diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-01-25 16:53:02 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-26 15:20:32 +0100 |
| commit | 7f92316c5393b583c5217bb2cfc789d6820ec393 (patch) | |
| tree | b0c80e1f44087668ba2e424914c8feac05203a3c /drivers/s390/net/qeth_core.h | |
| parent | 91003f354e6bbe8d225b4d54127d80c694d201d9 (diff) | |
s390/qeth: make cmd/reply matching more flexible
When data is received on the READ channel, the matching logic for cmds
that are waiting for a reply is currently hard-coded into the channel's
main IO callback.
Move this into a per-cmd callback, so that we can apply custom matching
logic for each individual cmd.
This also allows us to remove the coarse-grained check for unexpected
non-IPA replies, since they will no longer match against _all_ pending
cmds.
Note that IDX cmds use _no_ matcher, since their reply is synchronously
received as part of the cmd's IO.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_core.h')
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index d052a265da1c..950d01551373 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -608,6 +608,8 @@ struct qeth_cmd_buffer { long timeout; unsigned char *data; void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob); + bool (*match)(struct qeth_cmd_buffer *iob, + struct qeth_cmd_buffer *reply); void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob, unsigned int data_length); int rc; @@ -618,6 +620,14 @@ static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob) refcount_inc(&iob->ref_count); } +static inline struct qeth_ipa_cmd *__ipa_reply(struct qeth_cmd_buffer *iob) +{ + if (!IS_IPA(iob->data)) + return NULL; + + return (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); +} + static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) { return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); @@ -1023,7 +1033,9 @@ void qeth_setadp_promisc_mode(struct qeth_card *card, bool enable); int qeth_setadpparms_change_macaddr(struct qeth_card *); void qeth_tx_timeout(struct net_device *, unsigned int txqueue); void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, - u16 cmd_length); + u16 cmd_length, + bool (*match)(struct qeth_cmd_buffer *iob, + struct qeth_cmd_buffer *reply)); int qeth_query_switch_attributes(struct qeth_card *card, struct qeth_switch_info *sw_info); int qeth_query_card_info(struct qeth_card *card, |