diff options
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 77 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_core_mpc.h | 26 |
2 files changed, 101 insertions, 2 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 92e539d1fbd3..ab022b6a41ea 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5394,6 +5394,21 @@ static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) return cmd->hdr.return_code; } +static int qeth_setassparms_get_caps_cb(struct qeth_card *card, + struct qeth_reply *reply, + unsigned long data) +{ + struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; + struct qeth_ipa_caps *caps = reply->param; + + if (qeth_setassparms_inspect_rc(cmd)) + return 0; + + caps->supported = cmd->data.setassparms.data.caps.supported; + caps->enabled = cmd->data.setassparms.data.caps.enabled; + return 0; +} + int qeth_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { @@ -6396,6 +6411,20 @@ static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, return rc ? -EIO : 0; } +static int qeth_start_tso_cb(struct qeth_card *card, struct qeth_reply *reply, + unsigned long data) +{ + struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; + struct qeth_tso_start_data *tso_data = reply->param; + + if (qeth_setassparms_inspect_rc(cmd)) + return 0; + + tso_data->mss = cmd->data.setassparms.data.tso.mss; + tso_data->supported = cmd->data.setassparms.data.tso.supported; + return 0; +} + static int qeth_set_tso_off(struct qeth_card *card, enum qeth_prot_versions prot) { @@ -6406,8 +6435,52 @@ static int qeth_set_tso_off(struct qeth_card *card, static int qeth_set_tso_on(struct qeth_card *card, enum qeth_prot_versions prot) { - return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, - IPA_CMD_ASS_START, 0, prot); + struct qeth_tso_start_data tso_data; + struct qeth_cmd_buffer *iob; + struct qeth_ipa_caps caps; + int rc; + + iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, + IPA_CMD_ASS_START, 0, prot); + if (!iob) + return -ENOMEM; + + rc = qeth_send_setassparms(card, iob, 0, 0 /* unused */, + qeth_start_tso_cb, &tso_data); + if (rc) + return rc; + + if (!tso_data.mss || !(tso_data.supported & QETH_IPA_LARGE_SEND_TCP)) { + qeth_set_tso_off(card, prot); + return -EOPNOTSUPP; + } + + iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, + IPA_CMD_ASS_ENABLE, sizeof(caps), prot); + if (!iob) { + qeth_set_tso_off(card, prot); + return -ENOMEM; + } + + /* enable TSO capability */ + caps.supported = 0; + caps.enabled = QETH_IPA_LARGE_SEND_TCP; + rc = qeth_send_setassparms(card, iob, sizeof(caps), (long) &caps, + qeth_setassparms_get_caps_cb, &caps); + if (rc) { + qeth_set_tso_off(card, prot); + return rc; + } + + if (!qeth_ipa_caps_supported(&caps, QETH_IPA_LARGE_SEND_TCP) || + !qeth_ipa_caps_enabled(&caps, QETH_IPA_LARGE_SEND_TCP)) { + qeth_set_tso_off(card, prot); + return -EOPNOTSUPP; + } + + dev_info(&card->gdev->dev, "TSOv%u enabled (MSS: %u)\n", prot, + tso_data.mss); + return 0; } static int qeth_set_ipa_tso(struct qeth_card *card, bool on, diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index aa5de1fe01e1..e85090467afe 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -56,6 +56,21 @@ static inline bool qeth_intparm_is_iob(unsigned long intparm) #define IPA_CMD_INITIATOR_OSA_REPLY 0x81 #define IPA_CMD_PRIM_VERSION_NO 0x01 +struct qeth_ipa_caps { + u32 supported; + u32 enabled; +}; + +static inline bool qeth_ipa_caps_supported(struct qeth_ipa_caps *caps, u32 mask) +{ + return (caps->supported & mask) == mask; +} + +static inline bool qeth_ipa_caps_enabled(struct qeth_ipa_caps *caps, u32 mask) +{ + return (caps->enabled & mask) == mask; +} + enum qeth_card_types { QETH_CARD_TYPE_OSD = 1, QETH_CARD_TYPE_IQD = 5, @@ -405,14 +420,25 @@ struct qeth_checksum_cmd { __u32 enabled; } __packed; +enum qeth_ipa_large_send_caps { + QETH_IPA_LARGE_SEND_TCP = 0x00000001, +}; + +struct qeth_tso_start_data { + u32 mss; + u32 supported; +}; + /* SETASSPARMS IPA Command: */ struct qeth_ipacmd_setassparms { struct qeth_ipacmd_setassparms_hdr hdr; union { __u32 flags_32bit; + struct qeth_ipa_caps caps; struct qeth_checksum_cmd chksum; struct qeth_arp_cache_entry add_arp_entry; struct qeth_arp_query_data query_arp; + struct qeth_tso_start_data tso; __u8 ip[16]; } data; } __attribute__ ((packed)); |