isci: Disable link layer hang detection
Some targets exceed the hang detect timer. Use the OS timeout to catch hung tasks. Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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@ -242,11 +242,8 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy,
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&sci_phy->link_layer_registers->maximum_arbitration_wait_timer_timeout);
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}
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/*
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* Set the link layer hang detection to 500ms (0x1F4) from its default
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* value of 128ms. Max value is 511 ms.
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*/
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writel(0x1F4, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout);
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/* Disable link layer hang detection, rely on the OS timeout for I/O timeouts. */
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writel(0, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout);
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/* We can exit the initial state to the stopped state */
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sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED);
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