RDMA/nes: Enhanced PFT management scheme
Change management of perfect filter table to allow enhanced
performance applications.
Signed-off-by: Vadim Makhervaks <vmakhervaks@neteffect.com>
Signed-off-by: Sweta Bhatt <sweta.bhatt@einfochips.com>
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 5e13c26..eca3520 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -363,6 +363,9 @@
}
nes_init_csr_ne020(nesdev, hw_rev, port_count);
+ memset(nesadapter->pft_mcast_map, 255,
+ sizeof nesadapter->pft_mcast_map);
+
/* populate the new nesadapter */
nesadapter->devfn = nesdev->pcidev->devfn;
nesadapter->bus_number = nesdev->pcidev->bus->number;
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 1b93c57..610b9d8 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -968,6 +968,7 @@
#define DEFAULT_JUMBO_NES_QL_TARGET 40
#define DEFAULT_JUMBO_NES_QL_HIGH 128
#define NES_NIC_CQ_DOWNWARD_TREND 16
+#define NES_PFT_SIZE 48
struct nes_hw_tune_timer {
/* u16 cq_count; */
@@ -1117,6 +1118,7 @@
u8 virtwq;
u8 et_use_adaptive_rx_coalesce;
u8 adapter_fcn_count;
+ u8 pft_mcast_map[NES_PFT_SIZE];
};
struct nes_pbl {
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 639d0fc..7303586 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -91,6 +91,7 @@
static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
| NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
static int debug = -1;
+static int nics_per_function = 1;
/**
* nes_netdev_poll
@@ -201,7 +202,8 @@
nes_debug(NES_DBG_NETDEV, "i=%d, perfect filter table index= %d, PERF FILTER LOW"
" (Addr:%08X) = %08X, HIGH = %08X.\n",
i, nesvnic->qp_nic_index[i],
- NES_IDX_PERFECT_FILTER_LOW+((nesvnic->perfect_filter_index + i) * 8),
+ NES_IDX_PERFECT_FILTER_LOW+
+ (nesvnic->qp_nic_index[i] * 8),
macaddr_low,
(u32)macaddr_high | NES_MAC_ADDR_VALID |
((((u32)nesvnic->nic_index) << 16)));
@@ -833,6 +835,7 @@
{
struct nes_vnic *nesvnic = netdev_priv(netdev);
struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
struct dev_mc_list *multicast_addr;
u32 nic_active_bit;
u32 nic_active;
@@ -842,7 +845,12 @@
u8 mc_all_on = 0;
u8 mc_index;
int mc_nic_index = -1;
+ u8 pft_entries_preallocated = max(nesadapter->adapter_fcn_count *
+ nics_per_function, 4);
+ u8 max_pft_entries_avaiable = NES_PFT_SIZE - pft_entries_preallocated;
+ unsigned long flags;
+ spin_lock_irqsave(&nesadapter->resource_lock, flags);
nic_active_bit = 1 << nesvnic->nic_index;
if (netdev->flags & IFF_PROMISC) {
@@ -853,7 +861,7 @@
nic_active |= nic_active_bit;
nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
mc_all_on = 1;
- } else if ((netdev->flags & IFF_ALLMULTI) || (netdev->mc_count > NES_MULTICAST_PF_MAX) ||
+ } else if ((netdev->flags & IFF_ALLMULTI) ||
(nesvnic->nic_index > 3)) {
nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
nic_active |= nic_active_bit;
@@ -872,17 +880,34 @@
}
nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscous = %d, All Multicast = %d.\n",
- netdev->mc_count, (netdev->flags & IFF_PROMISC)?1:0,
- (netdev->flags & IFF_ALLMULTI)?1:0);
+ netdev->mc_count, !!(netdev->flags & IFF_PROMISC),
+ !!(netdev->flags & IFF_ALLMULTI));
if (!mc_all_on) {
multicast_addr = netdev->mc_list;
- perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW + 0x80;
- perfect_filter_register_address += nesvnic->nic_index*0x40;
- for (mc_index=0; mc_index < NES_MULTICAST_PF_MAX; mc_index++) {
- while (multicast_addr && nesvnic->mcrq_mcast_filter && ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic, multicast_addr->dmi_addr)) == 0))
+ perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW +
+ pft_entries_preallocated * 0x8;
+ for (mc_index = 0; mc_index < max_pft_entries_avaiable;
+ mc_index++) {
+ while (multicast_addr && nesvnic->mcrq_mcast_filter &&
+ ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic,
+ multicast_addr->dmi_addr)) == 0)) {
multicast_addr = multicast_addr->next;
+ }
if (mc_nic_index < 0)
mc_nic_index = nesvnic->nic_index;
+ while (nesadapter->pft_mcast_map[mc_index] < 16 &&
+ nesadapter->pft_mcast_map[mc_index] !=
+ nesvnic->nic_index &&
+ mc_index < max_pft_entries_avaiable) {
+ nes_debug(NES_DBG_NIC_RX,
+ "mc_index=%d skipping nic_index=%d,\
+ used for=%d \n", mc_index,
+ nesvnic->nic_index,
+ nesadapter->pft_mcast_map[mc_index]);
+ mc_index++;
+ }
+ if (mc_index >= max_pft_entries_avaiable)
+ break;
if (multicast_addr) {
DECLARE_MAC_BUF(mac);
nes_debug(NES_DBG_NIC_RX, "Assigning MC Address %s to register 0x%04X nic_idx=%d\n",
@@ -903,15 +928,33 @@
(u32)macaddr_high | NES_MAC_ADDR_VALID |
((((u32)(1<<mc_nic_index)) << 16)));
multicast_addr = multicast_addr->next;
+ nesadapter->pft_mcast_map[mc_index] =
+ nesvnic->nic_index;
} else {
nes_debug(NES_DBG_NIC_RX, "Clearing MC Address at register 0x%04X\n",
perfect_filter_register_address+(mc_index * 8));
nes_write_indexed(nesdev,
perfect_filter_register_address+4+(mc_index * 8),
0);
+ nesadapter->pft_mcast_map[mc_index] = 255;
}
}
+ /* PFT is not large enough */
+ if (multicast_addr && multicast_addr->next) {
+ nic_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_MULTICAST_ALL);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL,
+ nic_active);
+ nic_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_UNICAST_ALL);
+ nic_active &= ~nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL,
+ nic_active);
+ }
}
+
+ spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
}
@@ -1615,7 +1658,9 @@
nesvnic, (unsigned long)netdev->features, nesvnic->nic.qp_id,
nesvnic->nic_index, nesvnic->logical_port, nesdev->mac_index);
- if (nesvnic->nesdev->nesadapter->port_count == 1) {
+ if (nesvnic->nesdev->nesadapter->port_count == 1 &&
+ nesvnic->nesdev->nesadapter->adapter_fcn_count == 1) {
+
nesvnic->qp_nic_index[0] = nesvnic->nic_index;
nesvnic->qp_nic_index[1] = nesvnic->nic_index + 1;
if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT) {
@@ -1626,11 +1671,14 @@
nesvnic->qp_nic_index[3] = nesvnic->nic_index + 3;
}
} else {
- if (nesvnic->nesdev->nesadapter->port_count == 2) {
- nesvnic->qp_nic_index[0] = nesvnic->nic_index;
- nesvnic->qp_nic_index[1] = nesvnic->nic_index + 2;
- nesvnic->qp_nic_index[2] = 0xf;
- nesvnic->qp_nic_index[3] = 0xf;
+ if (nesvnic->nesdev->nesadapter->port_count == 2 ||
+ (nesvnic->nesdev->nesadapter->port_count == 1 &&
+ nesvnic->nesdev->nesadapter->adapter_fcn_count == 2)) {
+ nesvnic->qp_nic_index[0] = nesvnic->nic_index;
+ nesvnic->qp_nic_index[1] = nesvnic->nic_index
+ + 2;
+ nesvnic->qp_nic_index[2] = 0xf;
+ nesvnic->qp_nic_index[3] = 0xf;
} else {
nesvnic->qp_nic_index[0] = nesvnic->nic_index;
nesvnic->qp_nic_index[1] = 0xf;