IB/qib: Set default LE2 value for active cables to 0
For active and far-EQ cables use an LE2 value of 0 for improved SI. Signed-off-by: Mitko Haralanov <mitko@qlogic.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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Roland Dreier

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@@ -5582,9 +5582,16 @@ static void qsfp_7322_event(struct work_struct *work)
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* even on failure to read cable information. We don't
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* get here for QME, so IS_QME check not needed here.
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*/
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le2 = (!ret && qd->cache.atten[1] >= qib_long_atten &&
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!ppd->dd->cspec->r1 && QSFP_IS_CU(qd->cache.tech)) ?
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LE2_5m : LE2_DEFAULT;
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if (!ret && !ppd->dd->cspec->r1) {
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if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
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le2 = LE2_QME;
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else if (qd->cache.atten[1] >= qib_long_atten &&
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QSFP_IS_CU(qd->cache.tech))
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le2 = LE2_5m;
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else
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le2 = LE2_DEFAULT;
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} else
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le2 = LE2_DEFAULT;
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ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
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init_txdds_table(ppd, 0);
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}
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