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cxgbe(4): Ask the firmware for the start of the RSS slice for a port and

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save it for later.  This enables direct manipulation of the indirection
tables (although the stock driver doesn't do that right now).

MFC after:	1 month
This commit is contained in:
Navdeep Parhar 2015-07-17 06:46:18 +00:00
parent a8d65cade5
commit a1ed88571f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=285648
2 changed files with 13 additions and 0 deletions
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1
sys/dev/cxgbe/adapter.h
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@ -233,6 +233,7 @@ struct port_info {
uint16_t viid;
int16_t xact_addr_filt;/* index of exact MAC address filter */
uint16_t rss_size; /* size of VI's RSS table slice */
uint16_t rss_base; /* start of VI's RSS table slice */
uint8_t lport; /* associated offload logical port */
int8_t mdio_addr;
uint8_t port_type;

12
sys/dev/cxgbe/common/t4_hw.c
View File

@ -5699,6 +5699,7 @@ int __devinit t4_port_init(struct port_info *p, int mbox, int pf, int vf)
struct fw_port_cmd c;
u16 rss_size;
adapter_t *adap = p->adapter;
u32 param, val;
memset(&c, 0, sizeof(c));
@ -5737,6 +5738,17 @@ int __devinit t4_port_init(struct port_info *p, int mbox, int pf, int vf)
init_link_config(&p->link_cfg, ntohs(c.u.info.pcap));
param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_RSSINFO) |
V_FW_PARAMS_PARAM_YZ(p->viid);
ret = t4_query_params(adap, mbox, pf, vf, 1, &param, &val);
if (ret)
p->rss_base = 0xffff;
else {
/* MPASS((val >> 16) == rss_size); */
p->rss_base = val & 0xffff;
}
return 0;
}