Author: np
Date: Wed May 18 22:09:04 2011
New Revision: 222085
URL: http://svn.freebsd.org/changeset/base/222085
Log:
- Enable per-channel congestion notification.
- Enable PCIe relaxed ordering for all egress queues and rx data buffers.
MFC after: 3 days
Modified:
head/sys/dev/cxgbe/t4_main.c
head/sys/dev/cxgbe/t4_sge.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Wed May 18 21:06:20 2011
(r222084)
+++ head/sys/dev/cxgbe/t4_main.c Wed May 18 22:09:04 2011
(r222085)
@@ -366,7 +366,13 @@ t4_attach(device_t dev)
sc->mbox = sc->pf;
pci_enable_busmaster(dev);
- pci_set_max_read_req(dev, 4096);
+ if (pci_find_cap(dev, PCIY_EXPRESS, &i) == 0) {
+ pci_set_max_read_req(dev, 4096);
+ v = pci_read_config(dev, i + PCIR_EXPRESS_DEVICE_CTL, 2);
+ v |= PCIM_EXP_CTL_RELAXED_ORD_ENABLE;
+ pci_write_config(dev, i + PCIR_EXPRESS_DEVICE_CTL, v, 2);
+ }
+
snprintf(sc->lockname, sizeof(sc->lockname), "%s",
device_get_nameunit(dev));
mtx_init(&sc->sc_lock, sc->lockname, 0, MTX_DEF);
@@ -3206,6 +3212,7 @@ filter_rpl(struct adapter *sc, const str
}
}
+/* XXX: use pci_find_cap */
int
t4_os_find_pci_capability(struct adapter *sc, int cap)
{
Modified: head/sys/dev/cxgbe/t4_sge.c
==============================================================================
--- head/sys/dev/cxgbe/t4_sge.c Wed May 18 21:06:20 2011 (r222084)
+++ head/sys/dev/cxgbe/t4_sge.c Wed May 18 22:09:04 2011 (r222085)
@@ -100,7 +100,7 @@ static int alloc_ring(struct adapter *,
static int free_ring(struct adapter *, bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
void *);
static int alloc_iq_fl(struct port_info *, struct sge_iq *, struct sge_fl *,
- int);
+ int, int);
static int free_iq_fl(struct port_info *, struct sge_iq *, struct sge_fl *);
static int alloc_iq(struct sge_iq *, int);
static int free_iq(struct sge_iq *);
@@ -1104,7 +1104,7 @@ free_ring(struct adapter *sc, bus_dma_ta
*/
static int
alloc_iq_fl(struct port_info *pi, struct sge_iq *iq, struct sge_fl *fl,
- int intr_idx)
+ int intr_idx, int cong)
{
int rc, i, cntxt_id;
size_t len;
@@ -1155,6 +1155,8 @@ alloc_iq_fl(struct port_info *pi, struct
V_FW_IQ_CMD_IQESIZE(ilog2(iq->esize) - 4));
c.iqsize = htobe16(iq->qsize);
c.iqaddr = htobe64(iq->ba);
+ if (cong >= 0)
+ c.iqns_to_fl0congen = htobe32(F_FW_IQ_CMD_IQFLINTCONGEN);
if (fl) {
mtx_init(&fl->fl_lock, fl->lockname, NULL, MTX_DEF);
@@ -1198,7 +1200,15 @@ alloc_iq_fl(struct port_info *pi, struct
fl->needed = fl->cap;
c.iqns_to_fl0congen =
- htobe32(V_FW_IQ_CMD_FL0HOSTFCMODE(X_HOSTFCMODE_NONE));
+ htobe32(V_FW_IQ_CMD_FL0HOSTFCMODE(X_HOSTFCMODE_NONE) |
+ F_FW_IQ_CMD_FL0FETCHRO | F_FW_IQ_CMD_FL0DATARO |
+ F_FW_IQ_CMD_FL0PADEN);
+ if (cong >= 0) {
+ c.iqns_to_fl0congen |=
+ htobe32(V_FW_IQ_CMD_FL0CNGCHMAP(cong) |
+ F_FW_IQ_CMD_FL0CONGCIF |
+ F_FW_IQ_CMD_FL0CONGEN);
+ }
c.fl0dcaen_to_fl0cidxfthresh =
htobe16(V_FW_IQ_CMD_FL0FBMIN(X_FETCHBURSTMIN_64B) |
V_FW_IQ_CMD_FL0FBMAX(X_FETCHBURSTMAX_512B));
@@ -1325,7 +1335,7 @@ free_iq_fl(struct port_info *pi, struct
static int
alloc_iq(struct sge_iq *iq, int intr_idx)
{
- return alloc_iq_fl(NULL, iq, NULL, intr_idx);
+ return alloc_iq_fl(NULL, iq, NULL, intr_idx, -1);
}
static int
@@ -1342,7 +1352,7 @@ alloc_rxq(struct port_info *pi, struct s
struct sysctl_oid_list *children;
char name[16];
- rc = alloc_iq_fl(pi, &rxq->iq, &rxq->fl, intr_idx);
+ rc = alloc_iq_fl(pi, &rxq->iq, &rxq->fl, intr_idx, 1 << pi->tx_chan);
if (rc != 0)
return (rc);
@@ -1436,7 +1446,7 @@ alloc_ctrlq(struct adapter *sc, struct s
c.physeqid_pkd = htobe32(0);
c.fetchszm_to_iqid =
htobe32(V_FW_EQ_CTRL_CMD_HOSTFCMODE(X_HOSTFCMODE_STATUS_PAGE) |
- V_FW_EQ_CTRL_CMD_PCIECHN(idx) |
+ V_FW_EQ_CTRL_CMD_PCIECHN(idx) | F_FW_EQ_CTRL_CMD_FETCHRO |
V_FW_EQ_CTRL_CMD_IQID(eq->iqid));
c.dcaen_to_eqsize =
htobe32(V_FW_EQ_CTRL_CMD_FBMIN(X_FETCHBURSTMIN_64B) |
@@ -1561,7 +1571,7 @@ alloc_txq(struct port_info *pi, struct s
c.viid_pkd = htobe32(V_FW_EQ_ETH_CMD_VIID(pi->viid));
c.fetchszm_to_iqid =
htobe32(V_FW_EQ_ETH_CMD_HOSTFCMODE(X_HOSTFCMODE_STATUS_PAGE) |
- V_FW_EQ_ETH_CMD_PCIECHN(pi->tx_chan) |
+ V_FW_EQ_ETH_CMD_PCIECHN(pi->tx_chan) | F_FW_EQ_ETH_CMD_FETCHRO |
V_FW_EQ_ETH_CMD_IQID(eq->iqid));
c.dcaen_to_eqsize = htobe32(V_FW_EQ_ETH_CMD_FBMIN(X_FETCHBURSTMIN_64B) |
V_FW_EQ_ETH_CMD_FBMAX(X_FETCHBURSTMAX_512B) |
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