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Date: Wed, 13 Jun 2007 12:42:23 +0530
From: Mithlesh Thukral <mithlesh@...xen.com>
To: Dhananjay Phadke <dhananjay.phadke@...il.com>
Cc: netdev@...r.kernel.org, amitkale@...xen.com, jeff@...zik.org,
netxenproj@...syssoft.com, rob@...xen.com
Subject: Re: [PATCH 3/4] NetXen: Add correct routines to setup multicast address
On Wednesday 13 June 2007 10:18, Dhananjay Phadke wrote:
> Mithlesh,
>
> You don't initialize max_mc_count anywhere. The multicast address pool
> can hold 16 addresses for ports {0,1} and 4 for ports {2,3}. You should
> have following line in the probe routine.
>
> > adapter->max_mc_count = (adapter->portnum > 1) ? 4 : 16;
>
Thanks Dhananjay. I will include this in multicast patch which i will send to
netdev today.
Wonder how no one noticed this in any of multicast patches which we have RHEL
and netdev as well i failed to notice this in the original multicast patch
which i got.
--
Mithlesh Thukral
> --
> Dhananjay Phadke
> NetXen Inc.
>
> Mithlesh Thukral wrote:
> > NetXen: Add multi cast filter code
> > This patch adds multi cast filter code to NetXen NIC driver.
> > It also adds capabilities to setup the multicast address in hardware
> > from the host side.
> >
> > Signed-off by: Mithlesh Thukral <mithlesh@...xen.com>
> > ---
> >
> > drivers/net/netxen/netxen_nic.h | 24 +++++
> > drivers/net/netxen/netxen_nic_hdr.h | 3
> > drivers/net/netxen/netxen_nic_hw.c | 119 +++++++++++++++++++++++++-
> > 3 files changed, 143 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/net/netxen/netxen_nic.h
> > b/drivers/net/netxen/netxen_nic.h index a0b39ee..2fddfd1 100644
> > --- a/drivers/net/netxen/netxen_nic.h
> > +++ b/drivers/net/netxen/netxen_nic.h
> > @@ -261,6 +261,27 @@ #define netxen_set_msg_ctxid(config_word
> > #define netxen_set_msg_opcode(config_word, val) \
> > ((config_word) &= ~(0xf<<28), (config_word) |= (val & 0xf) << 28)
> >
> > +#define netxen_set_addr_ctl_id_pool0(config_word, val) \
> > + ((config_word) &= ~3, (config_word) |= val & 0x3)
> > +#define netxen_set_addr_ctl_enable_xtnd_0(config_word) \
> > + ((config_word) |= 1 << 2)
> > +#define netxen_set_addr_ctl_id_pool1(config_word, val) \
> > + ((config_word) &= ~(0x3<<4), (config_word) |= (val & 0x3) << 4)
> > +#define netxen_set_addr_ctl_enable_xtnd_1(config_word) \
> > + ((config_word) |= 1 << 6)
> > +#define netxen_set_addr_ctl_id_pool2(config_word, val) \
> > + ((config_word) &= ~(0x3<<8), (config_word) |= (val & 0x3) << 8)
> > +#define netxen_set_addr_ctl_enable_xtnd_2(config_word) \
> > + ((config_word) |= 1 << 10)
> > +#define netxen_set_addr_ctl_id_pool3(config_word, val) \
> > + ((config_word) &= ~(0x3<<12), (config_word) |= (val & 0x3) << 12)
> > +#define netxen_set_addr_ctl_enable_xtnd_3(config_word) \
> > + ((config_word) |= 1 << 14)
> > +#define netxen_set_addr_ctl_mode(config_word, val) \
> > + ((config_word) &= ~(0x3<<26), (config_word) |= (val & 0x3) << 26)
> > +#define netxen_set_addr_ctl_enable_poll(config_word, val) \
> > + ((config_word) &= ~(0xf<<30), (config_word) |= (val & 0xf) << 30)
> > +
> > struct netxen_rcv_context {
> > __le64 rcv_ring_addr;
> > __le32 rcv_ring_size;
> > @@ -883,6 +904,9 @@ struct netxen_adapter {
> > unsigned char mac_addr[ETH_ALEN];
> > int mtu;
> > int portnum;
> > + u8 promisc;
> > + u8 mc_enabled;
> > + u8 max_mc_count;
> >
> > spinlock_t tx_lock;
> > spinlock_t lock;
> > diff --git a/drivers/net/netxen/netxen_nic_hdr.h
> > b/drivers/net/netxen/netxen_nic_hdr.h index 608e37b..2bfecbc 100644
> > --- a/drivers/net/netxen/netxen_nic_hdr.h
> > +++ b/drivers/net/netxen/netxen_nic_hdr.h
> > @@ -545,6 +545,9 @@ #define NETXEN_MULTICAST_ADDR_HI_1 (NETX
> > #define NETXEN_MULTICAST_ADDR_HI_2 (NETXEN_CRB_NIU + 0x1018)
> > #define NETXEN_MULTICAST_ADDR_HI_3 (NETXEN_CRB_NIU + 0x101c)
> >
> > +#define NETXEN_UNICAST_ADDR_BASE (NETXEN_CRB_NIU + 0x1080)
> > +#define NETXEN_MULTICAST_ADDR_BASE (NETXEN_CRB_NIU + 0x1100)
> > +
> > #define NETXEN_NIU_GB_MAC_CONFIG_0(I) \
> > (NETXEN_CRB_NIU + 0x30000 + (I)*0x10000)
> > #define NETXEN_NIU_GB_MAC_CONFIG_1(I) \
> > diff --git a/drivers/net/netxen/netxen_nic_hw.c
> > b/drivers/net/netxen/netxen_nic_hw.c index baff17a..c5d4ff9 100644
> > --- a/drivers/net/netxen/netxen_nic_hw.c
> > +++ b/drivers/net/netxen/netxen_nic_hw.c
> > @@ -303,6 +303,97 @@ int netxen_nic_set_mac(struct net_device
> > return 0;
> > }
> >
> > +#define NETXEN_UNICAST_ADDR(port, index) \
> > + (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
> > +
> > +int netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
> > +{
> > + u32 val = 0;
> > + u16 port = physical_port[adapter->portnum];
> > +
> > + if (adapter->mc_enabled)
> > + return 0;
> > +
> > + netxen_set_addr_ctl_enable_poll(val, 0xf);
> > +
> > + if (adapter->ahw.board_type == NETXEN_NIC_XGBE)
> > + netxen_set_addr_ctl_mode(val, 0x3);
> > + else
> > + netxen_set_addr_ctl_mode(val, 0x0);
> > +
> > + netxen_set_addr_ctl_id_pool0(val, 0x0);
> > + netxen_set_addr_ctl_id_pool1(val, 0x1);
> > + netxen_set_addr_ctl_id_pool2(val, 0x2);
> > + netxen_set_addr_ctl_id_pool3(val, 0x3);
> > +
> > + netxen_set_addr_ctl_enable_xtnd_0(val);
> > + netxen_set_addr_ctl_enable_xtnd_1(val);
> > + netxen_set_addr_ctl_enable_xtnd_2(val);
> > + netxen_set_addr_ctl_enable_xtnd_3(val);
> > +
> > + netxen_crb_writelit_adapter(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
> > +
> > + val = 0xffffff;
> > +
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,0), val);
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,0)+4,
> > + val);
> > +
> > + memcpy(&val, adapter->mac_addr, 3);
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,1), val);
> > +
> > + memcpy(&val, adapter->mac_addr+3, 3);
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,1) + 4,
> > + val);
> > +
> > + adapter->mc_enabled = 1;
> > + return 0;
> > +}
> > +
> > +int netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
> > +{
> > + u32 val = 0;
> > + u16 port = physical_port[adapter->portnum];
> > +
> > + if(!adapter->mc_enabled)
> > + return 0;
> > +
> > + netxen_crb_writelit_adapter(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
> > +
> > + memcpy(&val, adapter->mac_addr, 3);
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,0), val);
> > +
> > + memcpy(&val, adapter->mac_addr+3, 3);
> > + netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port,0) + 4,
> > + val);
> > +
> > + adapter->mc_enabled = 0;
> > + return 0;
> > +}
> > +
> > +#define NETXEN_MCAST_ADDR(port, index) \
> > + (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
> > +
> > +int netxen_nic_set_mcast_addr(struct netxen_adapter *adapter, int index,
> > + u8 *addr)
> > +{
> > + u32 hi = 0;
> > + u32 lo = 0;
> > + u16 port = physical_port[adapter->portnum];
> > +
> > + hi = (u32) addr[0] |
> > + ((u32) addr[1] << 8) |
> > + ((u32) addr[2] << 16);
> > + lo = (u32) addr[3] |
> > + ((u32) addr[4] << 8) |
> > + ((u32) addr[5] << 16);
> > +
> > + netxen_crb_writelit_adapter(adapter, NETXEN_MCAST_ADDR(port,index),
> > hi); + netxen_crb_writelit_adapter(adapter, NETXEN_MCAST_ADDR(port,index)
> > + 4, + hi);
> > + return 0;
> > +}
> > +
> > /*
> > * netxen_nic_set_multi - Multicast
> > */
> > @@ -310,17 +401,39 @@ void netxen_nic_set_multi(struct net_dev
> > {
> > struct netxen_adapter *adapter = netdev_priv(netdev);
> > struct dev_mc_list *mc_ptr;
> > + u8 null_addr[] = {0, 0, 0, 0, 0, 0};
> > + int index = 0;
> >
> > mc_ptr = netdev->mc_list;
> > - if (netdev->flags & IFF_PROMISC) {
> > - if (adapter->set_promisc)
> > + if ((netdev->flags & IFF_PROMISC) || (netdev->mc_count >
> > + adapter->max_mc_count)) {
> > + if (adapter->set_promisc) {
> > adapter->set_promisc(adapter,
> > NETXEN_NIU_PROMISC_MODE);
> > + netxen_nic_disable_mcast_filter(adapter);
> > + return;
> > + }
> > } else {
> > - if (adapter->unset_promisc)
> > + if ((netdev->mc_count == 0) && (adapter->unset_promisc)) {
> > adapter->unset_promisc(adapter,
> > NETXEN_NIU_NON_PROMISC_MODE);
> > + netxen_nic_disable_mcast_filter(adapter);
> > + return;
> > + }
> > }
> > + adapter->set_promisc(adapter, NETXEN_NIU_PROMISC_MODE);
> > + netxen_nic_enable_mcast_filter(adapter);
> > +
> > + for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next, index++)
> > + netxen_nic_set_mcast_addr(adapter, index, mc_ptr->dmi_addr);
> > +
> > + if (index != netdev->mc_count)
> > + printk(KERN_ERR"%s: %s multicast address count mismatch\n",
> > + netxen_nic_driver_name, netdev->name);
> > +
> > + /* Clear out the remaining addresses */
> > + for (; index < adapter->max_mc_count; index++)
> > + netxen_nic_set_mcast_addr(adapter, index, null_addr);
> > }
> >
> > /*
> > -
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