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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-19 20:05:34 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-19 20:05:34 +0300 |
commit | 1200b6809dfd9d73bc4c7db76d288c35fa4b2ebe (patch) | |
tree | 552e03de245cdbd0780ca1215914edc4a26540f7 /drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c | |
parent | 6b5f04b6cf8ebab9a65d9c0026c650bb2538fd0f (diff) | |
parent | fe30937b65354c7fec244caebbdaae68e28ca797 (diff) | |
download | linux-1200b6809dfd9d73bc4c7db76d288c35fa4b2ebe.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Support more Realtek wireless chips, from Jes Sorenson.
2) New BPF types for per-cpu hash and arrap maps, from Alexei
Starovoitov.
3) Make several TCP sysctls per-namespace, from Nikolay Borisov.
4) Allow the use of SO_REUSEPORT in order to do per-thread processing
of incoming TCP/UDP connections. The muxing can be done using a
BPF program which hashes the incoming packet. From Craig Gallek.
5) Add a multiplexer for TCP streams, to provide a messaged based
interface. BPF programs can be used to determine the message
boundaries. From Tom Herbert.
6) Add 802.1AE MACSEC support, from Sabrina Dubroca.
7) Avoid factorial complexity when taking down an inetdev interface
with lots of configured addresses. We were doing things like
traversing the entire address less for each address removed, and
flushing the entire netfilter conntrack table for every address as
well.
8) Add and use SKB bulk free infrastructure, from Jesper Brouer.
9) Allow offloading u32 classifiers to hardware, and implement for
ixgbe, from John Fastabend.
10) Allow configuring IRQ coalescing parameters on a per-queue basis,
from Kan Liang.
11) Extend ethtool so that larger link mode masks can be supported.
From David Decotigny.
12) Introduce devlink, which can be used to configure port link types
(ethernet vs Infiniband, etc.), port splitting, and switch device
level attributes as a whole. From Jiri Pirko.
13) Hardware offload support for flower classifiers, from Amir Vadai.
14) Add "Local Checksum Offload". Basically, for a tunneled packet
the checksum of the outer header is 'constant' (because with the
checksum field filled into the inner protocol header, the payload
of the outer frame checksums to 'zero'), and we can take advantage
of that in various ways. From Edward Cree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
net/mlx4_core: Fix backward compatibility on VFs
phy: mdio-thunder: Fix some Kconfig typos
lan78xx: add ndo_get_stats64
lan78xx: handle statistics counter rollover
RDS: TCP: Remove unused constant
RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
net: smc911x: convert pxa dma to dmaengine
team: remove duplicate set of flag IFF_MULTICAST
bonding: remove duplicate set of flag IFF_MULTICAST
net: fix a comment typo
ethernet: micrel: fix some error codes
ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
bpf, dst: add and use dst_tclassid helper
bpf: make skb->tc_classid also readable
net: mvneta: bm: clarify dependencies
cls_bpf: reset class and reuse major in da
ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
ldmvsw: Add ldmvsw.c driver code
...
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c | 143 |
1 files changed, 126 insertions, 17 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c index b6fa74aafe47..fed83d88fc4e 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c @@ -236,23 +236,6 @@ int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size, return -ETIMEDOUT; } -/** - * hash_mac_addr - return the hash value of a MAC address - * @addr: the 48-bit Ethernet MAC address - * - * Hashes a MAC address according to the hash function used by hardware - * inexact (hash) address matching. - */ -static int hash_mac_addr(const u8 *addr) -{ - u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2]; - u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5]; - a ^= b; - a ^= (a >> 12); - a ^= (a >> 6); - return a & 0x3f; -} - #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\ FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \ FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG) @@ -435,6 +418,61 @@ int t4vf_set_params(struct adapter *adapter, unsigned int nparams, } /** + * t4vf_fl_pkt_align - return the fl packet alignment + * @adapter: the adapter + * + * T4 has a single field to specify the packing and padding boundary. + * T5 onwards has separate fields for this and hence the alignment for + * next packet offset is maximum of these two. And T6 changes the + * Ingress Padding Boundary Shift, so it's all a mess and it's best + * if we put this in low-level Common Code ... + * + */ +int t4vf_fl_pkt_align(struct adapter *adapter) +{ + u32 sge_control, sge_control2; + unsigned int ingpadboundary, ingpackboundary, fl_align, ingpad_shift; + + sge_control = adapter->params.sge.sge_control; + + /* T4 uses a single control field to specify both the PCIe Padding and + * Packing Boundary. T5 introduced the ability to specify these + * separately. The actual Ingress Packet Data alignment boundary + * within Packed Buffer Mode is the maximum of these two + * specifications. (Note that it makes no real practical sense to + * have the Pading Boudary be larger than the Packing Boundary but you + * could set the chip up that way and, in fact, legacy T4 code would + * end doing this because it would initialize the Padding Boundary and + * leave the Packing Boundary initialized to 0 (16 bytes).) + * Padding Boundary values in T6 starts from 8B, + * where as it is 32B for T4 and T5. + */ + if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5) + ingpad_shift = INGPADBOUNDARY_SHIFT_X; + else + ingpad_shift = T6_INGPADBOUNDARY_SHIFT_X; + + ingpadboundary = 1 << (INGPADBOUNDARY_G(sge_control) + ingpad_shift); + + fl_align = ingpadboundary; + if (!is_t4(adapter->params.chip)) { + /* T5 has a different interpretation of one of the PCIe Packing + * Boundary values. + */ + sge_control2 = adapter->params.sge.sge_control2; + ingpackboundary = INGPACKBOUNDARY_G(sge_control2); + if (ingpackboundary == INGPACKBOUNDARY_16B_X) + ingpackboundary = 16; + else + ingpackboundary = 1 << (ingpackboundary + + INGPACKBOUNDARY_SHIFT_X); + + fl_align = max(ingpadboundary, ingpackboundary); + } + return fl_align; +} + +/** * t4vf_bar2_sge_qregs - return BAR2 SGE Queue register information * @adapter: the adapter * @qid: the Queue ID @@ -1266,6 +1304,77 @@ int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free, } /** + * t4vf_free_mac_filt - frees exact-match filters of given MAC addresses + * @adapter: the adapter + * @viid: the VI id + * @naddr: the number of MAC addresses to allocate filters for (up to 7) + * @addr: the MAC address(es) + * @sleep_ok: call is allowed to sleep + * + * Frees the exact-match filter for each of the supplied addresses + * + * Returns a negative error number or the number of filters freed. + */ +int t4vf_free_mac_filt(struct adapter *adapter, unsigned int viid, + unsigned int naddr, const u8 **addr, bool sleep_ok) +{ + int offset, ret = 0; + struct fw_vi_mac_cmd cmd; + unsigned int nfilters = 0; + unsigned int max_naddr = adapter->params.arch.mps_tcam_size; + unsigned int rem = naddr; + + if (naddr > max_naddr) + return -EINVAL; + + for (offset = 0; offset < (int)naddr ; /**/) { + unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact) ? + rem : ARRAY_SIZE(cmd.u.exact)); + size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, + u.exact[fw_naddr]), 16); + struct fw_vi_mac_exact *p; + int i; + + memset(&cmd, 0, sizeof(cmd)); + cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) | + FW_CMD_REQUEST_F | + FW_CMD_WRITE_F | + FW_CMD_EXEC_V(0) | + FW_VI_MAC_CMD_VIID_V(viid)); + cmd.freemacs_to_len16 = + cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(0) | + FW_CMD_LEN16_V(len16)); + + for (i = 0, p = cmd.u.exact; i < (int)fw_naddr; i++, p++) { + p->valid_to_idx = cpu_to_be16( + FW_VI_MAC_CMD_VALID_F | + FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_MAC_BASED_FREE)); + memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr)); + } + + ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &cmd, + sleep_ok); + if (ret) + break; + + for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) { + u16 index = FW_VI_MAC_CMD_IDX_G( + be16_to_cpu(p->valid_to_idx)); + + if (index < max_naddr) + nfilters++; + } + + offset += fw_naddr; + rem -= fw_naddr; + } + + if (ret == 0) + ret = nfilters; + return ret; +} + +/** * t4vf_change_mac - modifies the exact-match filter for a MAC address * @adapter: the adapter * @viid: the Virtual Interface ID |