diff options
author | Felix Manlunas <felix.manlunas@cavium.com> | 2018-08-28 18:51:30 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-08-29 20:07:41 -0700 |
commit | c9aec05228dc6fa5573c56dba6bed43250228069 (patch) | |
tree | b0d0eb8c1903db75897bc104ea7b5ef38b929e73 /drivers/net/ethernet/cavium/liquidio/response_manager.h | |
parent | net/tls: Calculate nsg for zerocopy path without skb_cow_data. (diff) | |
download | linux-dev-c9aec05228dc6fa5573c56dba6bed43250228069.tar.xz linux-dev-c9aec05228dc6fa5573c56dba6bed43250228069.zip |
liquidio: improve soft command handling
1. Set LIO_SC_MAX_TMO_MS as the maximum timeout value for a soft command
(sc). All sc's use this value as a hard timeout value. Add expiry_time
in struct octeon_soft_command to keep the hard timeout value. The field
wait_time and timeout in struct octeon_soft_command will be obsoleted in
the last patch of this patch series.
2. Add processing a synchronous sc in sc response thread
lio_process_ordered_list. The memory allocated for a synchronous sc will
be freed by lio_process_ordered_list() to the sc pool.
3. Add two response lists for lio_process_ordered_list to process the
storage allocated for sc's:
OCTEON_DONE_SC_LIST response list keeps all sc's which will be freed to
the pool after their requestors have finished processing the responses.
OCTEON_ZOMBIE_SC_LIST response list keeps all sc's which have got
LIO_SC_MAX_TMO_MS timeout.
When an sc gets a hard timeout, lio_process_order_list() will recheck
its status 1 ms later. If the status has not updated by the firmware at
that time, the sc will be removed from OCTEON_DONE_SC_LIST response list
to OCTEON_ZOMBIE_SC_LIST response list. The sc's in the
OCTEON_ZOMBIE_SC_LIST response list will be freed when the driver is
unloaded.
Signed-off-by: Weilin Chang <weilin.chang@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/response_manager.h')
-rw-r--r-- | drivers/net/ethernet/cavium/liquidio/response_manager.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/response_manager.h b/drivers/net/ethernet/cavium/liquidio/response_manager.h index 9169c2815dba..ed4020d26fae 100644 --- a/drivers/net/ethernet/cavium/liquidio/response_manager.h +++ b/drivers/net/ethernet/cavium/liquidio/response_manager.h @@ -53,7 +53,9 @@ enum { OCTEON_ORDERED_LIST = 0, OCTEON_UNORDERED_NONBLOCKING_LIST = 1, OCTEON_UNORDERED_BLOCKING_LIST = 2, - OCTEON_ORDERED_SC_LIST = 3 + OCTEON_ORDERED_SC_LIST = 3, + OCTEON_DONE_SC_LIST = 4, + OCTEON_ZOMBIE_SC_LIST = 5 }; /** Response Order values for a Octeon Request. */ |