + if (err)
>> + return err;
>> +
>> + media_available =
>> + (hw->link.link_info.link_info & IXGBE_ACI_MEDIA_AVAILABLE);
>> +
>> + if (media_available) {
>> + hw->phy.sfp_type = ixgbe_sfp_type_unknown;
>> +
>> + /* Get module type from hw context updated by
>> + * ixgbe_update_link_info()
>> + */
>> + module_type = hw->link.link_info.module_type[IXGBE_ACI_MOD_TYPE_IDENT];
>> +
>> + if ((module_type & IXGBE_ACI_MOD_TYPE_BYTE1_SFP_PLUS_CU_PASSIVE) ||
>> + (module_type & IXGBE_ACI_MOD_TYPE_BYTE1_SFP_PLUS_CU_ACTIVE)) {
>> + hw->phy.sfp_type = ixgbe_sfp_type_da_cu;
>> + } else if (module_type & IXGBE_ACI_MOD_TYPE_BYTE1_10G_BASE_SR) {
>> + hw->phy.sfp_type = ixgbe_sfp_type_sr;
>> + } else if ((module_type & IXGBE_ACI_MOD_TYPE_BYTE1_10G_BASE_LR) ||
>> + (module_type & IXGBE_ACI_MOD_TYPE_BYTE1_10G_BASE_LRM)) {
>> + hw->phy.sfp_type = ixgbe_sfp_type_lr;
>> + }
>> + } else {
>> + hw->phy.sfp_type = ixgbe_sfp_type_not_present;
>> + return -ENOENT;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_setup_phy_link_e610 - Sets up firmware-controlled PHYs
>> + * @hw: pointer to hardware structure
>> + *
>> + * Set the parameters for the firmware-controlled PHYs.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_setup_phy_link_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data pcaps;
>> + struct ixgbe_aci_cmd_set_phy_cfg_data pcfg;
>> + u8 rmode = IXGBE_ACI_REPORT_TOPO_CAP_MEDIA;
>> + u64 sup_phy_type_low, sup_phy_type_high;
>> + int err;
>> +
>> + err = ixgbe_aci_get_link_info(hw, false, NULL);
>> + if (err)
>> + return err;
>> +
>> + /* If media is not available get default config. */
>> + if (!(hw->link.link_info.link_info & IXGBE_ACI_MEDIA_AVAILABLE))
>> + rmode = IXGBE_ACI_REPORT_DFLT_CFG;
>> +
>> + err = ixgbe_aci_get_phy_caps(hw, false, rmode, &pcaps);
>> + if (err)
>> + return err;
>> +
>> + sup_phy_type_low = pcaps.phy_type_low;
>> + sup_phy_type_high = pcaps.phy_type_high;
>> +
>> + /* Get Active configuration to avoid unintended changes. */
>> + err = ixgbe_aci_get_phy_caps(hw, false, IXGBE_ACI_REPORT_ACTIVE_CFG,
>> + &pcaps);
>> + if (err)
>> + return err;
>> +
>> + ixgbe_copy_phy_caps_to_cfg(&pcaps, &pcfg);
>> +
>> + /* Set default PHY types for a given speed */
>> + pcfg.phy_type_low = 0;
>> + pcfg.phy_type_high = 0;
>> +
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10_FULL) {
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_10BASE_T;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_10M_SGMII;
>> + }
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL) {
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_100BASE_TX;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_100M_SGMII;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_100M_USXGMII;
>> + }
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) {
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_1000BASE_T;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_1000BASE_SX;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_1000BASE_LX;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_1000BASE_KX;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_1G_SGMII;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_1G_USXGMII;
>> + }
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL) {
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_2500BASE_T;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_2500BASE_X;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_2500BASE_KX;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_2500M_SGMII;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_2500M_USXGMII;
>> + }
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_5GB_FULL) {
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_5GBASE_T;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_5GBASE_KR;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_5G_USXGMII;
>> + }
>> + if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL) {
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10GBASE_T;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10G_SFI_DA;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10GBASE_SR;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10GBASE_LR;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10GBASE_KR_CR1;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10G_SFI_AOC_ACC;
>> + pcfg.phy_type_low |= IXGBE_PHY_TYPE_LOW_10G_SFI_C2C;
>> + pcfg.phy_type_high |= IXGBE_PHY_TYPE_HIGH_10G_USXGMII;
>> + }
>> +
>> + /* Mask the set values to avoid requesting unsupported link types */
>> + pcfg.phy_type_low &= sup_phy_type_low;
>> + pcfg.phy_type_high &= sup_phy_type_high;
>> +
>> + if (pcfg.phy_type_high != pcaps.phy_type_high ||
>> + pcfg.phy_type_low != pcaps.phy_type_low ||
>> + pcfg.caps != pcaps.caps) {
>> + pcfg.caps |= IXGBE_ACI_PHY_ENA_LINK;
>> + pcfg.caps |= IXGBE_ACI_PHY_ENA_AUTO_LINK_UPDT;
>> +
>> + err = ixgbe_aci_set_phy_cfg(hw, &pcfg);
>> + if (err)
>> + return err;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * ixgbe_set_phy_power_e610 - Control power for copper PHY
>> + * @hw: pointer to hardware structure
>> + * @on: true for on, false for off
>> + *
>> + * Set the power on/off of the PHY
>> + * by getting its capabilities and setting the appropriate
>> + * configuration parameters.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_set_phy_power_e610(struct ixgbe_hw *hw, bool on)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data phy_caps = { 0 };
>> + struct ixgbe_aci_cmd_set_phy_cfg_data phy_cfg = { 0 };
>> + int err;
>> +
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_ACTIVE_CFG,
>> + &phy_caps);
>> + if (err)
>> + return err;
>> +
>> + ixgbe_copy_phy_caps_to_cfg(&phy_caps, &phy_cfg);
>> +
>> + if (on)
>> + phy_cfg.caps &= ~IXGBE_ACI_PHY_ENA_LOW_POWER;
>> + else
>> + phy_cfg.caps |= IXGBE_ACI_PHY_ENA_LOW_POWER;
>> +
>> + /* PHY is already in requested power mode. */
>> + if (phy_caps.caps == phy_cfg.caps)
>> + return 0;
>> +
>> + phy_cfg.caps |= IXGBE_ACI_PHY_ENA_LINK;
>> + phy_cfg.caps |= IXGBE_ACI_PHY_ENA_AUTO_LINK_UPDT;
>> +
>> + err = ixgbe_aci_set_phy_cfg(hw, &phy_cfg);
>[Kalesh] Change it as:
>return ixgbe_aci_set_phy_cfg(hw, &phy_cfg);
Will do.
>> +
>> + return err;
>> +}
>> +
>> +/**
>> + * ixgbe_enter_lplu_e610 - Transition to low power states
>> + * @hw: pointer to hardware structure
>> + *
>> + * Configures Low Power Link Up on transition to low power states
>> + * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting the
>> + * X557 PHY immediately prior to entering LPLU.
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_enter_lplu_e610(struct ixgbe_hw *hw)
>> +{
>> + struct ixgbe_aci_cmd_get_phy_caps_data phy_caps = { 0 };
>> + struct ixgbe_aci_cmd_set_phy_cfg_data phy_cfg = { 0 };
>> + int err;
>> +
>> + err = ixgbe_aci_get_phy_caps(hw, false,
>> + IXGBE_ACI_REPORT_ACTIVE_CFG,
>> + &phy_caps);
>> + if (err)
>> + return err;
>> +
>> + ixgbe_copy_phy_caps_to_cfg(&phy_caps, &phy_cfg);
>> +
>> + phy_cfg.low_power_ctrl_an |= IXGBE_ACI_PHY_EN_D3COLD_LOW_POWER_AUTONEG;
>> +
>> + err = ixgbe_aci_set_phy_cfg(hw, &phy_cfg);
>[Kalesh] Same comment as above
Will do.
>> +
>> + return err;
>> +}
>> +
>> +/**
>> + * ixgbe_aci_get_netlist_node - get a node handle
>> + * @hw: pointer to the hw struct
>> + * @cmd: get_link_topo AQ structure
>> + * @node_part_number: output node part number if node found
>> + * @node_handle: output node handle parameter if node found
>> + *
>> + * Get the netlist node and assigns it to
>> + * the provided handle using ACI command (0x06E0).
>> + *
>> + * Return: the exit code of the operation.
>> + */
>> +int ixgbe_aci_get_netlist_node(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_get_link_topo *cmd,
>> + u8 *node_part_number, u16 *node_handle)
>> +{
>> + struct ixgbe_aci_desc desc;
>> +
>> + ixgbe_fill_dflt_direct_cmd_desc(&desc, ixgbe_aci_opc_get_link_topo);
>> + desc.params.get_link_topo = *cmd;
>> +
>> + if (ixgbe_aci_send_cmd(hw, &desc, NULL, 0))
>> + return -EOPNOTSUPP;
>> +
>> + if (node_handle)
>> + *node_handle = desc.params.get_link_topo.addr.handle;
>> + if (node_part_number)
>> + *node_part_number = desc.params.get_link_topo.node_part_num;
>> +
>> + return 0;
>> +}
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
>> index 5c5a676..4a4f969 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
>> @@ -27,5 +27,37 @@ int ixgbe_aci_get_phy_caps(struct ixgbe_hw *hw, bool qual_mods, u8 report_mode,
>> struct ixgbe_aci_cmd_get_phy_caps_data *pcaps);
>> void ixgbe_copy_phy_caps_to_cfg(struct ixgbe_aci_cmd_get_phy_caps_data *caps,
>> struct ixgbe_aci_cmd_set_phy_cfg_data *cfg);
>> +int ixgbe_aci_set_phy_cfg(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_set_phy_cfg_data *cfg);
>> +int ixgbe_aci_set_link_restart_an(struct ixgbe_hw *hw, bool ena_link);
>> +int ixgbe_update_link_info(struct ixgbe_hw *hw);
>> +int ixgbe_get_link_status(struct ixgbe_hw *hw, bool *link_up);
>> +int ixgbe_aci_get_link_info(struct ixgbe_hw *hw, bool ena_lse,
>> + struct ixgbe_link_status *link);
>> +int ixgbe_aci_set_event_mask(struct ixgbe_hw *hw, u8 port_num, u16 mask);
>> +int ixgbe_configure_lse(struct ixgbe_hw *hw, bool activate, u16 mask);
>> +enum ixgbe_media_type ixgbe_get_media_type_e610(struct ixgbe_hw *hw);
>> +int ixgbe_setup_link_e610(struct ixgbe_hw *hw, ixgbe_link_speed speed,
>> + bool autoneg_wait);
>> +int ixgbe_check_link_e610(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
>> + bool *link_up, bool link_up_wait_to_complete);
>> +int ixgbe_get_link_capabilities_e610(struct ixgbe_hw *hw,
>> + ixgbe_link_speed *speed,
>> + bool *autoneg);
>> +int ixgbe_cfg_phy_fc(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_set_phy_cfg_data *cfg,
>> + enum ixgbe_fc_mode req_mode);
>> +int ixgbe_setup_fc_e610(struct ixgbe_hw *hw);
>> +void ixgbe_fc_autoneg_e610(struct ixgbe_hw *hw);
>> +void ixgbe_disable_rx_e610(struct ixgbe_hw *hw);
>> +int ixgbe_init_phy_ops_e610(struct ixgbe_hw *hw);
>> +int ixgbe_identify_phy_e610(struct ixgbe_hw *hw);
>> +int ixgbe_identify_module_e610(struct ixgbe_hw *hw);
>> +int ixgbe_setup_phy_link_e610(struct ixgbe_hw *hw);
>> +int ixgbe_set_phy_power_e610(struct ixgbe_hw *hw, bool on);
>> +int ixgbe_enter_lplu_e610(struct ixgbe_hw *hw);
>> +int ixgbe_aci_get_netlist_node(struct ixgbe_hw *hw,
>> + struct ixgbe_aci_cmd_get_link_topo *cmd,
>> + u8 *node_part_number, u16 *node_handle);
>>
>> #endif /* _IXGBE_E610_H_ */
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
>> index 6c6d990..1f97652 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
>> @@ -652,6 +652,7 @@ struct ixgbe_aci_cmd_link_topo_params {
>> #define IXGBE_ACI_LINK_TOPO_NODE_TYPE_CLK_MUX 10
>> #define IXGBE_ACI_LINK_TOPO_NODE_TYPE_GPS 11
>> #define IXGBE_ACI_LINK_TOPO_NODE_CTX_S 4
>> +#define IXGBE_ACI_LINK_TOPO_NODE_CTX_M GENMASK(7, 4)
>> #define IXGBE_ACI_LINK_TOPO_NODE_CTX_GLOBAL 0
>> #define IXGBE_ACI_LINK_TOPO_NODE_CTX_BOARD 1
>> #define IXGBE_ACI_LINK_TOPO_NODE_CTX_PORT 2
>> --
>> 2.43.0
>>
>>
>
>
>--
>Regards,
>Kalesh A P
Thank you All for review.
Piotr
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