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i40e: Fix errors resulted while turning off TSO
On systems with 128 CPUs, turning off TSO results in errors, i40e 0000:03:00.0: failed to get tracking for 1 vectors for VSI 400, err=-12 i40e 0000:03:00.0: Couldn't create FDir VSI i40e 0000:03:00.0: i40e_ptp_init: PTP not supported on eth0 i40e 0000:03:00.0: couldn't add VEB, err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOENT i40e 0000:03:00.0: rebuild of switch failed: -1, will try to set up simple PF connection i40e 0000:03:00.0 eth0: adding 00:10:e0:8a:24:b6 vid=0 Enabling FD_SB without checking availability of MSI-X vector is the root cause. This change adds necessary check. Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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@ -283,6 +283,7 @@ struct i40e_pf {
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#endif /* I40E_FCOE */
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u16 num_lan_qps; /* num lan queues this PF has set up */
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u16 num_lan_msix; /* num queue vectors for the base PF vsi */
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u16 num_fdsb_msix; /* num queue vectors for sideband Fdir */
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u16 num_iwarp_msix; /* num of iwarp vectors for this PF */
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int iwarp_base_vector;
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int queues_left; /* queues left unclaimed */
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@ -7185,7 +7185,7 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi)
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vsi->alloc_queue_pairs = 1;
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vsi->num_desc = ALIGN(I40E_FDIR_RING_COUNT,
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I40E_REQ_DESCRIPTOR_MULTIPLE);
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vsi->num_q_vectors = 1;
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vsi->num_q_vectors = pf->num_fdsb_msix;
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break;
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case I40E_VSI_VMDQ2:
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@ -7569,9 +7569,11 @@ static int i40e_init_msix(struct i40e_pf *pf)
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/* reserve one vector for sideband flow director */
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if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
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if (vectors_left) {
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pf->num_fdsb_msix = 1;
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v_budget++;
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vectors_left--;
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} else {
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pf->num_fdsb_msix = 0;
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pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
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}
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}
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@ -8590,7 +8592,9 @@ bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features)
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/* Enable filters and mark for reset */
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if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
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need_reset = true;
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pf->flags |= I40E_FLAG_FD_SB_ENABLED;
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/* enable FD_SB only if there is MSI-X vector */
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if (pf->num_fdsb_msix > 0)
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pf->flags |= I40E_FLAG_FD_SB_ENABLED;
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} else {
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/* turn off filters, mark for reset and clear SW filter list */
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if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
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