50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
From 25b521f58b33bf070c0b31d077333c13c3ad25e8 Mon Sep 17 00:00:00 2001
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Message-Id: <25b521f58b33bf070c0b31d077333c13c3ad25e8.1528830095.git.Jim.Somerville@windriver.com>
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In-Reply-To: <412fdc8c0d51500e42e76e788ece3ca7dd260ced.1528830095.git.Jim.Somerville@windriver.com>
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References: <412fdc8c0d51500e42e76e788ece3ca7dd260ced.1528830095.git.Jim.Somerville@windriver.com>
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From: Jim Somerville <Jim.Somerville@windriver.com>
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Date: Mon, 2 Apr 2018 15:35:12 -0400
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Subject: [PATCH 3/3] ndo_get_vf_config poll for out of vf reset
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Same solution as 028daf80117376b22909becd9720daaefdfceff4 from the
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net-next tree as supplied by Intel, but we apply it to
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ndo_get_vf_config instead.
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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 | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/src/i40e_virtchnl_pf.c b/src/i40e_virtchnl_pf.c
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index da29fc3..d5935d6 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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@@ -4829,6 +4829,7 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
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struct i40e_pf *pf = vsi->back;
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struct i40e_vf *vf;
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int ret = 0;
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+ u8 i;
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if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
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dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
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@@ -4843,6 +4844,16 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
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vf = &pf->vf[vf_id];
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/* first vsi is always the LAN vsi */
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vsi = pf->vsi[vf->lan_vsi_idx];
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+
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+ /* When the VF is resetting wait until it is done.
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+ * It can take up to 200 milliseconds,
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+ * but wait for up to 300 milliseconds to be safe.
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+ */
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+ for (i = 0; i < 15; i++) {
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+ if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
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+ break;
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+ msleep(20);
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+ }
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if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
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dev_err(&pf->pdev->dev, "%s: VF %d still in reset. Try again.\n",
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__func__, vf_id);
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--
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1.8.3.1
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