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cxgb4: Support CPL_SGE_EGR_UPDATEs encapsulated in a CPL_FW4_MSG

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Newer firmware can post CPL_SGE_EGR_UPDATE message encapsulated in a
CPL_FW4_MSG as follows

flit0 rss_header (if DropRSS == 0 in IQ context)
flit1 CPL_FW4_MSG cpl
flit2 rss_header w/opcode CPL_SGE_EGR_UPDATE
flit3 CPL_SGE_EGR_UPDATE cpl

So FW4_MSG CPLs with a newly created type of FW_TYPE_RSSCPL have the
CPL_SGE_EGR_UPDATE CPL message in flit 2 of the FW4_MSG. Firmware can still
post regular CPL_SGE_EGR_UPDATE messages, so the drivers need to handle
both.

This patch also writes a new parameter to firmware requesting encapsulated
EGR_UPDATE. This allows firmware with this support to not break older drivers.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vipul Pandya 2013-04-29 04:04:40 +00:00 committed by David S. Miller
parent 9ef603a041
commit b407a4a908
3 changed files with 76 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -645,6 +645,21 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp,
u8 opcode = ((const struct rss_header *)rsp)->opcode;
rsp++; /* skip RSS header */
/* FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG.
*/
if (unlikely(opcode == CPL_FW4_MSG &&
((const struct cpl_fw4_msg *)rsp)->type == FW_TYPE_RSSCPL)) {
rsp++;
opcode = ((const struct rss_header *)rsp)->opcode;
rsp++;
if (opcode != CPL_SGE_EGR_UPDATE) {
dev_err(q->adap->pdev_dev, "unexpected FW4/CPL %#x on FW event queue\n"
, opcode);
goto out;
}
}
if (likely(opcode == CPL_SGE_EGR_UPDATE)) {
const struct cpl_sge_egr_update *p = (void *)rsp;
unsigned int qid = EGR_QID(ntohl(p->opcode_qid));
@ -679,6 +694,7 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp,
} else
dev_err(q->adap->pdev_dev,
"unexpected CPL %#x on FW event queue\n", opcode);
out:
return 0;
}
@ -696,6 +712,12 @@ static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp,
{
struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq);
/* FW can send CPLs encapsulated in a CPL_FW4_MSG.
*/
if (((const struct rss_header *)rsp)->opcode == CPL_FW4_MSG &&
((const struct cpl_fw4_msg *)(rsp + 1))->type == FW_TYPE_RSSCPL)
rsp += 2;
if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) {
rxq->stats.nomem++;
return -1;
@ -4990,6 +5012,15 @@ static int adap_init0(struct adapter *adap)
adap->tids.aftid_end = val[1];
}
/* If we're running on newer firmware, let it know that we're
* prepared to deal with encapsulated CPL messages. Older
* firmware won't understand this and we'll just get
* unencapsulated messages ...
*/
params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP);
val[0] = 1;
(void) t4_set_params(adap, adap->mbox, adap->fn, 0, 1, params, val);
/*
* Get device capabilities so we can determine what resources we need
* to manage.

10
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
View File

@ -688,6 +688,15 @@ struct cpl_sge_egr_update {
__be16 pidx;
};
/* cpl_fw*.type values */
enum {
FW_TYPE_CMD_RPL = 0,
FW_TYPE_WR_RPL = 1,
FW_TYPE_CQE = 2,
FW_TYPE_OFLD_CONNECTION_WR_RPL = 3,
FW_TYPE_RSSCPL = 4,
};
struct cpl_fw4_pld {
u8 opcode;
u8 rsvd0[3];
@ -737,6 +746,7 @@ enum {
FW6_TYPE_WR_RPL = 1,
FW6_TYPE_CQE = 2,
FW6_TYPE_OFLD_CONNECTION_WR_RPL = 3,
FW6_TYPE_RSSCPL = FW_TYPE_RSSCPL,
};
struct cpl_fw6_msg_ofld_connection_wr_rpl {

38
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
View File

@ -973,7 +973,9 @@ enum fw_params_param_pfvf {
FW_PARAMS_PARAM_PFVF_EQ_START = 0x2B,
FW_PARAMS_PARAM_PFVF_EQ_END = 0x2C,
FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_START = 0x2D,
FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_END = 0x2E
FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_END = 0x2E,
FW_PARAMS_PARAM_PFVF_ETHOFLD_END = 0x30,
FW_PARAMS_PARAM_PFVF_CPLFW4MSG_ENCAP = 0x31
};
/*
@ -1758,6 +1760,25 @@ enum fw_port_module_type {
FW_PORT_MOD_TYPE_NONE = FW_PORT_CMD_MODTYPE_MASK
};
enum fw_port_mod_sub_type {
FW_PORT_MOD_SUB_TYPE_NA,
FW_PORT_MOD_SUB_TYPE_MV88E114X = 0x1,
FW_PORT_MOD_SUB_TYPE_TN8022 = 0x2,
FW_PORT_MOD_SUB_TYPE_AQ1202 = 0x3,
FW_PORT_MOD_SUB_TYPE_88x3120 = 0x4,
FW_PORT_MOD_SUB_TYPE_BCM84834 = 0x5,
FW_PORT_MOD_SUB_TYPE_BT_VSC8634 = 0x8,
/* The following will never been in the VPD. They are TWINAX cable
* lengths decoded from SFP+ module i2c PROMs. These should
* almost certainly go somewhere else ...
*/
FW_PORT_MOD_SUB_TYPE_TWINAX_1 = 0x9,
FW_PORT_MOD_SUB_TYPE_TWINAX_3 = 0xA,
FW_PORT_MOD_SUB_TYPE_TWINAX_5 = 0xB,
FW_PORT_MOD_SUB_TYPE_TWINAX_7 = 0xC,
};
/* port stats */
#define FW_NUM_PORT_STATS 50
#define FW_NUM_PORT_TX_STATS 23
@ -2123,11 +2144,11 @@ struct fw_hdr {
u8 intfver_ri;
u8 intfver_iscsipdu;
u8 intfver_iscsi;
u8 intfver_fcoepdu;
u8 intfver_fcoe;
u8 reserved2;
__u32 reserved2;
__u32 reserved3;
__u32 reserved4;
__u32 reserved5;
__be32 flags;
__be32 reserved6[23];
};
@ -2137,6 +2158,17 @@ struct fw_hdr {
#define FW_HDR_FW_VER_MICRO_GET(x) (((x) >> 8) & 0xff)
#define FW_HDR_FW_VER_BUILD_GET(x) (((x) >> 0) & 0xff)
enum fw_hdr_intfver {
FW_HDR_INTFVER_NIC = 0x00,
FW_HDR_INTFVER_VNIC = 0x00,
FW_HDR_INTFVER_OFLD = 0x00,
FW_HDR_INTFVER_RI = 0x00,
FW_HDR_INTFVER_ISCSIPDU = 0x00,
FW_HDR_INTFVER_ISCSI = 0x00,
FW_HDR_INTFVER_FCOEPDU = 0x00,
FW_HDR_INTFVER_FCOE = 0x00,
};
enum fw_hdr_flags {
FW_HDR_FLAGS_RESET_HALT = 0x00000001,
};