129 lines
4.1 KiB
Diff
129 lines
4.1 KiB
Diff
From 412fdc8c0d51500e42e76e788ece3ca7dd260ced Mon Sep 17 00:00:00 2001
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Message-Id: <412fdc8c0d51500e42e76e788ece3ca7dd260ced.1528830095.git.Jim.Somerville@windriver.com>
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From: Vadim Suraev <vsuraev@northforgeinc.com>
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Date: Mon, 8 Feb 2016 15:57:30 -0500
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Subject: [PATCH 1/3] i40e: Enable getting link status from VF
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Add handling of custom OP code sent from the PMD VF to get link status via the
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virtual channel interface.
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Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
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Signed-off-by: eric zhang <eric.zhang@windriver.com>
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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src/i40e_virtchnl_pf.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++
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src/virtchnl.h | 1 +
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2 files changed, 79 insertions(+)
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diff --git a/src/i40e_virtchnl_pf.c b/src/i40e_virtchnl_pf.c
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index 020bacb..126ec19 100644
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--- a/src/i40e_virtchnl_pf.c
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+++ b/src/i40e_virtchnl_pf.c
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@@ -1857,6 +1857,81 @@ error_param:
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aq_ret);
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}
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+struct i40e_eth_link {
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+ uint16_t link_speed; /**< ETH_LINK_SPEED_[10, 100, 1000, 10000] */
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+ uint16_t link_duplex; /**< ETH_LINK_[HALF_DUPLEX, FULL_DUPLEX] */
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+ uint8_t link_status : 1; /**< 1 -> link up, 0 -> link down */
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+}__attribute__((aligned(8)));
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+
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+#define ETH_LINK_SPEED_AUTONEG 0 /**< Auto-negotiate link speed. */
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+#define ETH_LINK_SPEED_10 10 /**< 10 megabits/second. */
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+#define ETH_LINK_SPEED_100 100 /**< 100 megabits/second. */
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+#define ETH_LINK_SPEED_1000 1000 /**< 1 gigabits/second. */
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+#define ETH_LINK_SPEED_10000 10000 /**< 10 gigabits/second. */
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+#define ETH_LINK_SPEED_10G 10000 /**< alias of 10 gigabits/second. */
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+#define ETH_LINK_SPEED_20G 20000 /**< 20 gigabits/second. */
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+#define ETH_LINK_SPEED_40G 40000 /**< 40 gigabits/second. */
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+
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+#define ETH_LINK_AUTONEG_DUPLEX 0 /**< Auto-negotiate duplex. */
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+#define ETH_LINK_HALF_DUPLEX 1 /**< Half-duplex connection. */
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+#define ETH_LINK_FULL_DUPLEX 2 /**< Full-duplex connection. */
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+
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+static void
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+i40e_vc_get_link_status(struct i40e_vf *vf)
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+{
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+ struct i40e_pf *pf = vf->pf;
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+ struct i40e_hw *hw;
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+ i40e_status aq_ret = I40E_SUCCESS;
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+ i40e_status status;
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+ struct i40e_eth_link eth_link;
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+ bool new_link;
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+
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+ if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
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+ !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
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+ aq_ret = I40E_ERR_PARAM;
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+ goto error_param;
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+ }
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+ hw = &pf->hw;
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+
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+ /* set this to force the get_link_status call to refresh state */
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+ pf->hw.phy.get_link_info = true;
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+
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+ status = i40e_get_link_status(&pf->hw, &new_link);
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+ if (status != I40E_SUCCESS) {
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+ dev_dbg(&pf->pdev->dev, "couldn't get link state, status: %d\n",
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+ status);
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+ aq_ret = I40E_ERR_INVALID_LINK_SETTINGS;
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+ goto error_param;
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+ }
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+
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+ /* Update link status first to acquire latest link change */
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+ eth_link.link_status = new_link ? 1 : 0;
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+
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+ switch(hw->phy.link_info.link_speed) {
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+ case I40E_LINK_SPEED_40GB:
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+ eth_link.link_speed = ETH_LINK_SPEED_40G;
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+ break;
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+ case I40E_LINK_SPEED_10GB:
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+ eth_link.link_speed = ETH_LINK_SPEED_10G;
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+ break;
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+ case I40E_LINK_SPEED_1GB:
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+ eth_link.link_speed = ETH_LINK_SPEED_1000;
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+ break;
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+ case I40E_LINK_SPEED_100MB:
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+ eth_link.link_speed = ETH_LINK_SPEED_100;
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+ break;
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+ default:
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+ eth_link.link_speed = ETH_LINK_SPEED_AUTONEG;
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+ break;
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+ }
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+ eth_link.link_duplex = ETH_LINK_FULL_DUPLEX;/* always */
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+
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+error_param:
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+ i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_LINK_STAT,
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+ aq_ret, (uint8_t *)ð_link,
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+ sizeof(eth_link));
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+}
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+
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/**
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* i40e_vc_config_queues_msg
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* @vf: pointer to the VF info
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@@ -2901,6 +2976,9 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
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case VIRTCHNL_OP_REQUEST_QUEUES:
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ret = i40e_vc_request_queues_msg(vf, msg, msglen);
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break;
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+ case VIRTCHNL_OP_GET_LINK_STAT:
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+ i40e_vc_get_link_status(vf);
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+ break;
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case VIRTCHNL_OP_UNKNOWN:
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default:
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diff --git a/src/virtchnl.h b/src/virtchnl.h
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index afde603..b9b38c0 100644
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--- a/src/virtchnl.h
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+++ b/src/virtchnl.h
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@@ -133,6 +133,7 @@ enum virtchnl_ops {
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VIRTCHNL_OP_ENABLE_VLAN_STRIPPING = 27,
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VIRTCHNL_OP_DISABLE_VLAN_STRIPPING = 28,
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VIRTCHNL_OP_REQUEST_QUEUES = 29,
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+ VIRTCHNL_OP_GET_LINK_STAT = 0x101,
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};
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--
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1.8.3.1
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