e1000: Enable TSO on 82574
Further testing indicates something wrong with particular reciever, enabling TSO 82574 for wider testing. Tested by: karels MFC after: 3 months
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@ -906,9 +906,6 @@ em_if_attach_pre(if_ctx_t ctx)
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scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO |
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CSUM_IP6_TCP | CSUM_IP6_UDP;
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/* Disable TSO on 82574L due to performance loss being investigated */
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if (hw->mac.type == e1000_82574)
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scctx->isc_capenable &= ~IFCAP_TSO;
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/*
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* Disable TSO on SPT due to errata that downclocks DMA performance
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* i218-i219 Specification Update 1.5.4.5
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