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/openbmc/linux/drivers/net/ethernet/qlogic/qed/ |
H A D | qed_mcp.c | 58874c7b Thu Jul 19 00:50:03 CDT 2018 Sudarsana Reddy Kalluru <sudarsana.kalluru@cavium.com> qed: Fix possible race for the link state value.
There's a possible race where driver can read link status in mid-transition and see that virtual-link is up yet speed is 0. Since in this mid-transition we're guaranteed to see a mailbox from MFW soon, we can afford to treat this as link down.
Fixes: cc875c2e ("qed: Add link support") Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net> 58874c7b Thu Jul 19 00:50:03 CDT 2018 Sudarsana Reddy Kalluru <sudarsana.kalluru@cavium.com> qed: Fix possible race for the link state value. There's a possible race where driver can read link status in mid-transition and see that virtual-link is up yet speed is 0. Since in this mid-transition we're guaranteed to see a mailbox from MFW soon, we can afford to treat this as link down. Fixes: cc875c2e ("qed: Add link support") Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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