Searched hist:eaa50fc5 (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/drivers/net/ethernet/qlogic/qed/ |
H A D | qed_mcp.h | eaa50fc5 Sun Aug 19 16:01:44 CDT 2018 Tomer Tayar <Tomer.Tayar@cavium.com> qed: Prevent a possible deadlock during driver load and unload
The MFW manages an internal lock to prevent concurrent hardware (de)initialization of different PFs. This, together with the busy-waiting for the MFW's responses for commands, might lead to a deadlock during concurrent load or unload of PFs. This patch adds the option to sleep within the busy-waiting, and uses it for the (un)load requests (which are not sent from an interrupt context) to prevent the possible deadlock.
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net> eaa50fc5 Sun Aug 19 16:01:44 CDT 2018 Tomer Tayar <Tomer.Tayar@cavium.com> qed: Prevent a possible deadlock during driver load and unload The MFW manages an internal lock to prevent concurrent hardware (de)initialization of different PFs. This, together with the busy-waiting for the MFW's responses for commands, might lead to a deadlock during concurrent load or unload of PFs. This patch adds the option to sleep within the busy-waiting, and uses it for the (un)load requests (which are not sent from an interrupt context) to prevent the possible deadlock. Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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H A D | qed_mcp.c | eaa50fc5 Sun Aug 19 16:01:44 CDT 2018 Tomer Tayar <Tomer.Tayar@cavium.com> qed: Prevent a possible deadlock during driver load and unload
The MFW manages an internal lock to prevent concurrent hardware (de)initialization of different PFs. This, together with the busy-waiting for the MFW's responses for commands, might lead to a deadlock during concurrent load or unload of PFs. This patch adds the option to sleep within the busy-waiting, and uses it for the (un)load requests (which are not sent from an interrupt context) to prevent the possible deadlock.
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net> eaa50fc5 Sun Aug 19 16:01:44 CDT 2018 Tomer Tayar <Tomer.Tayar@cavium.com> qed: Prevent a possible deadlock during driver load and unload The MFW manages an internal lock to prevent concurrent hardware (de)initialization of different PFs. This, together with the busy-waiting for the MFW's responses for commands, might lead to a deadlock during concurrent load or unload of PFs. This patch adds the option to sleep within the busy-waiting, and uses it for the (un)load requests (which are not sent from an interrupt context) to prevent the possible deadlock. Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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